skeletal system

Question 1

functions of skeleton

Answer 1

support, protection, allow movement, storage, blood cell formation

Question 2

classification of bones

Answer 2

short, long, flat, and irregular

Question 3

sheet of irregular, dense fibrous connective tissue continuous with the ligaments. covers the shaft and part of the heads of a long bone

Answer 3

periosteum

Question 4

smooth cap of hyaline cartilage found where the bone articulates (forms a joint) with another bone

Answer 4

articular cartilage

Question 5

whole central shaft of the long bone

Answer 5

diaphysis

Question 6

“heads” of a long bone, one proximal to the diaphysis and one distal

Answer 6

epiphysis

Question 7

actually a separate organ; fibrous straps that hold bones together

Answer 7

ligament

Question 8

space within the center of the diaphysis; walls surrounding the space are made of both cancellous and compact bone. in adults, it generally contains yellow bone marrow

Answer 8

medullary cavity

Question 9

thin epithelial membrane that lines the medullary cavity

Answer 9

endosteum

Question 10

spongy bone; soft tissue in its spaces is often red bone marrow

Answer 10

cancellous bone

Question 11

bones are remodeled continually in response to changes in two factors:

Answer 11

(1) calcium ion level in the blood
(2) the pull of gravity and muscles on the skeleton

Question 12

stages of bone repair

Answer 12

hematoma forms
fibrocartilage callus forms
bony callus forms
bone remodeling occurs

Question 13

axial skeleton

Answer 13

skull, thoracic cage, vertebral column

Question 14

two sets of bones in the skull

Answer 14

cranium and facial bones

Question 15

sutures of the skull

Answer 15

coronal, squamous, sagittal, lambdoid