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All Muscles
Combined Sets 1-3
321
Biology
Undergraduate 1
12/04/2013

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Term
Brachialis - Origin
Definition
Anterior distal shaft of humerus
Term
Brachialis - Insertion
Definition
Ulnar tuberosity and coronoid process of ulna
Term
Brachialis - Action
Definition
Flex elbow
Term
Biceps brachii (Long head) - Origin
Definition
Glenoid cavity of scapula
Term
Biceps brachii (Long head) - Insertion
Definition
Radial tuberosity of radius
Term
Biceps brachii (Long head) - Action
Definition
Flex, supinate elbow; Flex shoulder
Term
Biceps brachii (Short head) - Origin
Definition
Coracoid process of scapula
Term
Biceps brachii (Short head) - Insertion
Definition
Radial tuberosity of radius
Term
Biceps brachii (Short head) - Action
Definition
Flex, supinate elbow; Flex shoulder
Term
Triceps brachii (Long head) - Origin
Definition
Glenoid cavity of scapula
Term
Triceps brachii (Long head) - Insertion
Definition
Olecranon process of ulna
Term
Triceps brachii (Long head) - Action
Definition
Extend elbow; Extend, adduct shoulder
Term
Triceps brachii (Lateral head) - Origin
Definition
Posterior proximal shaft of humerus
Term
Triceps brachii (Lateral head) - Insertion
Definition
Olecranon process of ulna
Term
Triceps brachii (Lateral head) - Action
Definition
Extend elbow
Term
Triceps brachii (Medial head) - Origin
Definition
Posterior shaft of humerus
Term
Triceps brachii (Medial head) - Insertion
Definition
Olecranon process of ulna
Term
Triceps brachii (Medial head) - Action
Definition
Extend elbow
Term
Brachioradialis - Origin
Definition
Lateral supracondylar ridge of humerus
Term
Brachioradialis - Insertion
Definition
Lateral radius near styloid process
Term
Brachioradialis - Action
Definition
Flex elbow
Term
Anconeus - Origin
Definition
Lateral epicondyle of humerus
Term
Anconeus - Insertion
Definition
Olecranon process and posterior shaft of ulna
Term
Anconeus - Action
Definition
Extend elbow
Term
Pronator quadratus - Origin
Definition
Anterior distal shaft of ulna
Term
Pronator quadratus - Insertion
Definition
Anterior distal shaft of radius
Term
Pronator quadratus - Action
Definition
Pronate elbow
Term
Pronator teres - Origin
Definition
Shaft of humerus near medial epicondyle; Coronoid process of ulna
Term
Pronator teres - Insertion
Definition
Lateral shaft of radius
Term
Pronator teres - Action
Definition
Pronate elbow
Term
Supinator - Origin
Definition
Lateral epicondyle of humerus; Distal ulna near radial notch
Term
Supinator - Insertion
Definition
Proximal shaft of radius
Term
Supinator - Action
Definition
Supinate elbow
Term
Pectoralis major - Origin
Definition
Medial clavicle; Lateral sternum; Costal cartilages R1 - R7; Aponeurosis of external oblique
Term
Pectoralis major - Insertion
Definition
Intertubercular sulcus of humerus
Term
Pectoralis major - Action
Definition
Flex, adduct, medially rotate shoulder
Term
Latissimus dorsi - Origin
Definition
T7 - L5; R9 - R12; Iliac crest; Thoracolumbar fascia
Term
Latissimus dorsi - Insertion
Definition
Intertubercular sulcus of humerus
Term
Latissimus dorsi - Action
Definition
Extend, adduct, medially rotate shoulder
Term
Deltoid - Origin
Definition
Acromion, spine of scapula; clavicle
Term
Deltoid - Insertion
Definition
Deltoid tuberosity of humerus
Term
Deltoid - Action
Definition
Abduct shoulder; Flex, medially rotate shoulder; Extend, laterally rotate shoulder
Term
Teres major - Origin
Definition
Inferior angle of scapula
Term
Teres major - Insertion
Definition
Intertubercular sulcus of humerus
