Chapter 7, Bone Tissue Video Solutions, Anatomy and Physiology

Problem 1

Which cells have a ruffled border and secrete hydrochloric acid?
a. C cells
b. osteocytes
c. osteogenic cells
d. osteoblasts
e. osteoclasts

Carlene Jimenez

Numerade Educator

02:19

Problem 2

The marrow cavity of an adult bone may contain
a. myeloid tissue.
b. hyaline cartilage.
c. periosteum.
d. osteocytes.
e. articular cartilages.

Nicole C

Numerade Educator

00:58

Problem 3

The spurt of growth in puberty results from cell proliferation and hypertrophy in
a. the epiphysis.
b. the epiphysial line.
c. compact bone.
d. the epiphysial plate.
e. spongy bone.

Carlene Jimenez

Numerade Educator

01:26

Problem 4

Osteoclasts are most closely related, by common descent, to
a. osteoprogenitor cells.
b. osteogenic cells.
c. blood cells.
d. fibroblasts.
e. osteoblasts.

Carlene Jimenez

Numerade Educator

01:55

Problem 5

The walls between cartilage lacunae break down in the zone of
a. cell proliferation.
b. calcification.
c. reserve cartilage.
d. bone deposition.
e. cell hypertrophy.

Christina Vrettakos

Numerade Educator

00:55

Which of these is not an effect of PTH?
a. rise in blood phosphate level
b. reduction of calcium excretion
c. increased intestinal calcium absorption
d. increased number of osteoclasts
e. increased calcitriol synthesis

Joanna Quigley

Numerade Educator

01:24

Problem 7

A child jumps to the ground from the top of a playground "jungle gym." His leg bones do not shatter mainly because they contain
a. an abundance of glycosaminoglycans.
b. young, resilient osteocytes.
c. an abundance of calcium phosphate.
d. collagen fibers.
e. hydroxyapatite crystals.