Question 1

Bone protrudes through the skin in a fracture called __________.

Accepted Answer

A)  complete
B)  incomplete
C)  closed
D)  open
E)  displacedF) A) and D)
G) C) and E)

Question 2

Intramembranous ossification is common in children,whereas endochondral ossification is typical in young adults.

Accepted Answer

A) True 
 B)False

Question 3

A soft callus forms during ___________.

Accepted Answer

A)  endochondral ossification
B)  intramembranous ossification
C)  bone growth at the metaphysis
D)  the remodeling of bone
E)  the healing of a fractureF) A) and E)
G) B) and E)

Question 4

Which of the following is the correct sequence of events in the healing of a bone fracture?

Accepted Answer

A)  Bone remodeling  →\rarr→  soft callus formation  →\rarr→  hard callus formation  →\rarr→  hematoma formation
B)  Bone remodeling  →\rarr→  hard callus formation  →\rarr→  soft callus formation  →\rarr→  hematoma formation
C)  Hematoma formation  →\rarr→  soft callus formation  →\rarr→  hard callus formation  →\rarr→   bone remodeling
D)  Hematoma formation F →\rarr→  hard callus formation  →\rarr→  soft callus formation →\rarr→  bone remodeling
E)  Soft callus formation  →\rarr→  hard callus formation  →\rarr→  hematoma formation  →\rarr→  bone remodeling F) A) and B)
G) A) and C)

Question 5

Intramembranous ossification produces the __________.

Accepted Answer

A)  irregular bones of the vertebrae
B)  flat bones of the skull
C)  long bones of the limbs
D)  short bones of the wrist
E)  short bones of the ankleF) None of the above
G) A) and C)

Question 6

The result of blood calcium and phosphate levels being too low for normal deposition is a softness of the bones called __________ in children and __________ in adults.

Accepted Answer

A)  osteomalacia; rickets
B)  rickets; osteomalacia
C)  osteoporosis; osteomalacia
D)  osteomyelitis; osteosarcoma
E)  osteomyelitis; osteomalaciaF) A) and B)
G) All of the above

Question 7

Mature bones are remodeled throughout life via a process known as __________.

Accepted Answer

A)  intramembranous ossification
B)  endochondral ossification
C)  interstitial growth
D)  appositional growth
E)  metaphysical growthF) A) and D)
G) C) and D)

Question 8

Blood Ca2+ deficiency stimulates __________ secretion,which leads to __________.

Accepted Answer

A)  calcitonin; more urinary phosphate reabsorption
B)  calcitriol; more urinary phosphate excretion
C)  parathyroid hormone; increased osteoclast activity
D)  growth hormone; increased osteoblast activity
E)  thyroid hormone; less urinary calcium excretionF) A) and B)
G) A) and C)

Question 9

Bone-forming cells are called __________.

Accepted Answer

A)  osteogenic (osteoprogenitor)  cells
B)  osteoblasts
C)  osteoclasts
D)  osteocytes
E)  osteonsF) A) and E)
G) B) and E)

Question 10

Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.

Accepted Answer

A) True 
 B)False

Question 11

The plasma membrane of __________ have a ruffled border with many deep infoldings,whereas __________ have long,thin,fingerlike cytoplasmic processes.

Accepted Answer

A)  osteoclasts; osteocytes
B)  osteocytes; osteoclasts
C)  osteoblasts; osteoclasts
D)  osteoblasts; osteocytes
E)  osteocytes; osteogenic cellsF) B) and E)
G) C) and D)

Question 12

If a thyroid tumor secreted an excessive amount of calcitonin,we would expect ___________.

Accepted Answer

A)  an elevated level of osteoclast activity
B)  an elevated level of osteoblast activity
C)  a reduced rate of endochondral ossification
D)  a rise in blood calcium concentration
E)  increasingly brittle bonesF) B) and E)
G) All of the above

Question 13

Which of the following does not put women at risk for hypocalcemia?

Accepted Answer

A)  Lactation
B)  Pregnancy
C)  Removal of the parathyroid glands
D)  Removal of the thyroid gland
E)  Lack of exposure to UV radiationF) B) and D)
G) None of the above

Question 14

The most common bone disease is __________.

Accepted Answer

A)  osteomyelitis
B)  osteoporosis
C)  osteosarcoma
D)  osteomalacia
E)  ricketsF) None of the above
G) A) and B)

Question 15

Red bone marrow does not contain __________.

