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Anatomy Exam 4 Muscles
Muscle Chart for Exam 4
343
Anatomy
Graduate
12/07/2012

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Term
Pelvic Floor (Pelvic Diaphragm): General Info
Definition
levator ani + coccygeus; Functions to support viscera (especially when increased intrabdominal pressure [coughing, laughing, weight lifting] and aids voluntary control of urination and fecal continence
Term
Muscles of Pelvic Floor
Definition
Levator ani
Puborectalix
Pubococcygeus
Iliococcygeus
Coccygeus (Ischiococcygeus)
Term
Levator Ani: Origin
Definition
Muscular sling from pubis
Term
Levator Ani: Notes
Definition
Maintains fecal continence
Sometimes treated as part of pubococcygeus
Term
Pubococcygeus: Origin
Definition
Pubis and tendinous arch
Term
Pubococcygeus: Insertion
Definition
Coccyx
Term
Iliococcygeus: Origin
Definition
Tendinous Arch and Ischial Spine
Term
Iliococcygeus: Insertion
Definition
Blends with pubococcygeus
Term
Coccygeus (Ischiococcygeus): Origin
Definition
Ischial Spine
Term
Coccygeus (Ischiococcygeus): Insertion
Definition
Coccygeus/Sacrum
Term
Muscles: Superficial Perineal Pouch
Definition
Bulbospongiosus
Ischiocavernosus
Superficial transverse perineal muscles
Term
Bulbospongiosus: Origin (Male)
Definition
Covers bulb of penis
Perineal Body
Term
Bulbospongiosus: Origin (Female)
Definition
Cover bulb of vestibule and greater vestibular glands
Term
Bulbospongiosus: Insertion (Male)
Definition
Paired Muscles- fused as median tendinous raphe
Term
Bulbospongiosus: Action (Male)
Definition
Compresses bulb and crura when contracted
aids: emptying spongy urethra of residual urine/semine, erection by increasing pressure on erectile tissue in root and compressing venous return (deep dorsal vein of penis)
Term
Bulbospongiosus: Action (Female)
Definition
Compress deep dorsal vein of clitoris and weakly constrict vagina
Term
Bulbospongiosus: Innervation
Definition
Perineal Branches of Pedundal Nerve (S2-S4)
Term
Ischiocavernosus: Origin
Definition
Paired muscles, cover crura
Term
Ischiocavernosus: Actions
Definition
Compresses each crus
Aids: achieving and maintaining erection via compression of crura (forcing blood distally) and retarding venous return
Term
Ischiocavernosus: Innervation
Definition
Perineal branches of pedundal nerve (S2-S4)
Term
Ischiocavernosus: Notes
Definition
Assists in erection for both males and females
Term
Superficial transverse perineal muscles: Origin
Definition
Ischial tuberosity
Term
Superficial transverse perineal muscles: Insertion
Definition
Perineal Body
Term
Superficial transverse perineal muscles: Actions
Definition
Fixes Perineal body
Term
Superficial transverse perineal muscles: Innervation
Definition
Perineal branches of pedundal nerves (S2-S4)
Term
Muscles Innervated by the Perineal Branch of the pedundal nerve
Definition
Bulbospongiosus
Ischiocavernosus
Superficial Transverse Perineal Muscles
External Urethral Sphincter
Term
Muscles of the Deep Perineal Pouch
Definition
Deep Transverse Perineal muscles
External Urethral Sphincter
Term
Deep transverse Perineal Muscles: Origin
Definition
Ischial Ramii
Term
Deep Transverse Perineal Muscles: Insertion
Definition
Perineal Body
Term
Deep Transverse Perineal Muscles: Actions
Definition
Fixes Perineal Body
Term
Deep Transverse Perineal Muscles: Notes
Definition
Tiny. Posterior to Sphincter Urethrae
Term
External Urethral Sphincter: Origin
Definition
Muscle Surrounding Urethra
Term
External Urethral Sphincter: Innervation
Definition
Perineal Branches of Pedundal nerve (S2-S4)
Term
External urethral Sphincter: Notes
Definition
Voluntary Control
Term
Anterior Compartment of Thigh: Primary Action
Definition
Extend leg and flex thigh
Term
Anterior Compartment of Thigh: Innervation
Definition
Femoral nerve
