Lecture 7 Flashcards
(28 cards)
Two movers of the glenohumeral joint that have their origins on the axial skeleton
Latissimus dorsi and pectoralis major
The four muscles that make up the rotator cuff
Subscapularis, Infraspinatus, Teres Minor, Supraspinatus (SITS)
Rotator cuff muscle involved in the “wind up” of a pitch; medially rotates arm
Subscapularis
Rotator cuff muscle that starts to execute the pitch; fully abducts the arm
Supraspinatus
Rotator cuff muscles that slow the arm on the completion of the pitch; adduct and laterally rotate the arm
infraspinatus and teres minor
Biceps brachii, brachialis, and brachioradialis all ____ the forearm
flex
Triceps brachii and Anconeus ____ the forearm
extend
Two forearm muscles that pronate the forearm
pronator teres and pronator quadratus
The forearm muscle that supinates the forearm
supinator
In general, the muscles of the anterior forearm originate on the _____ and produce ____ at the wrist
medial epicondyle of the humerus; flexion
In general, the muscles of the posterior forearm originate on the ____ and produce ____ at the wrist
Lateral epicondyle of the humerus; extension
The space between the carpal bones and the flexor retinaculum is known as the _____
carpal tunnel
The thenar, hypothenar, and midpalmer group are all ____ muscles of the ____
intrinsic muscles of the hand
What is the common action of the psoas major, iliacus, and sartorius?
flexion at the hip
What is the common action of the adductor longus, adductor brevis, adductor magnus, gracilis, and pectineus?
Adduction of the thigh
Which upper lateral muscle abducts and medially roates the thigh?
Tensor Fascia Latae
The tensor fascia latae attaches inferiorly to the _____
Iliotibial tract (“IT Band”)
What is the action of the gluteus maximus, medius, and minimus?
extend and rotate the hip joint/thigh
Vastus lateral, medialis, and intermedius, sartorius, and rectus femoris are all in what compartment of the thigh?
Anterior compartment
The adductor longus, brevis, and magnus, and gracilis are in what compartment of the thigh?
Medial compartment
The biceps femoris, semitendinosus, and semimembranosus are in what compartment of the thigh?
Posterior compartment
The muscles of the posterior compartment of the thigh perform what action?
flexion of the knee
The muscles of the anterior compartment of the thigh perform what action?
Extension of the knee
Extensor digitorum longus, extensor hallucis longus, fibularis tertius, and tibialis anterior all perform what action at the ankle? What action at the toes?
Dorsiflexion; extension