Term
Teres major - Action
Definition
Extend, medially rotate shoulder
Term
Coracobrachialis - Origin
Definition
Coracoid process of scapula
Term
Coracobrachialis - Insertion
Definition
Medial shaft of humerus
Term
Coracobrachialis - Action
Definition
Flex, medially rotate shoulder
Term
Supraspinatus - Origin
Definition
Supraspinous fossa of scapula
Term
Supraspinatus - Insertion
Definition
Greater tubercle of humerus
Term
Supraspinatus - Action
Definition
Abduct shoulder
Term
Infraspinatus - Origin
Definition
Infraspinous fossa of scapula
Term
Infraspinatus - Insertion
Definition
Greater tubercle of humerus
Term
Infraspinatus - Action
Definition
Laterally rotate shoulder
Term
Teres minor - Origin
Definition
Lateral border and posterior surface of scapula
Term
Teres minor - Insertion
Definition
Greater tubercle of humerus
Term
Teres minor - Action
Definition
Laterally rotate shoulder
Term
Subscapularis - Origin
Definition
Subscapular fossa of scapula
Term
Subscapularis - Insertion
Definition
Lesser tubercle of humerus
Term
Subscapularis - Action
Definition
Medially rotate shoulder
Term
Pectoralis minor - Origin
Definition
Ribs 3-5 and overlying fascia
Term
Pectoralis minor - Insertion
Definition
Coracoid process of scapula
Term
Pectoralis minor - Action
Definition
Rotate, draw scapula laterally and forward; Depress shoulder
Term
Serratus anterior - Origin
Definition
Ribs
Term
Serratus anterior - Insertion
Definition
Medial border of scapula
Term
Serratus anterior - Action
Definition
Rotate, draw scapula laterally and forward; Elevate shoulder
Term
Trapezius - Origin
Definition
External occipital protuberance, medial superior nuchal line of occipital; Spinous processes of C7 - T12
Term
Trapezius - Insertion
Definition
Acromion, spine of scapula; Lateral clavicle
Term
Trapezius - Action
Definition
Elevate shoulder; Depress shoulder; Extend, laterally flex neck
Term
Levator scapulae - Origin
Definition
Transverse processes of C1 - C4
Term
Levator scapulae - Insertion
Definition
Superior angle, medial border of scapula
Term
Levator scapulae - Action
Definition
Elevate scapula; Laterally flex neck; Retract, rotate scapula; Stabilize, depress shoulder
Term
Rhomboideus minor - Origin
Definition
Spinous processes of C7 - T1
Term
Rhomboideus minor - Insertion
Definition
Medial border of scapula
Term
Rhomboideus minor - Action
Definition
Retract scapula; Stabilize shoulder
Term
Rhomboideus major - Origin
Definition
Spinous processes of T2 - T5
Term
Rhomboideus major - Insertion
Definition
Medial border of scapula
Term
Rhomboideus major - Action
Definition
Retract scapula; Stabilize shoulder
Term
Flexor carpi radialis - Origin
Definition
Medial epicondyle of humerus
Term
Flexor carpi radialis - Insertion
Definition
Bases of metacarpals II - III
Term
Flexor carpi radialis - Action
Definition
Flex wrist
Term
Flexor carpi ulnaris - Origin
Definition
Medial epicondyle of humerus; olecranon process and posterior shaft of ulna
Term
Flexor carpi ulnaris - Insertion
Definition
Carpals and metacarpal V
Term
Flexor carpi ulnaris - Action
Definition
Flex wrist
Term
Flexor digitorum superficialis - Origin
Definition
Medial epicondyle of humerus; coronoid process of ulna; superior shaft of radius
Term
Flexor digitorum superficialis - Insertion
Definition
Middle phalanges II - V
Term
Flexor digitorum superficialis - Action
Definition
Flex wrist, hand, and fingers
Term
Palamaris longus - Origin
Definition
Medial epicondyle of humerus
Term
Palmaris longus - Insertion
Definition
Flexor retinaculum; palmar aponeurosis
Term
Palmaris longus - Action