Term
Anterior Compartment of Thigh: Blood Supply
Definition
Femoral Artery
Term
Medial Compartment of Thigh: Primary Action
Definition
Adduct Thigh
Term
Medial Compartment of Thigh: Innervation
Definition
Obturator Nerve
Term
Medial Compartment of Thigh: Blood Supply
Definition
Obturator Artery
Term
Posterior Compartment of Thigh: Primary Actions
Definition
Flex leg and extend thigh
Term
Posterior Compartment of Thigh: Innervation
Definition
Sciatic Nerve
Term
Posterior Compartment of Thigh: Blood Supply
Definition
Perforating Branches of Deep Femoral Artery
Term
Superficial Gluteal Muscles: Function
Definition
Mainly extensors and abductors
Term
Superficial Gluteal Muscles
Definition
Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Term
Gluteus Maximus: Origin
Definition
Sacrotuberous ligament
Ilium (Posterior to posterior gluteal line)
Sacrum
Coccyx
Term
Gluteus Maximus: Insertion
Definition
Gluteal Tuberosity and Iliotibial tract
Term
Gluteus maximus: Actions
Definition
Extend and laterally rotate thigh
Rising from sitting position
Term
Gluteus Maximus: Innervation
Definition
Inferior Gluteal Nerve (L5-S2)
Term
Gluteus maximus: Blood Supply
Definition
Superior and Inferior Gluteal Arteries
Term
Gluteus Medius: Origin
Definition
Ilium between anterior and posterior gluteal line
Term
Gluteus Medius: Insertion
Definition
Greater Trochanter
Term
Gluteus Medius: Actions
Definition
Abduction and Medial Rotation of Thigh
Term
Gluteus Medius: Innervation
Definition
Superior Gluteal Nerve (L4-S1)
Term
Gluteus Medius: Blood Supply
Definition
Superior Gluteal Artery
Term
Trendelenburg Sign
Definition
Damage to superior gluteal nerve -> waggling gait
Term
Gluteus Minimus: Origin
Definition
Ilium between anterior and inferior gluteal lines
Term
Gluteus minimus: Insertion
Definition
Greater Trochanter
Term
Gluteus minimus: Actions
Definition
Abduction and medial rotation of thighs
Term
Gluteus Minimus: Innervation
Definition
Superior Gluteal Nerve (L4-S1)
Term
Gluteus Minimus: Blood Supply
Definition
Superior Gluteal Artery
Term
Deep Gluteal Muscles: Function
Definition
Stabilizers of hip joint
Lateral rotators of Thigh
Term
Deep Gluteal Muscles
Definition
Piriformis
Obturator Internus (Triceps coxae)
Superior Gemellus (Triceps coxae)
Inferior Gemellus (Triceps coxae)
Quadratus Femoris
Term
Piriformis: Origin
Definition
Anterior surface of sacrum and sacrotuberous ligament (through greater sciatic foramen)
Term
Piriformis: Insertion
Definition
Greater Trochanter
Term
Piriformis: Actions
Definition
Stabilize hip joint and laterally rotate thigh
Term
Piriformis: Innervation
Definition
Branches of ventral rami of S1 and S2
Term
Piriformis: Notes
Definition
"Bed" for sacral nerve plexus
Located partly in pelvis and partly in gluteal region
Term
Obturator Internus: Origin
Definition
Obturator Membrane and surround bone
Leaves pelvis through lesser sciatic foramen
Term
Obturator Internus: Insertion
Definition
Greater Trochanter
Term
Obturator Internus: Action
Definition
Stabilize hip joint and laterally rotate thigh
Term
Obturator Internus: Innervation
Definition
Nerve to Obturator Internus (L5-S2)
Term
Obturator internus: Notes
Definition
Obturator membrane lines muscles
Forms tendinous arch medially
Term
Superior Gemellus: Origin
Definition
Ischial Spine
Term
Superior Gemellus: Insertion
Definition
Tendon of Obturator Internus (to Greater trochanter)
Term
Superior Gemellus: Actions
Definition
Stabilize hip joint and laterally rotate thigh
Term
Superior Gemellus: Innervation
Definition
Nerve to Obturator Internus (L5-S2)
Term
Inferior Gemellus: Origin
Definition
Ischial Tuberosity
Term
Inferior Gemellus: Insertion
Definition
Tendon of Obturator internus (to greater trochanter)
Term
Inferior Gemellus: Actions
Definition
Stabilize hip joint and laterally rotate thigh
