upper body muscles exam 2

Question 1

Muscles that move the scapula/clavicle and main function (posterior and anterior)

Answer 1

muscles that move the scapula/clavicle

posterior:
trapezius (OIA)
rhomboid major (smaller strip)
rhomboid minor (larger strip connecting spine to scapula)
levator scapulae (back of mandible to scapula)

anterior:
serratus anterior (serrated looking muscles on lateral side of ribs)
pectoralis minor (side of pecs)

Question 2

muscles of the glenohumeral joint and main function (superficial and deep)

Answer 2

Muscles that move the arm

superficial:
latissimus dorsi (OIA)
(connects to upper humerus maybe a tuberosity)
deltoid (OIA)
teres major
(tucks in between latissimus and anterior deltoid)
pectoralis major (OIA)

Deep:
Supraspinatus (above spine of scapula)
Infraspinatus (below spine of scapula)
Teres Minor below infraspinatus)
Subscapularis on back on scapula)
Coracobrachialis (from coracoid proces to distal humerus)

Question 3

Muscles of the Elbow Joint and main function (anterior and posterior)

Answer 3

muscles that flex the forearm (radius/ulna)

Anterior(flexors):
Biceps Brachii (long and short) (OIA)
(long head is more lateral, short head is more anterior)
Brachialis
(under short head of biceps brachii)
Brachioradialis
(under long head of biceps brachii)

Posterior(extendors):
Triceps Brachii (long, lat, medial)
(long head is more medial, lateral head lateral, medial head is medial and proximal)
Anconeus (on elbow joint)

Question 4

muscles of the rotator cuff

Answer 4

SITS
supraspinatus
infraspinatus
teres minor
subscapularis

Question 5

muscles of the lower arm that rotate the forearm (Proximal and distal)

Answer 5

muscles that rotate the forearm

Proximal:
pronator teres (goes from medial epicondyle of humerus to body of radius)
supinator (from lat epidcondyle to body of rad)

distal:
pronator quadratus (wraps around wrist)

Question 6

muscles of the lower arm that move the wrist/hand/fingers

Answer 6

Anterior:
-flexor carpi radialis (least medial)
-palmaris longus (2nd most medial)
-flexor digitorum superficialis (forearm underneath brochioradialus)
-flexor carpi unlaris (most medial)

Posterior:
-Extensor Carpi
Radialus (longus and brevis)
-Extensor pollicis brevis (most proximal and lateral)
-extensor digitorum (connects to 3 digits at proximal end)
-extensor digiti minimi (deeper, connects to pinky)
-extensor carpi ulnaris (superficial, connects to pinky)

-abductor pollicus longus (most proximal, connects to thumb)

Question 7

muscles of the hip joint and main function (internal and medial)

Answer 7

muscles that move the thigh(femur)

Internal:
Iliopsoas (OAI)
-iliacus
-psoas major

Medial (adductors):
-Pectineus (connects from pelvic brim to humerus. above adductors)
-adductor longus (inferior)
-adductor brevis (superior)
-adductor magnus (largest, behind longus and brevis)
-gracilis

-sartoris (goes from anterior superior illiac spine to medial condyle of tibia)

Question 8

muscles of the hip joint (lateral and posterior)

Answer 8

muscles that move the thigh

Superficial:
-gluteus maximus (OIA)
-gluteus medius (right abve/under maximus, attached to iliac crest)
-tensor fasciae latae
(on very lat side of glut med)

Deep:
-Gluteus minimus (deepest to max and min)
-piriformis (greater trochanter to sacrum)
-superior gemellus (superior to obt internus)
-obturator internus (connects to obturator foramen)
-interior gemellus (below obturator)
-quadratus femoris (intertrochanteric crest to ischioppubic ramus)

Question 9

Muscles of the knee joint and function (anterior and posterior)

Answer 9

Anterior thigh (quads)
-rectus femoris (OIA)
-vastus lateralus (lat side of rect fem)
-vastus medialis (med side)
-vastus intermedius (deep to rectus femoris)

Posterior thigh (hamstrings)
-biceps femoris (next to semitendon/membranosis)
-semitendinosus (connects to ischial tuberosity, superficial to membranosis)
-semimenbranosis (connects to isch tuberosity, deep to tendinosis)

Question 10

muscles of the lower leg

Answer 10

move the ankle and toes