Definition
Anchor skin and fascia of palmar region
Term
Flexor digitorum profundus - Origin
Definition
Proximal shaft and coronoid process of ulna; interosseous membrane
Term
Flexor digitorum profundus - Insertion
Definition
Distal phalanges II - V
Term
Flexor digitorum profundus - Action
Definition
Flex wrist, hand, and fingers
Term
Extensor carpi radialis longus - Origin
Definition
Lateral supracondylar ridge of humerus
Term
Extensor carpi radialis longus - Insertion
Definition
Base of metacarpal II
Term
Extensor carpi radialis longus - Action
Definition
Extend wrist
Term
Extensor carpi radialis brevis - Origin
Definition
Lateral epicondyle of humerus
Term
Extensor carpi radialis brevis - Insertion
Definition
Base of metacarpal III
Term
Extensor carpi radialis brevis - Action
Definition
Extend wrist
Term
Extensor digitorum - Origin
Definition
Lateral epicondyle of humerus
Term
Extensor digitorum - Insertion
Definition
Dorsal phalanges II - V
Term
Extensor digitorum - Action
Definition
Extend wrist, hand, and fingers
Term
Extensor carpi ulnaris - Origin
Definition
Lateral epicondyle of humerus
Term
Extensor carpi ulnaris - Insertion
Definition
Base of metacarpal V
Term
Extensor carpi ulnaris - Action
Definition
Extend wrist
Term
Iliacus - Origin
Definition
Iliac crest and fossa of ilium
Term
Iliacus - Insertion
Definition
Lesser trochanter and nearby shaft of femur
Term
Iliacus - Action
Definition
Flex hip
Term
Psoas major - Origin
Definition
Bodies, intervertebral discs of T12 - L5; Transverse processes of lumbar vertebrae
Term
Psoas major - Insertion
Definition
Lesser trochanter and nearby shaft of femur
Term
Psoas major - Action
Definition
Flex hip
Term
Tensor fasciae latae - Origin
Definition
Iliac crest, anterior superior iliac spine of ilium
Term
Tensor fasciae latae - Insertion
Definition
Lateral condyle of tibia via iliotibial band
Term
Tensor fasciae latae - Action
Definition
Extend, laterally rotate knee; Abduction, medial rotation of hip
Term
Gluteus maximus - Origin
Definition
Iliac crest to posterior superior spine of ilium; Coccyx; Posterior lower sacrum; Aponeurosis of erector spinae
Term
Gluteus maximus - Insertion
Definition
Gluteal tuberosity of femur; Lateral condyle of tibia via iliotibial band
Term
Gluteus maximus - Action
Definition
Extend, abduct hip
Term
Gluteus medius - Origin
Definition
Lateral ilium between crest and acetabulum
Term
Gluteus medius - Insertion
Definition
Greater trochanter of femur
Term
Gluteus medius - Action
Definition
Abduct, medially rotate hip
Term
Gluteus minimus - Origin
Definition
Lateral ilium between crest and acetabulum
Term
Gluteus minimus - Insertion
Definition
Greater trochanter or femur
Term
Gluteus minimus - Action
Definition
Abduct, medially rotate hip
Term
Piriformis - Origin
Definition
Anterior surface of sacrum; Gluteal surface of ilium
Term
Piriformis - Insertion
Definition
Greater trochanter of femur
Term
Piriformis - Action
Definition
Laterally rotate, flex hip
Term
Quadratus femoris - Origin
Definition
Ischial tuberosity of ischium
Term
Quadratus femoris - Insertion
Definition
Intertrochanteric crest of femur
Term
Quadratus femoris - Action
Definition
Laterally rotate hip
Term
Adductor brevis - Origin
Definition
Body, inferior ramus of pubis
Term
Adductor brevis - Insertion
Definition
Linea aspera, pectineal line of femur
Term
Adductor brevis - Action
Definition
Adduct hip
Term
Adductor longus - Origin
Definition
Body, inferior ramus of pubis
Term
Adductor longus - Insertion
Definition
Linea aspera of femur
Term
Adductor longus - Action
Definition
Adduct, medially rotate, flex hip