Term
Inferior Gemellus: Innervation
Definition
Nerve to quadratus femoris (L4-S1)
Term
Quadratus Femoris: Origin
Definition
Ischial Tuberosity
Term
Quadratus Femoris: Insertion
Definition
Intertrochanteric Crest
Term
Quadratus Femoris: Actions
Definition
Stabilize hip joint and laterally rotate thigh
Term
Quadratus Femoris: Innervation
Definition
Nerve to Quadratus Femoris (L4-S1)
Term
Quadratus Femoris: Blood Supply
Definition
Inferior Gluteal ARtery
Term
Sartorius: Origin
Definition
ASIS
Term
Sartorius: Insertion
Definition
Superior Part of medial surface of tibia
Term
Sartorius: Actions
Definition
Flexes Knee and Hip
Term
Sartorius: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Sartorius: Notes
Definition
Lateral border femoral triangle
Longest muscle in the body
Term
Anterior Compartment of Thigh: Main function
Definition
Flexors of hip and extensors of knee
Term
Anterior Compartment of Thigh: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Anterior Compartment of Thigh: Muscles
Definition
Sartorius
Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius
Articularis genu
Psoas Major
Iliacus
Tensor Fascia Latae
Term
Rectus femoris: Origin
Definition
AIIS
Term
Rectus Femoris: Insertion
Definition
Patella
Term
Rectus Femoris: Actions
Definition
Flexors of hip and extensors of knee
Term
Rectus Femoris: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Vastus Lateralis: Origin
Definition
Linea aspera
Term
Vastus Lateralis: Insertion
Definition
Patella
Term
Vastus Lateralis: Actions
Definition
Flexors of hip and extensors of knee
Term
Vastus Lateralis: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Vastus Medialis: Origin
Definition
Linea aspera
Term
Vastus Medialis: Insertion
Definition
Patella
Term
Vastus Medialis: Actions
Definition
Flexors of hip and extensors of the knee
Term
Vastus Medialis: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Vastus Intermedius: Origin
Definition
Body of femur
Term
Vastus Intermedius: Insertion
Definition
Patella
Term
Vastus Intermedius: Actions
Definition
Flexors of hip and extensors of knee
Term
Vastus Intermedius: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Articularis genu: Origin
Definition
Anterior part of femur
Term
Articularis genu: Insertion
Definition
Synovial membrane of knee
Term
Articularis genu: Actions
Definition
Flexors of hip and extensors of knee
Term
Articularis genu: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Articularis genu: Notes
Definition
Pulls up on knee capsule
Term
Psoas Major: Origin
Definition
Lumbar vertebrae
Term
Psoas Major: Insertion
Definition
Lesser Trochanter
Term
Psoas Major: Actions
Definition
Flexors of hip and extensors or knee
Term
Psoas Major: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Roof of femoral triangle
Definition
Iliopsoas with pectineus
Term
Iliacus: Origin
Definition
Iliac Crest and Fossa
Term
Iliacus: Insertion
Definition
Lesser trochanter
Term
Iliacus: Actions
Definition
Flexors of hip and extensors of knee
Term
Iliacus: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Tensor fascia latae: Origin
Definition
ASIS
Term
Tensor fasci latae: Insertion
Definition
Iliotibial tract
Term
Tensor fascia latae: Actions
Definition
Flexors of hip and extensors of knee
Term
Tensor fascia latae: Innervation
Definition
Femoral Nerve (L2-L4)
Term
Hamstring Muscles
Definition
Biceps femoris (long head)
Semitendonosus
Semimembranosus
Term
Hamstring Muscles: Action
Definition
Act on two joints
Extend hip and flex knee
Term
Hamstring Muscles: Innervation
Definition
Tibial Nerve (L4-S3) of Sciatic Nerve
Term
Muscles of Posterior Compartment of Thigh
Definition
Biceps Femoris (long head and short head)
Semitendinosus
Semimembranosus
Term
Biceps femoris (Long Head): Origin
Definition
Ischial tuberosity
Term
