Question 1

The shaft of a long bone is called the diaphysis; the ends are called the _________.

Accepted Answer

The answer of The shaft of a long bone is...

Question 2

Which is a change in bone architecture or mass related to aging?

Accepted Answer

A)  Insufficient calcification
B)  Demineralization
C)  Reduction in the organic content of the matrix
D)  Loss of flexibility and increase in brittleness
E)  All of the choices are correct.

Question 3

Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.

Accepted Answer

A) True 
 B)False

Question 4

In adults,an area of compact bone called the epiphyseal tract replaces the epiphyseal plate.

Accepted Answer

A) True 
 B)False

Question 5

The formation of bone from a cartilaginous model is termed

Accepted Answer

A)  mesenchymal ossification.
B)  intramembranous ossification.
C)  bone remodeling.
D)  orthodontia.
E)  endochondral ossification.

Question 6

Osteolysis is

Accepted Answer

A)  demineralization due to hydrochloric acid activity.
B)  the release of calcium and phosphate from the matrix.
C)  the result of osteoclast activity.
D)  the result of enzyme activity.
E)  All of these answers are correct.

Question 7

The steps in the process of endochondral ossification are 
A: Ossification center forms in the diaphysis
B: Cartilage calcifies and a bone collar forms
C: Ossification centers form in the epiphyses
D: Bone replaces cartilage
E: Epiphyseal plates ossify
F: Cartilage model develops
The correct chronological order for these steps is

Accepted Answer

A)  f - b - c - d - a - e
B)  b - c - f - a - e - d
C)  a - c - b - d - e - f
D)  f - b - a - c - d - e
E)  a - e - c - d - b - f

Question 8

Osteoblasts are bone-forming cells; osteoclasts are bone-dissolving cells.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A)  chondrocytes.
B)  osteocytes.
C)  fibroblasts.
D)  chondroblasts.
E)  osteoblasts.

Question 10

Which affects osteoblast and osteoclast activity?

Accepted Answer

A)  Gravity
B)  Mechanical stress
C)  Calcitonin and parathyroid hormone levels
D)  Blood calcium level
E)  All of the choices are correct.

Question 11

A narrow,slit-like opening through a bone is called a _________.

Accepted Answer

The answer of A narrow,slit-like opening through a bone is...

Question 12

About 80% of the human skeleton is replaced yearly as a result of bone remodeling.

Accepted Answer

A) True 
 B)False

Question 13

When during human development does the process of ossification begin?

Accepted Answer

A)  12 weeks after birth
B)  12th-13th week of embryonic development
C)  8th-9th month of fetal development
D)  3-4 months of age
E)  10-25 years of age

Question 14

Which bone marking does not serve as an articulating surface?

Accepted Answer

A)  Head
B)  Epicondyle
C)  Condyle
D)  Facet
E)  Trochlea

Question 15

During the process of endochondral ossification,chondrocytes in the cartilage model die.Why does this occur?

Accepted Answer

A)  Blood supply to the cartilage is cut off by the developing periosteum.
B)  Canaliculi connecting adjacent chondrocyte lacunae fuse.
C)  Nutrients cannot diffuse to the chondrocytes through the calcified matrix.
D)  The developing bone collar secretes enzymes that destroy the chondrocytes.
E)  Phagocytic osteoclasts in the new bone engulf and destroy the chondrocytes.

Question 16

Which region of a growing bone contains the epiphyseal plate?

Accepted Answer

A)  Distal epiphysis
B)  Proximal epiphysis
C)  Metaphysis
D)  Diaphysis
E)  Periphysis

Question 17

Which is not involved in the process of bone repair following a fracture?

Accepted Answer

A)  Fibroblasts produce collagen fibers to connect broken pieces of bone.
B)  A fibrocartilaginous callus serves as a model for new bone growth.
C)  Osteoclasts remove excess bone from the hard callus.
D)  The fracture hematoma reorganizes to form a procallus.
E)  No exceptions; all of the choices are involved in the process of bone repair.

Question 18

Which is not true about bone remodeling?