Term
Adductor magnus - Origin
Definition
Inferior ramus of pubis; Ramus, ischial tuberosity of ischium
Term
Adductor magnus - Insertion
Definition
Linea aspera, gluteal tuberosity, medial supracondylar line of femur
Term
Adductor magnus - Action
Definition
Adduct, medially rotate, extend hip
Term
Gracilis - Origin
Definition
Body, inferior ramus of pubis; Ramus of ischium
Term
Gracilis - Insertion
Definition
Medial tibia below condyle
Term
Gracilis - Action
Definition
Flex, medially rotate knee
Term
Pectineus - Origin
Definition
Superior ramus of pubis
Term
Pectineus - Insertion
Definition
Pectineal line of femur
Term
Pectineus - Action
Definition
Flex, adduct hip
Term
Rectus femoris - Origin
Definition
Anterior inferior iliac spine of ilium; Superior margin of acetabulum
Term
Rectus femoris - Insertion
Definition
Tibial tuberosity of tibia, via patellar tendon
Term
Rectus femoris - Action
Definition
Extend knee; Flex hip
Term
Vastus lateralis - Origin
Definition
Greater trochanter, intertrochanteric line, gluteal tuberosity, linea aspera of femur
Term
Vastus lateralis - Insertion
Definition
Lateral condyle and tibial tuberosity of tibia, via patellar tendon
Term
Vastus lateralis - Action
Definition
Extend knee; Stabilize patella
Term
Vastus medialis - Origin
Definition
Intertrochanteric line, pectineal line, linea aspera, medial supracondylar line of femur
Term
Vastus medialis - Insertion
Definition
Medial condyle and tibial tuberosity of tibia, via patellar tendon
Term
Vastus medialis - Action
Definition
Extend knee; Stabilize patella
Term
Vastus intermedius - Origin
Definition
Lateral anterior shaft of femur
Term
Vastus intermedius - Insertion
Definition
Tibial tuberosity of tibia, via patellar tendon
Term
Vastus intermedius - Action
Definition
Extend knee
Term
Sartorius - Origin
Definition
Anterior superior iliac spine of ilium
Term
Sartorius - Insertion
Definition
Medial proximal shaft of tibia
Term
Sartorius - Action
Definition
Flex knee; Flex, abduct, laterally rotate hip
Term
Biceps femoris (long head) - Origin
Definition
Ischial tuberosity of ischium
Term
Biceps femoris (long head) - Insertion
Definition
Head of fibula
Term
Biceps femoris (long head) - Action
Definition
Flex, laterally rotate knee; Extend, laterally rotate hip
Term
Biceps femoris (short head) - Origin
Definition
Linea aspera, lateral supracondylar line of femur
Term
Biceps femoris (short head) - Insertion
Definition
Head of fibula
Term
Biceps femoris (short head) - Action
Definition
Flex, laterally rotate knee; Extend, laterally rotate hip
Term
Semitendinosus - Origin
Definition
Ischial tuberosity of ischium
Term
Semitendinosus - Insertion
Definition
Proximal medial shaft of tibia
Term
Semitendinosus - Action
Definition
Flex, medially rotate knee; Medially rotate hip
Term
Semimembranosus - Origin
Definition
Ischial tuberosity of ischium
Term
Semimembranosus - Insertion
Definition
Medial condyle of tibia; Lateral condyle of femur
Term
Semimembranosus - Action
Definition
Flex, medially rotate knee; Medially rotate hip
Term
Popliteus - Origin
Definition
Lateral condyle of femur
Term
Popliteus - Insertion
Definition
Proximal posterior tibia
Term
Popliteus - Action
Definition
Medially rotate knee
Term
Diaphragm - Origin
Definition
Xiphoid process of sternum, ribs, and costal cartilages 7-12, lumbar vertebrae
Term
Diaphragm - Insertion
Definition
Central tendon of diaphragm
Term
Diaphragm - Action
Definition
Inhalation
Term
External intercostals - Origin
Definition
Inferior margins of R1 - R11
Term
External intercostals - Insertion
Definition