Biceps femoris (Long Head): Insertion
Definition
Fibular Head
Term
Biceps femoris (Long Head): Actions
Definition
Act on two joints
Extend hip and flex knee
Term
Biceps femoris (Long Head): Innervation
Definition
Tibial Nerve (L4-S3)
Term
Biceps femoris (Long Head): Notes
Definition
Lateral to short head
Term
Biceps femoris (Short head): Origin
Definition
Linea aspera
Term
Biceps femoris (Short head): Insertion
Definition
Fibular Head
Term
Biceps femoris (short head): Actions
Definition
Act on two joints
Extend hip and flex knee
Term
Biceps femoris (short head): Innervation
Definition
Common peroneal Nerve (L4-S2)
Term
Semitendonosus: Origin
Definition
Ischial Tuberosity
Term
Semitendonosus: Insertion
Definition
Medial Surface of Upper tibia
Term
Semitendonosus: Actions
Definition
Act on two joints
Extend hip and flex knee
Term
Semitendonosus: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Semimembranosus: Origin
Definition
Ischial Tuberosity
Term
Semimembranosus: Insertion
Definition
Medial tibial condyle
Term
Semimembranosus: Actions
Definition
Act on two joints
Extend hip and flex knee
Term
Semimembranosus: Innervation
Definition
Tibial nerve (L4-S3)
Term
Semimembranosus: Notes
Definition
Deep to semitendonosus
Term
Muscles that Insert on the medial surface of the upper Tibia
Definition
Semitendonus
Gracilus
Sartorius
Term
Muscles of Medial Compartment of thigh
Definition
Pectineus
Adductor Brevis
Adductor Longus
Adductor Magnus (adductor and hamstring parts)
Gracilis
Obturator Externus
Term
Pectineus: Origin
Definition
Superior ramus of pubis
Term
Pectineus: Insertion
Definition
Pectineal line of femur
Term
Pectineus: Actions
Definition
Adduct thigh
Term
Pectineus: Innervation
Definition
Femoral and Obturator Nerve (L2-L4)
Term
Pectineus: Notes
Definition
Roof of femoral triangle (with iliopsoas)
small
Sometimes considered anterior compartment because of location/innervation
Term
Adductor brevis: Origin
Definition
Inferior ramus of pubic bone
Term
Adductor brevis: Insertion
Definition
Linea aspera
Term
Adductor brevis: Actions
Definition
Adduct thigh
Term
Adductor brevis: Innervation
Definition
Obturator Nerve (L2-L)
Term
Adductor longus: Origin
Definition
Body of pubic bone
Term
Adductor longus: Insertion
Definition
Linea aspera
Term
Adductor longus: Action
Definition
Adduct thigh
Term
Adductor longus: Innervation
Definition
Obturator Nerve (L2-L4)
Term
Adductor longus: Notes
Definition
Medial border of femoral triangle
Term
Adductor magnus (Adductor Part): Origin
Definition
Ischiopubic ramus
Term
Adductor magnus (Adductor Part): Insertion
Definition
Linea aspera
Term
Adductor magnus (Adductor Part): Actions
Definition
Adduct thigh
Term
Adductor magnus (Adductor part): Innervation
Definition
Obturator Nerve (L2-L4)
Term
Adductor magnus (Hamstring part): Origin
Definition
Ischial tuberosity
Term
Adductor magnus (Hamstring part): Insertion
Definition
Adductor tubercle of femur
Term
Adductor magnus (Hamstring part): Actions
Definition
Flexes knee
Term
Adductor magnus (Hamstring part): Innervation
Definition
Tibial Nerve (L4-S3)
Term
Gracilis: Origin
Definition
Inferior ramus of pubis
Term
Gracilis: Insertion
Definition
Superior part of medial surface of tibia
Term
Gracilis: Actions
Definition
Adduct thigh
Term
Gracilis: Innervation
Definition
Obturator Nerve (L2-L4)
Term
Gracilis: Notes
Definition
Most medial
thin
Term
Obturator Externus: Origin
Definition
Margins of obturator foramen and obturator membrane
Term
Obturator Externus: Insertion
Definition
Trochanteric fossa of femur
Term
Obturator Externus: Actions
Definition
Adduct Thigh
Term
Obturator Externus: Innervation
Definition
Obturator Nerve (L2-L4)
Term
Posterior Compartment of leg: Boundaries
Definition
Bounded by fibula, anterior and posterior intermuscular septa and deep fascia.
