Cell Growth – Anatomy Quiz 5

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Cell Growth – Anatomy Quiz 5

The key terms of Anatomy Quiz include, Bone, Matrix, Cartilage, Cell, Fibrous, Joint, Compact, Growth.


What would be the effect on bone growth of insufficient dietary calcium?

The matrix would be softer.


What are the matrix rings of compact bone that surround the central canal of each osteon?

Concentric lamellae


In compact bone, ___________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes.

canaliculi


Compact bone:

is composed of tubular units called osteons.


Which is not correct about spongy bone?

It is composed of tubular units called osteons.


Spongy bone:

forms diploe in the cranial bones.


Severe anemia may trigger an adaptive conversion of:

yellow marrow to red marrow.


Which type of cell produces new bone tissue by secreting matrix?

Osteoblasts


Bone cells called __________ break down bone by secreting hydrochloric acid and enzymes that dissolve the matrix.

osteoclasts


During appositional growth of cartilage, the cells that produce the matrix are the:

chondroblasts.


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.

Correct Answers
c: Stem cells undergo mitosis.
d: Committed cells differentiate into chondroblasts.
a: New matrix is produced and secreted.
b: Chondrocytes differentiate, each in its own lacuna


Interstitial growth of cartilage increases its ______ and occurs in the _______ region of the cartilage.

length, internal


Which affects osteoblast and osteoclast activity?

Gravity
Mechanical stress
Calcitonin and parathyroid hormone levels
Blood calcium level
All of the choices are correctcorrect


As the bone matrix calcifies and the secreting cells become walled in:

osteoblasts become osteocytes.


What gives bone its flexibility?

Collagen fibers


Osteoid is the:

organic part of the bone matrix that gives it tensile strength.


What would be the effect on bone growth of insufficient dietary calcium?

The matrix would be softer.


What are the matrix rings of compact bone that surround the central canal of each osteon?

Concentric lamellae


In compact bone, ___________ connect adjacent lacunae, thereby providing pathways for nutrients and other materials to pass between osteocytes.

canaliculi


Compact bone:

is composed of tubular units called osteons.


Which is not correct about spongy bone?

It is composed of tubular units called osteons.


Spongy bone:

forms diploe in the cranial bones.