Ch. 8 Flashcards Preview

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Flashcards in Ch. 8 Deck (15):
1

purpose of pectoral girdle

attaches upper limbs to trunk

2

purpose of pelvic girdle

attaches lower limbs to trunk

3

what structures comprise the pectoral girdle

clavicle and scapula

4

which is the only structure that articulates wit the axial skeleton

only the clavicle

5

the socket of the shoulder joint (glenoid cavity) is shallow and is good for what purpose?

good for flexibility, bad for stability

6

what are the 3 main functions of the clavicles

provide attachment for muscles, hold scapulae and arm laterally, transmit compression forces from upper limbs to axial skeleton

7

what section of the ribs is the scapulae located

between ribs 2-7

8

how many bones make up each upper limb

30

9

what region of the upper limb is the arm

between shoulder and elbow

10

what is the only bone of the arm

humerus

11

what bones does the humerus articulate with

scapula at the shoulder, radius and ulna at the elbow

12

what bones make up the forearm

radius and ulna

13

what does the proximal and distal ends of the radius and ulna articulate with

proximal ends articulate w/ humerus, distal ends articulate with carpals, as well as each other

14

at what point does the radius and ulna articulate with each other

proximal and distal radioulnar joints

15

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