Divided into superfcial and deep compartmentby transversae intermuscular septum
Term
Posterior Compartment of Leg: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Posterior Compartment of Leg: Blood Supply
Definition
Posterior tibial artery
Peroneal artery
Term
Muscles of the superficial group of Posterior compartment of leg
Definition
Gastrocnemius
Soleus
Plantaris
Term
Gastrocnemius: Origin
Definition
Lateral and medial condyles of femur
Term
Gastrocnemius: Insertion
Definition
Calcaneous
Term
Gastrocnmeius: Actions
Definition
Plantar flexes ankle
Term
Gastrocnemius: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Gastrocnemius: Blood Supply
Definition
Posterior tibial artery
Peroneal Artery
Term
Gastrocnemius: Notes
Definition
Make up tendocalcaneous with soleus
Has two heads
Term
Soleus: Origin
Definition
Fibula
Soleal line of tibia
Term
Soleus: Insertion
Definition
Calcaneous
Term
Soleus: Actions
Definition
Plantar flexes ankle
Term
Soleus: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Soleus: Blood Supply
Definition
Posterior tibial artery
Peroneal Artery
Term
Soleus: Notes
Definition
Anti-gravity muscle
No action on knee
Term
Plantaris: Origin
Definition
Lateral supracondylar line of femur
Term
Plantaris: Insertion
Definition
Calcaneous
Term
Plantaris: Actions
Definition
Weak plantar flexion of ankle
weak flexion of leg
Term
Plantaris: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Plantaris: Blood Supply
Definition
Posterior Tibial Artery
Peroneal Artery
Term
Plantaris: Notes
Definition
Absent 5-10%
does NOT contribute to Achille's tendon
Term
Muscles of Deep Group of Posterior Compartment of Leg
Definition
Popliteus
Flexor Hallucis Longus
Flexor Digitorum Longus
Tibialis Posterior
Term
Popliteus: Origin
Definition
Lateral condyle of femur
Term
Popliteus: Insertion
Definition
Superior to soleal line of tibia
Term
Popliteus: Actions
Definition
Laterally rotates femur 5 degrees to unlock knee joint
Term
Popliteus: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Popliteus: Blood Supply
Definition
Posterior tibial artery
Peroneal Artery
Term
Flexor Hallucis Longus: Origin
Definition
Fibula and IO membrane
Term
Flexor Hallucis Longus: Insertion
Definition
Base 1st digital phalanx
Term
Flexor Hallucis Longus: Actions
Definition
Flexes great toe
Plantar flexes ankle
Term
Flexor Hallucis Longus: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Flexor Hallucis Longus: Blood Supply
Definition
Posterior tibial artery
Peroneal artery
Term
Flexor Hallucis Longus: Notes
Definition
Crosses Flexor Digitorum Longus tendon after flexor retinaculum
Term
Flexor Digitorum Longus: Origin
Definition
Tibia inferior to soelal line
Term
Flexor Digitorum Longus: Insertion
Definition
Bases of distal phalanges toes 2-5
Term
Flexor Digitorum Longus: Action
Definition
Flexes digits 2-5
Plantar flexes ankle
Term
Flexor Digitorum Longus: Innervation
Definition
Tibial Nerve (L4-S3)
Term
Flexor Digitorum Longus: Blood supply
Definition
Posterior tibial artery
Peroneal artery
Term
Tibialis Posterior: Origin
Definition
Tibia
Fibula
IO membrane
Term
Tibialis posterior: Insertion
Definition
Navicular
Cuneiform
Cuboid
Bases of metatarsals 2,3,4
Term
Tibialis Posterior: Action
Definition
Plantar flexes ankle
Inverts foot
Term