Accepted Answer

A)  It occurs throughout life.
B)  It assists in the maintenance of calcium and phosphate levels in the body.
C)  It occurs at both the endosteal and periosteal surfaces of the bone.
D)  It occurs only at articular surfaces.
E)  It can occur in response to stress on a bone.

Question 19

The flat bones of the cranium form by intramembranous ossification.

Accepted Answer

A) True 
 B)False

Question 20

Patients with osteoporosis often suffer _________ fractures of the vertebral bodies due to loss of bone mass.

Accepted Answer

A)  spiral
B)  epiphyseal
C)  greenstick
D)  compression
E)  transverse

Exam 6: Cartilage and Bone

The formation of bone from a cartilaginous model is termed

Correct Answer
verified

Which bone marking does not serve as an articulating surface?

Correct Answer
verified

Osteolysis is

Correct Answer
verified

Which is not involved in the process of bone repair following a fracture?

Correct Answer
verified

Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.

Correct Answer
verified

Which affects osteoblast and osteoclast activity?

Correct Answer
verified

About 80% of the human skeleton is replaced yearly as a result of bone remodeling.

Correct Answer
verified

Which is not true about bone remodeling?

Correct Answer
verified

Which region of a growing bone contains the epiphyseal plate?

Correct Answer
verified

Osteoblasts are bone-forming cells; osteoclasts are bone-dissolving cells.

Correct Answer
verified

The flat bones of the cranium form by intramembranous ossification.

Correct Answer
verified

During the process of endochondral ossification,chondrocytes in the cartilage model die.Why does this occur?

Correct Answer
verified

Patients with osteoporosis often suffer _________ fractures of the vertebral bodies due to loss of bone mass.

Correct Answer
verified

When during human development does the process of ossification begin?

Correct Answer
verified

Correct Answer
verified

Which is a change in bone architecture or mass related to aging?

Correct Answer
verified

A narrow,slit-like opening through a bone is called a _________.

Correct Answer
verified

The shaft of a long bone is called the diaphysis; the ends are called the _________.

Correct Answer
verified

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

Correct Answer
verified

In adults,an area of compact bone called the epiphyseal tract replaces the epiphyseal plate.

Correct Answer
verified

Exam 6: Cartilage and Bone

The formation of bone from a cartilaginous model is termed

Correct AnswerverifiedShow Answer

Which bone marking does not serve as an articulating surface?

Correct AnswerverifiedShow Answer

Osteolysis is

Correct AnswerverifiedShow Answer

Which is not involved in the process of bone repair following a fracture?

Correct AnswerverifiedShow Answer

Endochondral ossification is a form of bone growth in which a cartilaginous model is replaced by bone.

Correct AnswerverifiedShow Answer

Which affects osteoblast and osteoclast activity?

Correct AnswerverifiedShow Answer

About 80% of the human skeleton is replaced yearly as a result of bone remodeling.

Correct AnswerverifiedShow Answer

Which is not true about bone remodeling?

Correct AnswerverifiedShow Answer

Which region of a growing bone contains the epiphyseal plate?

Correct AnswerverifiedShow Answer

Osteoblasts are bone-forming cells; osteoclasts are bone-dissolving cells.

Correct AnswerverifiedShow Answer

The flat bones of the cranium form by intramembranous ossification.

Correct AnswerverifiedShow Answer

During the process of endochondral ossification,chondrocytes in the cartilage model die.Why does this occur?

Correct AnswerverifiedShow Answer

Patients with osteoporosis often suffer _________ fractures of the vertebral bodies due to loss of bone mass.

Correct AnswerverifiedShow Answer

When during human development does the process of ossification begin?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which is a change in bone architecture or mass related to aging?

Correct AnswerverifiedShow Answer

A narrow,slit-like opening through a bone is called a _________.

Correct AnswerverifiedShow Answer

The shaft of a long bone is called the diaphysis; the ends are called the _________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In adults,an area of compact bone called the epiphyseal tract replaces the epiphyseal plate.

Correct AnswerverifiedShow Answer

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