Accepted Answer

A)  myeloid tissue
B)  yellow bone marrow
C)  hemopoietic tissue
D)  white blood cells
E)  red blood cellsF) A) and E)
G) A) and D)

Question 16

A radiograph (X-ray)of a child's hand will show epiphyseal lines.

Accepted Answer

A) True 
 B)False

Question 17

Patches of fibrocartilage formed in the healing of a fracture are called __________,whereas the bony collar formed around the fracture is called __________.

Accepted Answer

A)  fracture hematoma; granulation tissue
B)  granulation tissue; soft callus
C)  fracture hematoma; hard callus
D)  granulation tissue; hard callus
E)  soft callus; hard callusF) A) and B)
G) B) and C)

Question 18

Bone elongation is a result of __________.

Accepted Answer

A)  cartilage growth
B)  muscle growth
C)  osseous tissue growth
D)  fibrous membrane addition
E)  dense irregular connective tissue additionF) A) and D)
G) B) and E)

Question 19

Which of the following is an inorganic component of the bone matrix?

Accepted Answer

A)  Proteoglycans
B)  Glycoproteins
C)  Collagen
D)  Hydroxyapatite
E)  GlycosaminoglycansF) A) and E)
G) A) and D)

Question 20

Which of the following exemplifies a positive feedback process happening in bone mineral deposition?

Accepted Answer

A)  The first few crystals that form attract more calcium and phosphate.
B)  Osteoblasts neutralize inhibitors that prevent bone resorption.
C)  Osteoclasts secrete acid phosphatase that digests collagen.
D)  Collagen is digested by enzymes and hydroxyapatite by hydrochloric acid.
E)  Solubility product is reached in the tissue fluids.F) A) and C)
G) None of the above

Exam 7: Bone Tissue

A soft callus forms during ___________.

Correct AnswerverifiedShow Answer

Osteogenic cells are bone stem cells that differentiate into osteoblasts and osteoclasts.

Correct AnswerverifiedShow Answer

Which of the following is an inorganic component of the bone matrix?

Correct AnswerverifiedShow Answer

Which of the following does not put women at risk for hypocalcemia?

Correct AnswerverifiedShow Answer

The result of blood calcium and phosphate levels being too low for normal deposition is a softness of the bones called __________ in children and __________ in adults.

Correct AnswerverifiedShow Answer

Mature bones are remodeled throughout life via a process known as __________.

Correct AnswerverifiedShow Answer

The plasma membrane of __________ have a ruffled border with many deep infoldings,whereas __________ have long,thin,fingerlike cytoplasmic processes.

Correct AnswerverifiedShow Answer

Blood Ca2+ deficiency stimulates __________ secretion,which leads to __________.

Correct AnswerverifiedShow Answer

Bone-forming cells are called __________.

Correct AnswerverifiedShow Answer

Which of the following exemplifies a positive feedback process happening in bone mineral deposition?

Correct AnswerverifiedShow Answer

A radiograph (X-ray)of a child's hand will show epiphyseal lines.

Correct AnswerverifiedShow Answer

Bone protrudes through the skin in a fracture called __________.

Correct AnswerverifiedShow Answer

Intramembranous ossification produces the __________.

Correct AnswerverifiedShow Answer

Which of the following is the correct sequence of events in the healing of a bone fracture?

Correct AnswerverifiedShow Answer

The most common bone disease is __________.

Correct AnswerverifiedShow Answer

Bone elongation is a result of __________.

Correct AnswerverifiedShow Answer

Red bone marrow does not contain __________.

Correct AnswerverifiedShow Answer

If a thyroid tumor secreted an excessive amount of calcitonin,we would expect ___________.

Correct AnswerverifiedShow Answer

Patches of fibrocartilage formed in the healing of a fracture are called __________,whereas the bony collar formed around the fracture is called __________.

Correct AnswerverifiedShow Answer

Intramembranous ossification is common in children,whereas endochondral ossification is typical in young adults.

Correct AnswerverifiedShow Answer

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The result of blood calcium and phosphate levels being too low for normal deposition is a softness of the bones called in children and in adults.

Correct Answer
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The plasma membrane of have a ruffled border with many deep infoldings,whereas have long,thin,fingerlike cytoplasmic processes.

Correct Answer
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Blood Ca²⁺ deficiency stimulates secretion,which leads to .

Correct Answer
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Patches of fibrocartilage formed in the healing of a fracture are called ,whereas the bony collar formed around the fracture is called .

Correct Answer
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Correct Answer
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