Tibialis Posterior: Innervation
Definition
Tibial nerve (L4-S3)
Term
Tibialis Posterior: Blood Supply
Definition
Posterior tibial artery
Peroneal artery
Term
Anterior Compartment of leg: Notes
Definition
Anterior to IO membrane
Between anterior intermuscular septum and tibia
Muscles pass anterior to ankle joints
Term
Anterior Compartment of Leg: Innervation
Definition
Deep peroneal nerve (Branch of common peroneal nerve L4-S2)
Term
Anterior compartment of Leg: Blood supply
Definition
Anterior tibial artery (Branch of popliteal artery)
Term
Compartment Syndrome
Definition
Trauma to muscles of anterior compartment
Bleeding -> increased pressure -> compression of other structures
Term
Injury to common peroneal nerve
Definition
Paralysis of all anterior and lateral compartment muscles
Term
Muscles of Anterior Compartment
Definition
Tibialis Anterior
Extensor Hallucis Longus
Extensor Digitorum Longus
Peronius tertius
Term
Tibialis Anterior: Origin
Definition
Tibia and IO membrane
Term
Tibialis Anterior: Insertion
Definition
Medial cuneiform and 1st metatarsal
Term
Tibialis Anterior: Actions
Definition
Dorsiflex ankle
Term
Tibialis Anterior: Innervation
Definition
Deep peroneal nerve (L4-S2)
Term
Tibialis Anterior: Blood Supply
Definition
Anterior tibial artery
Term
Tibialis Anterior: Notes
Definition
Shin splints
Tibialis anterior strain
Term
Extensor Hallucis longus: Origin
Definition
Fibula and IO membrane
Term
Extensor Hallucis Longus: Insertion
Definition
Distal phalanx 1st toe
Term
Extensor Hallucis Longus: Action
Definition
Dorsiflex ankle
Extends great toe
Term
Extensor Hallucis Longus: Innerveation
Definition
Deep peroneal nerve (L4-S2)
Term
Extensor Hallucis Longus: Blood Supply
Definition
Anterior tibial artery
Term
Extensor Digitorum Longus: Origin
Definition
Tibia
Fibula
IO membrane
Term
Extensor digitorum longus: Insertion
Definition
middle and distal phalanges toe 2-5
Term
Extensor digitorum longus: Actions
Definition
Dorsiflex ankle
Extends digits 2-5
Term
Extensor digitorum longus: Innervation
Definition
Deep peroneal nerve (L4-S2)
Term
Extensor digitorum longus: Blood supply
Definition
Anterior tibial artery
Term
Extensor digitorum longus: Notes
Definition
One tendon for each of lateral four toes
Dorsal expansions over the toes
Term
Peronius tertius: Origin
Definition
Fibula and IO membrane
Term
Peroniuis tertius: Insertion
Definition
5th metatarsal base
Term
Peronius Tertius: Actions
Definition
Dorsiflex ankle
Extend toes
Term
Peronius Tertius: Innervation
Definition
Deep peroneal nerve (L4-S2)
Term
Peronius Tertius: Blood Supply
Definition
Anterior tibial artery
Term
Lateral Compartment (Everter Compartment): Boundaries
Definition
Bound by fibula
Anterior and posterior intermuscular septa and deep fascia
Term
Lateral Compartment: Innervation
Definition
Superficial peroneal nerve (L4-S2)
Term
Lateral Compartment: Blood Suply
Definition
Branches of peroneal artery
Anterior tibial artery
Term
Muscles of Lateral Compartment
Definition
Peroneus longus
Peroneus brevis
Term
Peroneus longus: Origin
Definition
Lateral fibula
Term
Peroneus longus: Insertion
Definition
Base 1st metatarsal and medial cuneiform
Term
Peroneus Longus: Actions
Definition
Everts foot
Term
Peroneus Longus: Innervation
Definition
Superficial peroneal nerve (L4-S2)
