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MAK 111 - Muscle Group 2 - Origins, Insertions & Actions
Flashcards & Quiz for MAK 111, Muscle Group 2 (from PowerPoint Presentation 3), Origins Insertions & Actions
66
Anatomy
Undergraduate 1
01/18/2011

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Term
External Obliques (Origin)
Definition
Lower 8 ribs, external surface
Term
External Obliques .(Insertion)
Definition
Abdominal aponeurosis to linea alba and anterior iliac crest
Term
External Obliques _(Action)
Definition
VERTEBRAL COLUMN: Flexion (bilateral), lateral flexion (unilateral), rotation toward opposite side; compress & support abdominal organs
Term
Gastrocnemius (Origin)
Definition
Medial Head: femur, posterior medial condyle; Lateral Head: femur, posterior lateral condyle
Term
Gastrocnemius .(Insertion)
Definition
Calcaneous, posterior surface via the Calcaneal tendon
Term
Gastrocnemius _(Action)
Definition
ANKLE: Plantarflexion (main); KNEE: Flexion
Term
Gluteus Maximus (Origin)
Definition
Posterior iliac crest, posterior sacrum & coccyx; also, sacrotuberous and sacroiliac ligaments
Term
Gluteus Maximus .(Insertion)
Definition
Gluteal tuberosity of the femur, and lateral tibial condyle via the iliotibial band
Term
Gluteus Maximus _(Action)
Definition
HIP: Extension, external rotation, abduction, adduction
Term
Hmstgs: Biceps Femoris (Origin)
Definition
Long head: Ischial tuberosity; Short head: Lateral lip of linea aspera
Term
Hmstgs: Biceps Femoris .(Insertion)
Definition
Head of fibula, lateral condyle of tibia
Term
Hmstgs: Biceps Femoris _(Action)
Definition
Hip: Extension, lateral rotation; Knee: Flexion
Term
Hmstgs: Semi-membranosus (Origin)
Definition
Ischial tuberosity
Term
Hmstgs: Semi-membranosus .(Insertion)
Definition
Posterior medial tibial condyle
Term
Hmstgs: Semi-membranosus _(Action)
Definition
Hip: Extension, medial rotation; Knee: Flexion
Term
Hmstgs: Semi-tendinosus (Origin)
Definition
Ischial tuberosity
Term
Hmstgs: Semi-tendinosus .(Insertion)
Definition
Proximal medial shaft of tibia (lays on top of semimembranosus)
Term
Hmstgs: Semi-tendinosus _(Action)
Definition
Hip: Extension, medial rotation; Knee: Flexion
Term
Internal Obliques (Origin)
Definition
Lateral inguinal ligament, iliac crest & thoracolumbar fascia
Term
Internal Obliques .(Insertion)
Definition
Cartilage of bottom 3 ribs, abdominal aponeurosis to linea alba
Term
Internal Obliques _(Action)
Definition
VERTEBRAL COLUMN: Flexion (bilateral), lateral flexion (unilateral), rotation toward same side; compress and support abdominal organs
Term
Masseter (Origin)
Definition
Zygomatic arch
Term
Masseter .(Insertion)
Definition
Angle and Ramus of the mandible
Term
Masseter _(Action)
Definition
MANDIBLE: Elevation
Term
Occipitofrontalis (Origin)
Definition
Fascia of the forehead, superior nuchal line
Term
Occipitofrontalis .(Insertion)
Definition
Galea aponeurotica
Term
Occipitofrontalis _(Action)
Definition
Elevation of eyebrows & forehead
Term
Peroneus Longus (Origin)
Definition
Proximal 2/3rd of lateral fibula
Term
Peroneus Longus .(Insertion)
Definition
First metatarsal and medial cuneiform
Term
Peroneus Longus _(Action)
Definition
ANKLE: Plantarflexion; FOOT: Eversion
Term
Platysma (Origin)
Definition
Fascia of the superior portions of the pectoralis major & deltoid
Term
