SCC Anatomy Exam 3

which border of the scapula is nearest the vertebral column?

medial border

the acromion is at the ____ edge of the spinous process

lateral

what process is located at the lateral edge of the spinous process?

acromion process

is the spine of the scapula on the posterior or anterior viewpoint?

posterior

spinous process

a large prominent ridge on the posterior side of the scapula that angels obliquely

acromion process

bulge located at the lateral edge of the spine of the scapula

coracoid process

bulge located anteriorly to the acromion process (on anterior side)

supraspinous fossa

depression found superior to the spine of the scapula

infraspinous fossa

depression found inferior to the spine of the scapula

superior angle

pointy area located superior to the supraspinous fossa and is also the most proximal edge of the scapula

inferior angle

pointy area located at the most distal aspect of the scapula

lateral border

the entire lateral edge of the scapula

medial border

the entire medial edge (nearest the vertebral column) of the scapula

glenoid cavity (fossa)

depression located at the proximal edge of the scapula at the superior edge of the lateral border (head of humerus sits in here)

suprascapular notch

notch located on the superior edge of the scapula between the coracoid process and the superior angle of the scapula but nearest coracoid process (on anterior side)

subscapular fossa

depression on the anterior side of the scapula (inferior to suprascapular notch)

body of the scapula

entire area of the scapula extending from the spine of the scapula to the inferior angle and consists of both anterior and posterior aspects of the scapula

sternal end of the clavicle

most medial edge of the clavicle which connects to the sternum

acromial end of the clavicle

most lateral edge of the clavicle which connects to the acromion of the scapula

conoid tubercle

a small bulge on the inferior edge of the clavicle nearest the acromial end

which end of the clavicle is more rounded

lateral (acromial) end

head of the humerus

proximal, rounded portion that fits into the glenoid cavity

what side is the head of the humerus on

medial

greater tubercle

a bulge directly lateral to the head of the humerus

lesser tubercle

a small bulge inferior and medial to the greater tubercle

intertubercular sulcus

vertical groove located between the greater and lesser tubercles

deltoid tuberosity

a roughened area on the lateral edge of humerus (series of bumps)

what tendon passes through the intertubercular sulcus?

tendon of the long head of the biceps brachii

what tendon is attached to the coracoid process?

tendon of the short head of the biceps brachii

capitulum

lateral condyle at the distal end of humerus

trochlea

medial condyle at the distal end of humerus

medial epicondyle of humerus

the bulge nearest to the trochlea (medial side)

lateral epicondyle of humerus

bulge nearest to the capitulum (lateral side)

which of the two condyles in the humerus is larger?

medial condyle

coronoid fossa

depression on anterior side of humerus between capitulum and trochlea

olecranon fossa

depression on posterior side of humerus between capitulum and trochlea

which of the two fossas on the humerus is deeper?

olecranon fossa

what bone makes up your elbow?

ulna

olecranon process

large rounded posterior bulge at the proximal end of the ulna

what does the olecranon process articulate with?

olecranon fossa (when arm is extended)

trochlear notch

notch on anterior aspect of ulna at proximal end

what does the trochlear notch articulate with?

trochlea of the humerus

coronoid process

inferior pointy edge of the trochlear notch

what does the coronoid process articulate with?

coronoid fossa (when the arm is flexed)

radial notch of the ulna

a small depression at the proximal, lateral edge of the ulna nearest the coronoid process of the ulna

what does the radial notch of the ulna articulate with?

head of the radius

styloid process of the ulna

a pointy process at the distal end of the ulna which can be found on the medial posterior edge of the ulna

what is the most proximal region of the radius?

head of the radius

head of the radius

very round and most proximal portion

what does the head of the radius articulate with?

capitulum

radial tuberosity

a small bulge located just a few centimeters distal and medial to the head of the radius (anterior)

dorsal radial tuberosity

a bumpy area located at the distal end of the radius on the posterior side

styloid process of the radius

a small pointy structure at the distal end and on the lateral side of the radius

proximal carpal bones

-Scaphoid (lateral)

-Lunate

-Pisiform (medial)

-Triquetrum (posterior to pisiform)

distal carpal bones

-hamate(medial)

-capitate

-trapezoid

-trapezium (lateral)

the capitate pivots with metacarpal _____?

III

metacarpal IV and V pivot with which carpal bone?

hamate

biceps brachii

superficial anterior muscle of the brachium

short head of biceps brachii

-medial head

-origin: coracoid process

-insertion: radial tuberosity

-action: flexion at elbow and shoulder

long head of biceps brachii

lateral side

brachialis

deep to biceps brachii

coracobrachialis

deep and medial to short head of biceps brachii

triceps brachii

superficial posterior muscle

long head of triceps brachii

between lateral and medial head (medial)

lateral head of triceps brachii

-lateral

-origin: proximal end of humerus

-insertion: olecranon of ulna

-action: extension at elbow

medial head of triceps brachii

lateral and anterior to long head (deep)

palmaris longus

muscle in center, anterior portion of antebrachium and tendons extend to palm

what muscle goes down the middle of your anterior antebrachium?

palmaris longus

flexor digitorum superficialis

-deep to palmaris longus

-flexes digits 2-5

flexor carpi ulnaris

medial to palmaris longus

what muscle is directly lateral to flexor carpi ulnaris?

palmaris longus

flexor carpi radialis

lateral to palmaris longus

pronator teres

lateral to proximal end of flexor carpi radialis (oblique muscle)

brachioradialis

-lateral to flexor carpi radialis

-most lateral muscle in antebrachium

what muscle is lateral to brachioradialis

none

flexor retinaculum

transverse band on carpal region (connective tissue)

which one of these is not a muscle?

flexor retinaculum

the brachioradialis is what kind of muscle?

skeletal

what is the cell type of brachioradialis?

muscle fibers

the tendons of the brachioradialis/palmaris longus are what kind of tissue type?

connective

flexor pollicis longus

-distal oblique muscle near carpal region on lateral side

-lateral to flexor digitorum superficialis

-flexes thumb

what muscles flex all of the fingers?

flexor digitorum superficialis and flexor pollicis longus

what muscle is directly superficial to flexor pollicis longus

flexor carpii radialis

pronator quadratus

-transverse muscle near carpal region

-found distal on radius and ulna

extensor digitorum

center of posterior antebrachium

extensor digiti minimi

-medial to extensor digitorum

-extends digit 5

-in between extensor digitorum and extensor carpi ulnaris

extensor carpi ulnaris

medial to extensor digiti minimi

anconeus

appears in cubital region and runs obliquely

extensor retinaculum

transverse band of connective tissue

abductor pollicis longus

-deep to extensor digitorum and runs obliquely to thumb

-most proximal of 2 oblique muscles associated with thumb

-abducts thumb

extensor pollicis brevis

-distal to the abductor pollicis longus

-shorter of 2 thumb muscles

which of your oblique thumb muscle is more distal?

extensor pollicis brevis

extensor carpi radialis brevis

lateral to the extensor digitorum

extensor carpi radialis longus

lateral to extensor carpi radialis brevis

what muscle is found directly medial to the bracioradialis on posterior antebrachium?

extensor carpi radialis longus

abductor digiti minimi

most medial muscle of hand

flexor digiti minimi

directly lateral to abductor digiti minimi

abductor pollicis brevis

most lateral muscle of the hand

flexor pollicis brevis

medial to abductor pollicis brevis

what muscle is located directly superior to the spine of the scapula?

supraspinatus