Term
Peroneus Longus: Blood Supply
Definition
Branches of peroneal and anterior tibial arteries
Term
Peroneus brevis: Origin
Definition
Lateral fibula
Term
Peroneus brevis: Insertion
Definition
Tuberosity 5th metatarsal
Term
Peroneus brevis: Actions
Definition
Everts foot
Term
Peroneus brevis: Innervation
Definition
Superficial peroneal nerve (L4-S2)
Term
Peroneus brevis: Blood supply
Definition
Branches of peronea and anterior tibial arteries
Term
Dorsal Foot Muscles: Innervation
Definition
Branch of deep fibular nerve
Term
Dorsal Foot Muscles: Blood Supply
Definition
Dorsalis pedis artery
Term
Muscles of the Dorsal Foot
Definition
Extensor Digitorum Brevis
Extensor Hallucis Brevis
Term
Extensor Digitorum Brevis: Origin
Definition
Anterior calcaneous
Term
Extensor Digitorum Brevis: Insertion
Definition
Tendons of extensor digitorum longus
Term
Extensor digitorum brevis: Actions
Definition
Extend digits 2,3,4
Term
Extensor Digitorum Brevis: Innervation
Definition
Lateral terminal branch of peroneal nerve
Term
Extensor digitorum brevis: Blood Supply
Definition
Dorsalis Pedis
Term
Extensor Digitorum Brevis: Notes
Definition
Only intrinsic muscle of dorsum of foot
Under tendons of extensor digitorum longus
Term
Extensor Hallucis Brevis: Origin
Definition
Anterior calcaneous
Term
Extensor Hallucis Brevis: Insertion
Definition
Proximal Phalanx of great toe
Term
Extensor Hallucis Brevis: Actions
Definition
Extends great toe
Term
Extensor Hallucis Longus: Innervation
Definition
Lateral terminal branch of peroneal nerve
Term
Extensor Hallucis Longus: Blood Supply
Definition
Dorsalis Pedis Artery
Term
Extensor Hallucis Longus: notes
Definition
Part of Extensor digitorum brevis
Term
Muscles of Plantar Compartment of Foot: Actions
Definition
Help maintain balance/support arches of foot
Term
Innervation of the Muscles of Plantar Compartment of foot
Definition
Lateral and medial Plantar nerves
Term
Muscles of Plantar Compartment of Foot: Blood Supply
Definition
Medial and lateral plantar arteries (from posterior tibial artery)
Term
Muscles of 1st Layer Plantar Compartment of Foot
Definition
Abductor Hallucis
Flexor Digitorum brevis
Abductor Digiti Minimi
Term
Abductor hallucis: origin
Definition
Tuberosity of Calcaneous
Term
Abductor Hallucis: Insertion
Definition
Base of 1st proximal phalanx
Term
Abductor Hallucis: Action
Definition
Abducts great toe
Term
Abductor Hallucis: Innervation
Definition
Medial Plantar nerve
Term
Abductor Hallucis: Blood supply
Definition
Medial and Lateral Plantar arteries
Term
Flexor digitorum brevis: Origin
Definition
Tuberosity of Calcaneous
Term
Flexor digitorum brevis: Insertion
Definition
Middle phalanx of lateral 4 toes
Term
Flexor digitorum brevis: Actions
Definition
Flexes digits 2-5
Term
Flexor digitorum brevis: Innervation
Definition
Medial plantar nerve
Term
Flexor digitorum brevis: Blood supply
Definition
Medial and lateral plantar artery
Term
Flexor digitorum brevis: Notes
Definition
Deep to plantar aponeurosis
Term
Abductor digiti minimi: Origin
Definition
Tuberosity of calcaneus
Term
Abductor digiti minimi: Insertion
Definition
Base of 5th proximal phalanx
Term
Abductor digiti minimi: Actions
Definition
Abducts 5th digit
Term
Abductor digiti minimi: Innervation
Definition