Superior margin of next lower rib
Term
External intercostals - Action
Definition
Elevate, protract R2 - R12
Term
Internal intercostals - Origin
Definition
Superior margins and costal cartilages of R2 - R12; Margin of sternum
Term
Internal intercostals - Insertion
Definition
Inferior margin of next higher rib
Term
Internal intercostals - Action
Definition
Depress, retract R1 - R11
Term
External oblique - Origin
Definition
R5 - R12
Term
External oblique - Insertion
Definition
Anterior iliac crest of ilium; Symphysis, superior margin of pubis
Term
External oblique - Action
Definition
Compress and supports abdominal organs; Rotation of waist
Term
Internal oblique - Origin
Definition
Inguinal ligament; Iliac crest of ilium; Thoracolumbar fascia
Term
Internal oblique - Insertion
Definition
R10 - R12; Costal cartilages of R7 - R10; Pubis
Term
Internal oblique - Action
Definition
Compress and support abdominal organs; Rotation of waist
Term
Transversus abdominis - Origin
Definition
Inguinal ligament; Iliac crest of ilium; Thoracolumbar fascia; Costal cartilages of R7 - R12
Term
Transversus abdominis - Insertion
Definition
Linea alba; Pubis
Term
Transversus abdominis - Action
Definition
Compress abdomen
Term
Rectus abdominis - Origin
Definition
Symphysis, superior margin of pubis
Term
Rectus abdominis - Insertion
Definition
Xiphoid process; Costal cartilages of R5 - R7
Term
Rectus abdominis - Action
Definition
Flex lumbar vertebral column
Term
Erector spinae - Origin
Definition
Nuchal ligament; R3 - R12, thoracic and lumbar vertebrae; Sacral crest; Thoracolumbar fascia
Term
Erector spinae - Insertion
Definition
Mastoid process of temporal; Cervical and thoracic vertebrae; All ribs
Term
Erector spinae - Action
Definition
Extend, laterally flex thoracic vertebral column
Term
Semispinalis thoracis - Origin
Definition
T6 - T10
Term
Semispinalis thoracis - Insertion
Definition
C6 - T4
Term
Semispinalis thoracis - Action
Definition
Extend, rotate thoracic vertebral column
Term
Quadratus lumborum - Origin
Definition
Iliac crest of ilium; Iliolumbar ligament
Term
Quadratus lumborum - Insertion
Definition
R12; L1 - L4
Term
Quadratus lumborum - Action
Definition
Extend, laterally flex lumbar vertebral column
Term
Multifidus - Origin
Definition
C4 - L5; Posterior superior iliac spine of ilium; Sacrum
Term
Multifidus - Insertion
Definition
Laminae, spinous processes of superior vertebrae
Term
Multifidus - Action
Definition
Stabilize adjacent vertebrae
Term
Fibularis tertius - Origin
Definition
Medial lower shaft of fibula; Interosseous membrane
Term
Fibularis tertius - Insertion
Definition
Metatarsal V
Term
Fibularis tertius - Action
Definition
Dorsiflex, evert ankle
Term
Extensor digitorum longus - Origin
Definition
Lateral condyle of tibia; Shaft of fibula; Interosseous membrane
Term
Extensor digitorum longus - Insertion
Definition
Middle and distal phalanges II - V
Term
Extensor digitorum longus - Action
Definition
Extend toes; Dorsiflex ankle
Term
Extensor hallucis longus - Origin
Definition
Anterior middle shaft of fibula
Term
Extensor hallucis longus - Insertion
Definition
Distal phalanx I
Term
Extensor hallucis longus - Action
Definition
Extend hallux; Dorsiflex ankle
Term
Tibialis anterior - Origin
Definition
Lateral condyle, proximal lateral shaft of tibia
Term
Tibialis anterior - Insertion
Definition
Medial tarsal; metatarsal I
Term
Tibialis anterior - Action
Definition
Dorsiflex, invert ankle
Term
Gastrocnemius - Origin
Definition
Condyles, popliteal surface, lateral supracondylar line of femur
Term
Gastrocnemius - Insertion
Definition
Calcaneus
