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Anatomy QII
Appendicular Muscles
| Question | Answer |
|---|---|
| rounded muscle mass of the shoulder | deltoid |
| insertion of the deltoid | deltoid tuberosity of the humerus |
| action: flexes, rotates, and abducts the arm | deltoid |
| muscle of the shoulder | teres major |
| action: adducts and rotates the arm | teres major |
| muscle group that rotates the arm and inserts on the humerus | rotator cuff muscles |
| four muscles of the rotator cuff | supraspinatus, infraspinatus, teres minor, subscapularis |
| two-headed muscle of the anterior arm | biceps brachii |
| action: forearm flexion | biceps brachii |
| muscle of the anterior arm | brachialis |
| action: forearm flexion | brachialis |
| muscle of the posterior arm | triceps brachii |
| action: forearm extension | triceps brachii |
| muscle of the anterior forearm, action: wrist flexion | flexor carpi radialis |
| muscle of the anterior forearm, action: wrist flexion | flexor carpi ulnaris |
| muscle of the anterior forearm, action: flexion of phalanges | flexor digitorum superficialis |
| muscle of posterior forearm, action: wrist extension | extensor carpi radialis |
| muslce of posterior forearm, action: wrist extension | extensor carpi ulnaris |
| muscle of posterior forearm, action: extension of phalanges | extensor digitorum superficialis |
| forearm muscle, flexes forearm | brachioradialis |
| forearm muscle, supination | supinator |
| largest and most superficial of the gluteal muscles | gluteus maximus |
| action: extends the thigh | gluteus maximus |
| inner thigh muscle, medial border of Scarpa's triangle, adducts thigh | adductor longus |
| medial thigh muscle, adducts thigh, when femoral artery passes through opening at inferior edge becomes the popliteal artery | adductor magnus |
| anterior thigh muscle that runs obliquely across the anterior thigh | sartorius |
| longest muscle in the body | sartorius |
| action: leg flexion and rotation | sartorius |
| "tailor's muscle" | sartorius |
| anterior thigh muscles that extend the leg, muscle group name | quadriceps |
| four muscles of the quads | rectus femoris, vastus lateralis, vastus medius, vastus intermedius |
| posterior thigh muscles that flex the leg, muscle group name | hamstring muscles |
| three hamstring muscles | biceps femoris, semitendinosus, semimembranosus |
| posterior knee, rotates the leg | popliteus |
| anterior leg | tibialis anterior |
| action: dorsiflexion | tibialis anterior |
| posterior leg, superficial calf muscle | gastrocnemius |
| inserts on the posterior calcaneus via the Achilles tendon | gastrocnemius |
| action: plantar flexion | gastrocnemius |
| posterior leg, calf muscle deep to gastrocnemius | soleus |
| action of soleus | plantar flexion |
Created by:
amyziolkowski
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