Lateral plantar nerve
Term
Abductor digiti minimi: Blood supply
Definition
Medial and lateral plantar artery
Term
Muscles of the 2nd Layer of the Foot
Definition
Quadratus plantae (2 heads)
Lumbricals (4)
Flexor digitorum longus
Flexor hallucis longus
Term
Quadratus plantae: Origin
Definition
Calcaneus
Term
Quadratus plantae: Insertion
Definition
Tendon of flexor digitorum longus
Term
Quadratus plantae: Action
Definition
Assists flexor digitorum in flexing digits 2-5
Maintains tension on tendon
Term
Quadratus plantae: Innervation
Definition
Lateral Plantar nerve
Term
Quadratus plantae: Blood supply
Definition
Medial and lateral plantar arteries
Term
Lumbricals: Origin
Definition
Tendon of flexor digitorum longus
Term
Lumbricals: Insertion
Definition
Flexor sheath of lateral 4 toes
Term
Lumbricals: Actions
Definition
Flex MP joints
Extend IP joints
Term
Lumbricals: Innervation
Definition
1 -> Medial plantar nerve
2-4 -> Lateral plantar nerve
Term
Muscles of the 3rd layer of foot
Definition
Flexor hallucis brevis
Adductor hallucis (oblique and transverse head)
Flexor digiti minimi brevis
Term
Flexor hallucis brevis: Origin
Definition
Cuboid
Term
Flexor hallucis brevis: Insertion
Definition
Base 1st proximal phalanx
Term
Flexor hallucis brevis: Action
Definition
Flex great toe
Term
Flexor hallucis brevis: Innervation
Definition
Medial plantar nerve
Term
Flexor hallucis brevis: Blood supply
Definition
Medial and lateral plantar arteries
Term
Flexor hallucis brevis: Notes
Definition
Tendon goes to sesamoid bone
Term
Adductor Hallucis (Oblique Head): Origin
Definition
Base of met 2-4
Term
Adductor Hallucis (Transverse Head): Origin
Definition
MP joint ligaments
Term
Adductor Hallucis: Insertion
Definition
Base 1st proximal phalanx
Term
Adductor Hallucis: Action
Definition
Adducts great toe
Term
Adductor Hallucis: Innervation
Definition
Lateral plantar nerve
Term
Adductor Hallucis: Blood Supply
Definition
Medial and lateral plantar arteries
Term
Flexor digiti minimi brevis: Origin
Definition
Base of 5th metatarsal
Term
Flexor digiti minimi brevis: Insertion
Definition
5th proximal phalanx
Term
Flexor digiti minimi brevis: Action
Definition
Flexes digit 5
Term
Flexor digiti minimi brevis: Innervation
Definition
Lateral Plantar nerve
Term
Flexor digiti minimi brevis: Blood supply
Definition
Medial and lateral plantar arteries
Term
4th Muscle Layer of the Foot
Definition
Plantar interossei (3)
Dorsal interossei (4)
Peroneius longus tendon
Tibialis posterior tendon
Term
Plantar interossei: Origin
Definition
Base metatarsals 3-5
Term
Plantar interossei: Insertion
Definition
Medial side of base of proximal phalanx toes 3-5
Term
Plantar interossei: Actions
Definition
Adduct digits 3-5
Term
Plantar interossei: Innervation
Definition
Lateral plantar nerve
Term
Plantar interossei: Blood supply
Definition
Medial and lateral plantar arteries
Term
Dorsal interossei: Origin
Definition
Adjacent sides 1-5 metatarsals
Term
Dorsal interossei: Insertion
Definition
Proximal phalanx toes 2-4
Term
Dorsal interossei: Actions
Definition
Abducts digits 2-4
Term
Dorsal interossei: Innervation
Definition
Lateral plantar nerve
Term
Dorsal interossei: Blood Supply
Definition
Medial and Lateral Plantar arteries
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