Platysma .(Insertion)
Definition
Fascia of the lower face & neck
Term
Platysma _(Action)
Definition
MANDIBLE: Depression
Term
Quads: Rectus Femoris (Origin)
Definition
AIIS
Term
Quads: Rectus Femoris .(Insertion)
Definition
Patella, and tibial tuberosity via patellar ligament
Term
Quads: Rectus Femoris _(Action)
Definition
Hip: Flexion; Knee: Extension
Term
Quads: Vastus Intermedius (Origin)
Definition
Anterior and lateral shaft of the femur
Term
Quads: Vastus Intermedius .(Insertion)
Definition
Patella, and tibial tuberosity via patellar ligament
Term
Quads: Vastus Intermedius _(Action)
Definition
Knee: Extension
Term
Quads: Vastus Lateralis (Origin)
Definition
Gluteal tuberosity & lateral lip of the linea aspera
Term
Quads: Vastus Lateralis .(Insertion)
Definition
Patella, and tibial tuberosity via patellar ligament
Term
Quads: Vastus Lateralis _(Action)
Definition
Knee: Extension
Term
Quads: Vastus Medialis (Origin)
Definition
Medial lip of the linea aspera; “tear drop” muscle
Term
Quads: Vastus Medialis .(Insertion)
Definition
Patella, and tibial tuberosity via patellar ligament
Term
Quads: Vastus Medialis _(Action)
Definition
Knee: Extension
Term
Rectus Abdominis (Origin)
Definition
Pubic crest, pubic tubercle & pubic symphesis
Term
Rectus Abdominis .(Insertion)
Definition
Costal cartilage of ribs 5-7, and xiphoid process of the sternum
Term
Rectus Abdominis _(Action)
Definition
VERTEBRAL COLUMN: Flexion (main action), lateral flexion
Term
Soleus (Origin)
Definition
Soleal line, posterior surface of the tibia, & proximal posterior surface of the fibula
Term
Soleus .(Insertion)
Definition
Calcaneous, posterior surface via the Calcaneal tendon
Term
Soleus _(Action)
Definition
ANKLE: Plantarflexion
Term
Sternocleidomastoid (Origin)
Definition
Manubrium of sternum, medial 1/3 of clavicle
Term
Sternocleidomastoid .(Insertion)
Definition
Mastoid process of temporal bone, lateral ½ of superior nuchal line
Term
Sternocleidomastoid _(Action)
Definition
Head/Neck: Flexion (bilateral); lateral flexion, rotation to opposite side (unilateral)
Term
Temporalis (Origin)
Definition
Temporal fossa
Term
Temporalis .(Insertion)
Definition
Coronoid process of the mandible
Term
Temporalis _(Action)
Definition
MANDIBLE: Elevation, retraction
Term
Tensor Fasciae Latae & Illiotibial Band (Origin)
Definition
Iliac crest, just posterior to the ASIS
Term
Tensor Fasciae Latae & Illiotibial Band .(Insertion)
Definition
Lateral condyle of the tibia via the iliotibial band (IT Band)
Term
Tensor Fasciae Latae & Illiotibial Band _(Action)
Definition
HIP: Flexion, Abduction, Internal Rotation; Tenses the ITB to lock the knee during ambulation
Term
Tibialis Anterior (Origin)
Definition
Lateral condyle of the tibia, proximal half of tibia, and interosseous membrane
Term
Tibialis Anterior .(Insertion)
Definition
Medial cuneiform, and base of first metatarsal
Term
Tibialis Anterior _(Action)
Definition
ANKLE: Dorsiflexion; FOOT: Inversion
Term
Transverse Abdominis (Origin)
Definition
Lateral inguinal ligament, iliac crest, thoracolumber fascia & cartilage of lower 6 ribs
Term
Transverse Abdominis .(Insertion)
Definition
Abdominal aponeurosis to linea alba
Term
Transverse Abdominis _(Action)
Definition
Compress & support abdominal organs (main); Assist with exhalation
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