Pectoral Girdle and Upper limbs Flashcards Preview

Anatomy > Pectoral Girdle and Upper limbs > Flashcards

Flashcards in Pectoral Girdle and Upper limbs Deck (52):
1

How many bones comprise the pectoral girdle and what are they

4, scapula and clavicles

2

Glenoid cavity

lateral shallow cavity of the shoulder joint where the humerus fits

3

What does clavicle mean

small key

4

What is the only direct connection between the pectoral girdle and the axial skeleton

the clavicle

5

Epaulettes

descended from ancient segments of armor designed to protect the easily broken clavicle

6

sternoclavicular joint

The articulation of the clavicle to the sternum

7

Acromioclavicular joint (A-C joint)

The articulation of the clavicle with the acromion

8

What does acromion mean

shoulder peak

9

Conoid tubercle

on the inferior surface of the later end of the clavicle

10

What does conoid mean

small cone swelling

11

scapula

broad flat triangular bone positioned on the posterior aspect of the rib cage overlying ribs 2-7

12

Spine of scapula

prominent diagonal bony ridge on the posterior surface of the scapula

13

supraspinous fossa

above the spine of the scapula

14

infraspinous fossa

below the spine of the scapula

15

Acromion

forms the bony tip of the shoulder

16

Coracoid

inferior to the acromion, helps to stabilize the anterior portion of the shoulder joint

17

subscapular fossa

anterior surface of the scapula

18

Subcapularis

large muscle that overlies the subscapular foss

19

Greater tubercle

on the humerus, is positioned laterally and helps form the rounded contour of the shoulder

20

lesser tubercle

smaller than the greater tubercle and located more medially

21

intertubercular groove

in between the two tubercles of the humerus

22

anatomical neck

between the tubercles and the head of the humerus

23

surgical neck

narrowing of the bone immediately distal to the tubercles

24

Deltoid tuberosity

roughened area on the shaft of the humerus along its lateral mid region where the deltoid muscle attaches

25

Capitulum

lateral rounded condyle that articulates with the radius

26

What does capitulum mean

little head

27

trochlea

the medial condyle that articulates with the ulna

28

What does trochlea mean

pulley

29

Ulnar nerve

nerve in the medial epicondyle of the humerus. often called the funny bone

30

radial fossa

accommodates the head of the radius when the elbow is flexed

31

Coronoid fossa

accommodates the coronoid process of the ulna

32

Ulna

medial bone of the antebrachium

33

Radius

lateral bone of the antebrachium

34

What does radius mean

rod or spoke of wheel

35

head of the radius

on the proximal end and articulates with the capitulum of the humerus

36

Radial notch

on the proximal end of the ulna where the radius articulates with the ulna

37

Radial tuberosity

proximal end of the radius where the biceps brachii muscle attaches

38

styloid process of radius

lateral bump on the antebrachium that is confused for a wrist bone

39

What does styloid mean

resembles a pillar or post

40

Ulnar notch

on the distal end of the radius where he ulna articulates with the radius

41

Trochlear notch

interlocks with the trochlea of the humerus to form a firm hinge joint

42

Coronoid process

forms the anterior portion of the trochlear notch and fits into the coronoid fossa of the humerus

43

Olecranon

forms the posterior portion of the trochlear notch and fits into the olecranon fossa of the humerus

44

Head of ulna

on the distal end

45

interosseous membranes

dense regular connective tissue between the ulna and radius; tibia and fibula

46

median nerve

is damaged in crucifixion causing inward contraction of the thumb

47

carpal bones

wrist bones. There are 8

48

pollex

thumb

49

A-C separation

dislocation of clavicle and acromion

50

Lateral epicondylitis

(tennis elbow) strain on the muscles or tendons that attach to the lateral epicondyle

51

Medial epicondylitis

repetitive stress is applied to the medial epicondyle

52

Colles fracture

results on silver fork deformity