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33 terms

Upper extremity

upper extremity
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scapula
aka shoulder blade
clavicle
"s" shaped bone, aka collarbone

articulates w/manubrium of the sternum on medial end
articulates w/acromion process of scapula on lateral end
pectoral girdle
scapula and clavicle
acromion process
(ah-CRO-me-on)
scapula
broad, flat process at the end of the scapular spine. articulates w/clavicle
coracoid process
(COR-uh-coyd)
scapula
an attachment point for some of the muscles
scapular spine
scapula

on the posterior surface is a ridge called the spine of the scapula
vertebral margin of scapula/medial margin
edge nearest the vertebral column. the straighter edge
axillary margin of scapula/lateral margin
edge farthest from the vertebral column. curved edge
glenoid cavity
scapula

upper lateral edge. articulates w/head of the humerus (the hole for the humerus)
humerus
bone of the upper arm
head of humerus
smooth, rounded end that articulates w/the glenoid cavity of the scapula to form the shoulder joint
greater tubercle
larger projection on the proximal end of the humerus that serve as attachment sites for the muscles of the rotator cuff.

found on the proximal lateral surface of the humerus
lessor tubercle
smaller projection on the proximal end of the humerus that serve as attachment sites for the muscles of the rotator cuff.

found on the proximal ANTERIOR surface of the humerus
deltoid tuberosity
a roughened process on the lateral surface about mid-shaft of the humerus
lateral epicondyle
above the capitulum is a knob-like projection similar to the one above the trochlea

several extensor muscles of the forearm attach to this epicondyle
capitulum
(KAHPICH-uhlum)
a rounded process on the lateral distal surface of the humerus

this process articulates w/the head of the radius
medial epicondyle
a knob-like projection located above the trochlea
trochlea
(TROW-klee-ah)
the grooved process on the medial distal surface of the humerus that articulates w/the ulna
coronoid fossa
(CAW-rahnoyd)
a depression on the anterior surface of the humerus, superior to the trochlea (smaller indentation)
olecranon fossa
(ul-LEC-rah-non)
depression on the posterior distal surface of the humerus (larger indentation)
ulna
medial bone in the forearm when arm is in anatomical position

articulates proximally witht he trochlea of the humerus and the head of the radius and distally w/the ulnar notch of the radius
olecranon process
(ul-LEC-rah-non)
the posterior proximal end of the ulna

fits into the olecranon fossa of the humerus when the forearm is extended
coronoid process
(CAW-rahnoyd)
on the anterior proximal end of the ulna.

fits into the coronoid fossa of the humberus when the forearm is flexed
radial notch
on the lateral proximal end of the ulna

allows the head of the radius to rest against the ulna
head of ulna
on the distal end of the ulna. a rounded structure that articulates w/the radius
styloid process (stylus) of ulna
a small pointed projection on the medial distal end of the ulna

this is the bump that can be palpated on the medial surface of the wrist
radius
the bone on the lateral side of the forearm
head of the radius
the rounded proximal end of the radius that articulates w/the ulna
radial tuberosity
a roughened (pointed) area on the anteromedial surface of the radius
styloid process (stylus) of radius
pointed projection on the lateral surface of the distal end of the radius
carpal bones
bones of the wrist
metacarpal
bones of the palm of the hand
phalanges
the bones of the fingers