Term
Gastrocnemius - Action
Definition
Plantar flex ankle; Flex knee
Term
Soleus - Origin
Definition
Head, proximal shaft of fibula; Middle shaft of tibia
Term
Soleus - Insertion
Definition
Calcaneus
Term
Soleus - Action
Definition
Plantar flex ankle
Term
Plantaris - Origin
Definition
Lateral supracondylar line of femur
Term
Plantaris - Insertion
Definition
Calcaneus
Term
Plantaris - Action
Definition
Plantar flex ankle; Flex knee
Term
Flexor digitorum longus - Origin
Definition
Posterior shaft of tibia
Term
Flexor digitorum longus - Insertion
Definition
Distal phalanges II - V
Term
Flexor digitorum longus - Action
Definition
Flex toes II - V
Term
Flexor hallucis longus - Origin
Definition
Distal shaft of fibula; Interosseous membrane
Term
Flexor hallucis longus - Insertion
Definition
Distal phalanx I
Term
Flexor hallucis longus - Action
Definition
Flex hallux
Term
Tibialis posterior - Origin
Definition
Proximal posterior shaft of tibia and fibula; Interosseous membrane
Term
Tibialis posterior - Insertion
Definition
Tarsals; Metatarsals II - V
Term
Tibialis posterior - Action
Definition
Invert, plantar flex, pronate ankle
Term
Fibularis brevis - Origin
Definition
Distal lateral shaft of fibula
Term
Fibularis brevis - Insertion
Definition
Base of metatarsal V
Term
Fibularis brevis - Action
Definition
Evert ankle
Term
Fibularis longus - Origin
Definition
Head, proximal lateral shaft of fibula
Term
Fibularis longus - Insertion
Definition
Medial tarsal; Metatarsal I
Term
Fibularis longus - Action
Definition
Evert, plantar flex ankle
Term
Sternocleidomastoid - Origin
Definition
Manubrium of sternum; Medial clavicle
Term
Sternocleidomastoid - Insertion
Definition
Mastoid process of temporal; Lateral superior nuchal line of occipital
Term
Sternocleidomastoid - Action
Definition
Rotate, tilt head; Flex neck
Term
Splenius capitis - Origin
Definition
Inferior nuchal ligament; Spinous processes of C7 - T6
Term
Splenius capitis - Insertion
Definition
Mastoid process of temporal; Between nuchal lines of occipital; C1 - C3
Term
Splenius capitis - Action
Definition
Laterally flex, rotate neck; Extend neck
Term
Semispinalis capitis - Origin
Definition
Articular processes of C4 - C7 and transverse processes of T1 - T6
Term
Semispinalis capitis - Insertion
Definition
Between nuchal lines of occipital; Spinous processes of C2 - C5
Term
Semispinalis capitis - Action
Definition
Rotate neck; Extend neck
Term
Longissimus capitis - Origin
Definition
Articular processes of C4 - C7; Transverse processes of T1 - T5
Term
Longissimus capitis - Insertion
Definition
Mastoid process
Term
Longissimus capitis - Action
Definition
Laterally flex, rotate neck; Extend neck
Term
Genioglossus - Origin
Definition
Mental spine of mandible
Term
Genioglossus - Insertion
Definition
Inferior surface of tongue
Term
Genioglossus - Action
Definition
Draw tongue laterally; Depress, protrude tongue
Term
Hyoglossus - Origin
Definition
Body, greater horn of hyoid
Term
Hyoglossus - Insertion
Definition
Lateral, inferior tongue
Term
Hyoglossus - Action
Definition
Depress tongue
Term
Temporalis - Origin
Definition
Temporal lines, temporal fossa of cranium
Term
Temporalis - Insertion
Definition
Coronoid process, anterior ramus of mandible
Term
Temporalis - Action
Definition
Elevate, retract, lateral/medial excursion of mandible
Term
Masseter - Origin
Definition
Zygomatic arch
Term
Masseter - Insertion
Definition
Lateral ramus, angle of mandible
Term
Masseter - Action
Definition
Elevate mandible
Term
Digastric: Posterior belly - Origin
Definition
Mastoid notch of temporal bone
Term
