BIO 2300 STUDY EXAMS GUIDE QUESTIONS AND
ANSWERS SET A+
✔✔teres major - ✔✔closest to triceps brachii long head; adduction, medial rotation
✔✔Supraspinatus - ✔✔above spine of scapula; abduction @15 degrees
✔✔Infraspinatus - ✔✔below spine of scapula (posterior);lateral rotation
✔✔teres minor - ✔✔below deltoid, above triceps muscles ;lateral rotation
✔✔Subscapularis - ✔✔flat surface behind ribs; medial rotation
✔✔biceps brachii long head - ✔✔skinny muscle on connecting to brachialis; flexion and
supination of
✔✔biceps brachii short head - ✔✔right next to biceps brachii long head, connecting to
brachialis; flexion, supination
✔✔Coracobrachialis - ✔✔muscle closest to clavicle, upper arm and medial; flexion,
adduction, stablization,
✔✔Brachialis - ✔✔lower part of upper arm (anterior); flexion
✔✔triceps brachii long head - ✔✔most medial muscle on posterior side of upper arm;
extension
✔✔triceps brachii lateral head - ✔✔most lateral muscle of posterior upper arm;
extension
✔✔triceps brachii medial head - ✔✔directly under triceps brachii long head; extension
, ✔✔extensor retinaculum - ✔✔sheath\covering tendons of wrist (posterior)
✔✔Brachioradialis - ✔✔most lateral muscle on radial side of forearm; flexion
✔✔extensor carpi radialis longus(posterior) - ✔✔muscle on radialis side from elbow and
runs deep to index finger(doesnt cross wrist); extension, abduction
✔✔extensor carpi radialis brevis(posterior) - ✔✔muscle on radialis side from elbow and
runs deep to middle ish finger(doesnt cross wrist);extension, abduction
✔✔extensor carpi ulnaris (posterior) - ✔✔muscle on ulna side from elbow and runs
deep to pinky finger(doesnt cross wrist);extension, adduction
✔✔extensor digitorum (posterior) - ✔✔thick middle muscle going to digits 2-5; extension
of digits and wrist
✔✔extensor digiti minimi (posterior) - ✔✔long muscle from elbow that crosses over to
ulna(pinky side); extends pinky
✔✔Extensor Indicis (Posterior) - ✔✔runs deep and to index finger: extension of index
finger
✔✔abductor pollicis longus (posterior) - ✔✔biggest tendon to the thumb(runs deep),
kinda lateral; abduction
✔✔extensor pollicis brevis (posterior) - ✔✔just below abductor pollicis longus, and runs
to base of proximal phalanx of thumb; extension, abduction
✔✔extensor pollicis longus (posterior) - ✔✔1st tendon to thumb when you flex your
thumb; extension, abduction,
✔✔flexor retinaculum(anterior) - ✔✔sheath covering tendons of wrist
✔✔pronator teres(anterior) - ✔✔slanted and runs from medial epicondyle of humerus to
surface of radius; pronation, flexion,
✔✔flexor carpi radialis (anterior) - ✔✔slants from medial epicondyle of humerus to side
of index finger(doesn't cross wrist); flexion, abduction,
✔✔palmaris longus(anterior) - ✔✔long tendon to middle of wrist; flexion
✔✔flexor carpi ulnaris (anterior) - ✔✔from medial epicondyle to pinky(doesnt cross the
wrist); flexion, adduction,
ANSWERS SET A+
✔✔teres major - ✔✔closest to triceps brachii long head; adduction, medial rotation
✔✔Supraspinatus - ✔✔above spine of scapula; abduction @15 degrees
✔✔Infraspinatus - ✔✔below spine of scapula (posterior);lateral rotation
✔✔teres minor - ✔✔below deltoid, above triceps muscles ;lateral rotation
✔✔Subscapularis - ✔✔flat surface behind ribs; medial rotation
✔✔biceps brachii long head - ✔✔skinny muscle on connecting to brachialis; flexion and
supination of
✔✔biceps brachii short head - ✔✔right next to biceps brachii long head, connecting to
brachialis; flexion, supination
✔✔Coracobrachialis - ✔✔muscle closest to clavicle, upper arm and medial; flexion,
adduction, stablization,
✔✔Brachialis - ✔✔lower part of upper arm (anterior); flexion
✔✔triceps brachii long head - ✔✔most medial muscle on posterior side of upper arm;
extension
✔✔triceps brachii lateral head - ✔✔most lateral muscle of posterior upper arm;
extension
✔✔triceps brachii medial head - ✔✔directly under triceps brachii long head; extension
, ✔✔extensor retinaculum - ✔✔sheath\covering tendons of wrist (posterior)
✔✔Brachioradialis - ✔✔most lateral muscle on radial side of forearm; flexion
✔✔extensor carpi radialis longus(posterior) - ✔✔muscle on radialis side from elbow and
runs deep to index finger(doesnt cross wrist); extension, abduction
✔✔extensor carpi radialis brevis(posterior) - ✔✔muscle on radialis side from elbow and
runs deep to middle ish finger(doesnt cross wrist);extension, abduction
✔✔extensor carpi ulnaris (posterior) - ✔✔muscle on ulna side from elbow and runs
deep to pinky finger(doesnt cross wrist);extension, adduction
✔✔extensor digitorum (posterior) - ✔✔thick middle muscle going to digits 2-5; extension
of digits and wrist
✔✔extensor digiti minimi (posterior) - ✔✔long muscle from elbow that crosses over to
ulna(pinky side); extends pinky
✔✔Extensor Indicis (Posterior) - ✔✔runs deep and to index finger: extension of index
finger
✔✔abductor pollicis longus (posterior) - ✔✔biggest tendon to the thumb(runs deep),
kinda lateral; abduction
✔✔extensor pollicis brevis (posterior) - ✔✔just below abductor pollicis longus, and runs
to base of proximal phalanx of thumb; extension, abduction
✔✔extensor pollicis longus (posterior) - ✔✔1st tendon to thumb when you flex your
thumb; extension, abduction,
✔✔flexor retinaculum(anterior) - ✔✔sheath covering tendons of wrist
✔✔pronator teres(anterior) - ✔✔slanted and runs from medial epicondyle of humerus to
surface of radius; pronation, flexion,
✔✔flexor carpi radialis (anterior) - ✔✔slants from medial epicondyle of humerus to side
of index finger(doesn't cross wrist); flexion, abduction,
✔✔palmaris longus(anterior) - ✔✔long tendon to middle of wrist; flexion
✔✔flexor carpi ulnaris (anterior) - ✔✔from medial epicondyle to pinky(doesnt cross the
wrist); flexion, adduction,
