Appendicular Skeleton

Question 1

Pectoral Girdle (4)

Answer 1

Scapulae (2)

Clavicles (2)

Question 2

Upper Limbs (60)

Answer 2

Humerus (2)
Radius (2)
Ulna (2)
Carpal bones (16)
Metacarpal bones (10)
Phalanges (28)

Question 3

Pelvic Girdle

Answer 3

Hip bones

Question 4

Lower limbs

Answer 4

Femurs (2)
Patellae (2)
Tibiae (2)
Fibulae (2)
Tarsal Bones (14)
Metatarsal Bones (10)
Phalanges (28)

Question 5

Why does an adult have less bones than a child?

Answer 5

The number of bones decrease as separate bones gradually fuse.

Question 6

Why might an adult have more bones than another adult?

Answer 6

The development of sesamoid bones: bones that form within some tendons in response to stress. Sutural bones, extra bones in the skull.

Question 7

Describe Condyle

Answer 7

Rounded bone that articulates with another bone

occipital condyles of the skull

Question 8

Describe crest

Answer 8

narrow ridge

iliac crest of pelvis

Question 9

Describe tubercle

Answer 9

small, rounded process

greater tubercle of the humerus

Question 10

Describe fossa

Answer 10

shallow, broad, or elongated basin

mandibular fossa

Question 11

Describe Sulcus

Answer 11

groove for tendon, nerve or blood vessel

Intertubercular sulcus of the humerus

Question 12

Describe Foramen

Answer 12

hole through a bone, usually round

foramen magnum of the skull