Digastric: Posterior belly - Insertion
Definition
Hyoid via fascial sling
Term
Digastric: Posterior belly - Action
Definition
Depress mandible; Elevate hyoid
Term
Digastric: Anterior belly - Origin
Definition
Digastric fossa of mandible
Term
Digastric: Anterior belly - Insertion
Definition
Hyoid via fascial sling
Term
Digastric: Anterior belly - Action
Definition
Depress mandible; Elevate hyoid
Term
Geniohyoid - Origin
Definition
Mental spine of mandible
Term
Geniohyoid - Insertion
Definition
Hyoid
Term
Geniohyoid - Action
Definition
Depress mandible; Elevate, protract hyoid
Term
Myohyoid - Origin
Definition
Mylohyoid line of mandible
Term
Myohyoid - Insertion
Definition
Hyoid
Term
Myohyoid - Action
Definition
Elevate floor of mouth
Term
Stylohyoid - Origin
Definition
Styloid process of temporal bone
Term
Stylohyoid - Insertion
Definition
Hyoid
Term
Stylohyoid - Action
Definition
Elevate, retract hyoid
Term
Omohyoid - Origin
Definition
Superior border of scapula
Term
Omohyoid - Insertion
Definition
Hyoid
Term
Omohyoid - Action
Definition
Depress hyoid
Term
Sternohyoid - Origin
Definition
Manubrium of sternum; Medial clavicle
Term
Sternohyoid - Insertion
Definition
Hyoid
Term
Sternohyoid - Action
Definition
Depress hyoid
Term
Thyrohyoid - Origin
Definition
Thyroid cartilage of larynx
Term
Thyrohyoid - Insertion
Definition
Hyoid
Term
Thyrohyoid - Action
Definition
Depress hyoid; Elevate larynx
Term
Sternothyroid - Origin
Definition
Manubrium of sternum; Costal cartilage of R1
Term
Sternothyroid - Insertion
Definition
Thyroid cartilage of larynx
Term
Sternothyroid - Action
Definition
Depress larynx
Term
Frontalis - Origin
Definition
Galea aponeurotica
Term
Frontalis - Insertion
Definition
Subcutaneous tissue of eyebrows
Term
Frontalis - Action
Definition
Elevate eyebrows; Draw scalp forward
Term
Occipitalis - Origin
Definition
Superior nuchal line of occipital; Temporal bone
Term
Occipitalis - Insertion
Definition
Galea aponeurotica
Term
Occipitalis - Action
Definition
Retract scalp
Term
Orbicularis oculi - Origin
Definition
Lacrimal bone; Adjacent frontal bone and maxilla
Term
Orbicularis oculi - Insertion
Definition
Upper and lower eyelids; Skin around margin of orbit
Term
Orbicularis oculi - Action
Definition
Close eyes
Term
Orbicularis oris - Origin
Definition
Modiolus of mouth
Term
Orbicularis oris - Insertion
Definition
Submucosa, dermis of lips
Term
Orbicularis oris - Action
Definition
Close, protrude lips
Term
Zygomaticus major - Origin
Definition
Anterior zygomatic bone
Term
Zygomaticus major - Insertion
Definition
Superolateral angle of mouth
Term
Zygomaticus major - Action
Definition
Draw angle of mouth upward and laterally
Term
Risorius - Origin
Definition
Zygomatic arch
Term
Risorius - Insertion
Definition
Modiolus of mouth
Term
Risorius - Action
Definition
Draw angle of mouth laterally
Term
Mentalis - Origin
Definition
Mandible near inferior incisors
Term
Mentalis - Insertion
Definition
Skin of chin
Term
Mentalis - Action
Definition
Elevate, protrude lower lip
Term
Buccinator - Origin
Definition
Lateral alveolar processes on mandible and maxilla
Term
Buccinator - Insertion
Definition
Orbicularis oris; Submucosa of cheek and lips
Term
Buccinator - Action
Definition
Compress cheek against teeth and gums; Retract cheek from teeth
Term
Platysma - Origin
Definition
Fascia of deltoid and pectoralis major
Term
Platysma - Insertion
Definition
Mandible; Skin and subcutaneous tissue of lower face
Term
Platysma - Action
Definition
Draw lower lip and angle of mouth down; Open mouth widely
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