Appendicular Skeleton

Question 1

what does the pectoral girdle/arch contain?

Answer 1

scapula and clavicle

Question 2

clavicle

Answer 2

-attachment to muscles
-intramembranous development
-only structure articulating with axial skeleton

Question 3

scapula

Answer 3

connects laterally to humerus

Question 4

what does the brachium (arm) contain?

Answer 4

humerus

Question 5

what does the antebrachium (forearm) contain?

Answer 5

ulna (medial) and radius (lateral)

Question 6

ulna and radius

Answer 6

-olecranon is elbow
-articulates
-only radius articulates with carpals

Question 7

humerus

Answer 7

-muscle attachments
-articulations (capitulum for pronation)

Question 8

what does the hand contain?

Answer 8

carpals (8), metacarpals (5), phalanges (14)

Question 9

interosseous membrane

Answer 9

fibrous joint between radius and ulna to dissipate forces

Question 10

what does the pelvic girdle contain?

Answer 10

-sacrum
-hip (os coxae: ilium, ischium, pubis)

Question 11

functions of the lower limb

Answer 11

-supports body weight
-locomotion
-equilibrium

Question 12

what does the thigh contain?

Answer 12

femur and patella (sesamoid)

Question 13

what does the leg contain?

Answer 13

tibia (medial) and fibula (lateral)

Question 14

what does the foot contain?

Answer 14

tarsals (7), metatarsals (5), phalanges (14)

Question 15

fibula and tibia

Answer 15

-tibia holds weight
-fibula dissipates forces and muscle attachment

Question 16

how are the fingers numbered?

Answer 16

thumb (pollex) is 1 to pinky is 5

Question 17

how are the toes numbered?

Answer 17

big toe (hallux) is 1 to pinky is 5

Question 18

spina bifida

Answer 18

laminae of vertebrae not fused so spinal cord is exposed

Question 19

sternum foramen

Answer 19

4-10% of adults