Compact Fibrous Joint – Anatomy Quiz 8
The key terms of Anatomy Quiz 8 include, Bone, Cartilage, Matrix, Cells, Spongy, Compact, Fibrous, Joint, Spaces.
Which is not correct about spongy bone?
Its spaces hold red bone marrow.
It is located deep to compact bone.
It forms diploe in the cranial bones.
It is composed of tubular units called osteons. – correct
It is located in the epiphyses of long bones.
Spongy bone:
contains no osteocytes.
has spaces filled with yellow marrow.
is composed of tubular units called osteons.
forms diploe in the cranial bones. – correct
All of the choices are correct.
Which is characteristic of cartilage connective tissue?
Gel-like ground substance
Matrix of protein fibers
Cells called chondrocytes
Avascular
All of the choices are correct – correct
Hyaline cartilage contains a ______ percentage of water; cartilage cells reside in small spaces called ________.
low, lacunae
low, canaliculi
high, lacunae – correct
high, canaliculi
Bone cells called __________ break down bone by secreting hydrochloric acid and enzymes that dissolve the matrix.
osteoprogenitor cells
osteoid cells
osteocytes
osteoclasts – correct
osteoblasts
During appositional growth of cartilage, the cells that produce the matrix are the:
chondrocytes.
osteocytes.
fibroblasts.
chondroblasts. – correct
osteoblasts.
Place the following steps in the process of appositional growth of cartilage in correct order.
a: New matrix is produced and secreted.
b: Chondrocytes differentiate, each in its own lacuna.
c: Stem cells undergo mitosis.
d: Committed cells differentiate into chondroblasts.
c. – d. – a. – b. – correct
d. – c. – b. – a.
c. – d. – b. – a.
a. – c. – b. – d.
a. – c. – d. – b.
Interstitial growth of cartilage increases its ______ and occurs in the _______ region of the cartilage.
length, internal – correct
length, peripheral
width, internal
width, peripheral
Which affects osteoblast and osteoclast activity?
Gravity
Mechanical stress
Calcitonin and parathyroid hormone levels
Blood calcium level
All of the choices are correct – correct
As the bone matrix calcifies and the secreting cells become walled in:
osteoblasts become osteocytes. – correct
osteogenic progenitors become osteoclasts.
osteoblasts become osteoclasts.
osteoclasts become osteocytes
What gives bone its flexibility?
Inorganic salts
Yellow bone marrow
Collagen fibers- correct
Trabeculae
Elastic fibers
Osteoid is the:
organic part of the bone matrix that gives it rigidity.
organic part of the bone matrix that gives it tensile strength. – correct
inorganic part of the bone matrix that gives it rigidity.
inorganic part of the bone matrix that gives it tensile strength.
What gives bone its compressional strength?
Yellow bone marrow
Reticular fibers
Inorganic salts – correct
Red bone marrow
Endosteum
If a bone is immersed in a weak acid such as vinegar for several days, its inorganic components will dissolve. What will be the result of such an experiment?
The bone will dissolve completely.
The compact bone will dissolve, leaving only the inner spongy bone.
The bone will become extremely brittle.
The bone will become soft and bendable. – correct
The spongy bone will dissolve, leaving only the outer compact bone.
What would be the effect on bone growth of insufficient dietary calcium?
There would be no effect, since the body is able to synthesize calcium.
The matrix would be softer. – correct
The bone would be less flexible.
The epiphyseal plates would ossify earlier in development.
There would be increased formation of spongy bone.
What are the matrix rings of compact bone that surround the central canal of each osteon?
Canaliculi
Concentric lamellae – correct
Circumferential lamellae
Perforating canals
Interstitial lamellae
In compact bone, ___________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes.
osteonic canals
blood vessels
lamellae
canaliculi – correct
perforating canals
Compact bone:
is located deep to spongy bone in the diaphysis.
is composed of tubular units called osteons. – correct
has a brace-like arrangement of trabeculae.
is avascular.
All of the choices are correct.
Which is not correct about spongy bone?
Its spaces hold red bone marrow.
It is located deep to compact bone.
It forms diploe in the cranial bones.
It is composed of tubular units called osteons. – correct
It is located in the epiphyses of long bones.
Spongy bone:
contains no osteocytes.
has spaces filled with yellow marrow.
is composed of tubular units called osteons.
forms diploe in the cranial bones. – correct
All of the choices are correct.
Which is characteristic of cartilage connective tissue?
Gel-like ground substance
Matrix of protein fibers
Cells called chondrocytes
Avascular
All of the choices are correct – correct
Hyaline cartilage contains a ______ percentage of water; cartilage cells reside in small spaces called ________.
low, lacunae
low, canaliculi
high, lacunae – correct
high, canaliculi