Question 1

Osteogenesis imperfecta can be caused by abnormally formed

Accepted Answer

A)  hydroxyapatite.
B)  proteoglycans.
C)  collagen.
D)  osteoblasts.
E)  calcium.F) A) and B)
G) A) and C)

Question 2

What chemical causes an increase in the blood calcium level?

Accepted Answer

A)  growth hormone
B)  vitamin D
C)  sex hormones
D)  calcitonin
E)  parathyroid hormoneF) A) and E)
G) A) and D)

Question 3

The flat bones of the skull develop from

Accepted Answer

A)  fibrous connective tissue.
B)  fibrocartilage.
C)  compact bone.
D)  hyaline cartilage.
E)  areolar tissue.F) B) and C)
G) A) and E) A

Question 4

Which of the following statements regarding calcium homeostasis is true?

Accepted Answer

A)  When blood calcium levels are too low,osteoclast activity increases.
B)  Parathyroid hormone increases calcium loss from the kidney.
C)  Increased osteoblast activity increases blood calcium levels.
D)  Calcitonin elevates blood calcium levels.
E)  Parathyroid hormone inhibits osteoclast activity.F) A) and E)
G) None of the above

Question 5

Osteomyelitis causes destruction of bone tissue primarily by

Accepted Answer

A)   promoting inflammation and overstimulation of osteoclast activity.
B)   inhibiting bone marrow production of osteoclasts.
C)   suppressing the production of RANKL by osteoblasts.
D)   stimulating apoptosis in osteoclast cells.E) A) and B)
F) B) and D)

Question 6

Peter receives a blow to the front of the knee on the soccer field and collapses.The bruised bone is the ___________.

Accepted Answer

The answer of Peter receives a blow to the front...

Question 7

The radiologist informs Mathew that his fracture has not penetrated the skin,meaning Mathew has a(an)

Accepted Answer

A)  composite fracture.
B)  open fracture.
C)  irregular fracture.
D)  complicated fracture.
E)  closed fracture.F) A) and B)
G) C) and D)

Question 8

Parathyroid hormone (PTH) causes

Accepted Answer

A)  increased RANKL and decreased OPG.
B)  PTH has no effect on RANKL and OPG.
C)  increased RANKL and increased OPG.
D)  decreased RANKL and decreased OPG.
E)  decreased RANKL and increased OPG.F) A) and D)
G) B) and D)

Question 9

In which type of bone would osteons be present?

Accepted Answer

A)  compact bone
B)  spongy bone
C)  both spongy and compactD) A) and B)
E) All of the above

Question 10

A connective tissue sheath around cartilage is the

Accepted Answer

A)  periosteum.
B)  ligament.
C)  endosteum.
D)  epiphyseal line.
E)  perichondrium.F) B) and D)
G) A) and E) E

Question 11

Osteomyelitis is

Accepted Answer

A)  a disease in adults,especially women,characterized by a reduced amount of bone matrix.
B)  a disease in adults characterized by softening of bones resulting from calcium depletion.
C)  a group of genetic disorders producing very brittle bones that are easily fractured; occurs because of insufficient collagen development.
D)  a disease in children characterized by soft,bowed,and swollen bones.
E)  bone inflammation that often results from bacterial infection.F) A) and B)
G) C) and D)

Question 12

Name the process which changes the shapes of bones to adjust to bone stress,replaces old bone matrix and facilitates the repair of broken bone.

Accepted Answer

A)   bone reabsorption
B)   osteomalacia
C)   appositional bone growth
D)   bone remodelingE) None of the above
F) A) and D)

Question 13

The stem cells of osteoclasts are

Accepted Answer

A)  osteocytes.
B)  chondrocytes.
C)  monocytes.
D)  osteochondral progenitor cells.
E)  osteoclasts.F) A) and D)
G) D) and E) C

Question 14

What are the maintenance cells in bone tissue?

Accepted Answer

A)  osteochondral progenitor cells
B)  chondrocytes
C)  osteoblasts
D)  osteocytes
E)  osteoclastsF) D) and E)
G) C) and D)

Question 15

Bone remodeling may occur

Accepted Answer

A)  as bones grow.
B)  as bones adjust to stress.
C)  as fractures heal.
D)  constantly during a person's lifetime.
E)  All of these choices are correct.F) A) and E)
G) A) and B)

Question 16

The cell type that is responsible for maintaining bone once it has been formed is the

Accepted Answer

A)  osteocyte.
B)  chondrocyte.
C)  osteoblast.
D)  osteoclast.
E)  chondroblast.F) A) and B)
G) A) and C)

Question 17

Which of the following membranes covers the surface of a mature bone?

Accepted Answer

A)  perichondrium
B)  perimysium
C)  periosteum
D)  peritendineum
E)  peritoneumF) C) and D)
G) A) and B)

Question 18

Thin sheets of bone matrix are

Accepted Answer

A)  lamellae.
B)  lacunae.
C)  trabeculae.
D)  periosteum.
E)  canaliculi.F) A) and B)
G) A) and C)

Question 19

Small channels extending through the bone matrix are

Accepted Answer

A)  lacunae.
B)  lamellae.
C)  canaliculi.
D)  periosteum.
E)  trabeculae.F) D) and E)
G) A) and E)

Question 20

Interconnecting rods of bone are

Accepted Answer

A)  periosteum.
B)  trabeculae.
C)  lamellae.
D)  canaliculi.
E)  lacunae.F) A) and B)
G) A) and C)

Exam 6: Skeletal System: Bones and Bone Tissue

Osteogenesis imperfecta can be caused by abnormally formed

Correct AnswerverifiedShow Answer

What chemical causes an increase in the blood calcium level?

Correct AnswerverifiedShow Answer

The flat bones of the skull develop from

Correct AnswerverifiedA

Which of the following statements regarding calcium homeostasis is true?

Correct AnswerverifiedShow Answer

Osteomyelitis causes destruction of bone tissue primarily by

Correct AnswerverifiedShow Answer

Peter receives a blow to the front of the knee on the soccer field and collapses.The bruised bone is the ___________.

Correct AnswerverifiedShow Answer

The radiologist informs Mathew that his fracture has not penetrated the skin,meaning Mathew has a(an)

Correct AnswerverifiedShow Answer

Parathyroid hormone (PTH) causes

Correct AnswerverifiedShow Answer

In which type of bone would osteons be present?

Correct AnswerverifiedShow Answer

A connective tissue sheath around cartilage is the

Correct AnswerverifiedE

Osteomyelitis is

Correct AnswerverifiedShow Answer

Name the process which changes the shapes of bones to adjust to bone stress,replaces old bone matrix and facilitates the repair of broken bone.

Correct AnswerverifiedShow Answer

The stem cells of osteoclasts are

Correct AnswerverifiedC

What are the maintenance cells in bone tissue?

Correct AnswerverifiedShow Answer

Bone remodeling may occur

Correct AnswerverifiedShow Answer

The cell type that is responsible for maintaining bone once it has been formed is the

Correct AnswerverifiedShow Answer

Which of the following membranes covers the surface of a mature bone?

Correct AnswerverifiedShow Answer

Thin sheets of bone matrix are

Correct AnswerverifiedShow Answer

Small channels extending through the bone matrix are

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Interconnecting rods of bone are

Correct AnswerverifiedShow Answer

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A

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E

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C

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