Untitled Deck Flashcards
What is the primary action of the trapezius?
Elevates the scapula
Innervated by the accessory nerve.
Which nerves innervate the pectoralis major?
Medial and lateral pectoral nerve.
What is the function of the deltoid muscle?
Abducts the humerus
Innervated by the axillary nerve.
Which rotator cuff muscle is innervated by the axillary nerve?
Teres minor.
What does the infraspinatus prevent?
Upward slippage of the humerus when the arm is at rest.
What is the primary action of the biceps brachii?
Supination of the forearm
Innervated by the musculocutaneous nerve.
What are the functions of the triceps brachii?
- Extends elbow
- adducts humerus
Innervated by the radial nerve.
What is the action of the flexor carpi radialis?
Flexes the wrist
Innervated by the median nerve.
What is the function of the extensor carpi ulnaris?
Extends the wrist
- Innervated by the posterior interosseous nerve
- located on the dorsal forearm.
What is the action of the abductor pollicis longus?
Abducts the first digit
Innervated by the posterior interosseous nerve.
What are the three gluteal muscles from superficial to deep?
- Gluteus maximus
- gluteus medius
- gluteus minimus.
What is the function of the tensor fasciae latae?
- Hip abduction
- lateral rotation of the tibia
Attached to IT tract.
What actions does the adductor longus perform?
Hip:
- adduction
- medial rotation
Innervated by the obturator nerve.
What is the action of the rectus femoris?
Acts to flex at the hip joint.
Which nerve innervates the sartorius?
Femoral nerve.
