Question 1

-What does structure "B" represent on the bone diagram?

Accepted Answer

A)   cancellous bone
B)   diaphysis
C)   epiphyseal lines
D)   articular cartilage
E)   epiphysisF) B) and C)
G) A) and E)

Question 2

-This figure illustrates bone growth in length at the Epiphyseal Plate. What is zone "C"?

Accepted Answer

A)   bone of diaphysis
B)   zone of calcification
C)   zone of hypertrophy
D)   zone of proliferation
E)   zone of resting cartilageF) B) and D)
G) C) and D)

Question 3

Proteoglycan molecules in the matrix of cartilage

Accepted Answer

A)   replace collagen fibers in the matrix.
B)   give cartilage its resilient nature.
C)   fill the lacunae.
D)   make the perichondrium very stretchable.
E)   make cartilage hard and compact.F) A) and E)
G) A) and D)

Question 4

Osteomalacia is

Accepted Answer

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

Question 5

-This figure illustrates bone growth in length at the Epiphyseal Plate. What is zone "A"?

Accepted Answer

A)   bone of diaphysis
B)   zone of calcification
C)   zone of hypertrophy
D)   zone of proliferation
E)   zone of resting cartilageF) D) and E)
G) A) and E)

Question 6

The medullary cavity is

Accepted Answer

A)   empty in adult bones.
B)   the site where osteoblasts are found.
C)   lined with endosteum.
D)   filled with fibrocartilage and elastin fibers.
E)   dead space in the bone.F) C) and D)
G) A) and B)

Question 7

How does the nervous system contribute to osteoporosis?

Accepted Answer

A)   inadequate amounts of calcium and vitamin D in the diet
B)   lack of exercise reduces muscle stress on bone
C)   pain following injury helps prevent further injury
D)   blood clotting starts repair process
E)   calcitonin is used to treat osteoporosisF) D) and E)
G) A) and C)

Question 8

An X-ray determines that Peter fractured the shaft of his humerus. The break is in the _____________ of the bone.

Accepted Answer

A)   epiphysis
B)   epiphyseal line
C)   diaphysis
D)   growth plate
E)   articular surfaceF) A) and E)
G) C) and E)

Question 9

Which of the following statements regarding PTH (parathyroid hormone)  is true?

Accepted Answer

A)   PTH causes decreased uptake of Ca2+ from the small intestine.
B)   PTH causes decreased vitamin D formation in the kidneys.
C)   PTH causes increased reabsorption of Ca2+ in the kidneys.
D)   PTH causes increased loss of Ca2+ from the kidneys.
E)   PTH causes increased Na+ reabsorption in the kidneys.F) None of the above
G) A) and B)

Question 10

What structure forms between the ends of a broken bone and also the marrow cavities?

Accepted Answer

A)   hematoma
B)   internal callus
C)   external callus
D)   compact boneE) B) and C)
F) A) and C)

Question 11

The spaces between developing skull bones that have not ossified are called

Accepted Answer

A)   epiphyseal plates.
B)   articular cartilages.
C)   fontanels.
D)   bone collars.
E)   medullary cavities.F) D) and E)
G) B) and D)

Question 12

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) B) and D)
G) B) and E)

Question 13

Which of the following is NOT an effect of parathyroid hormone (PTH) ?

Accepted Answer

A)   increased Ca2+ uptake by the small intestine
B)   increased vitamin D formation in the kidneys
C)   increased Ca2+ reabsorption by the kidneys
D)   decreased Ca2+ loss by the kidneys
E)   All of these are effects of PTH.F) B) and C)
G) A) and D)

Question 14

Which type of bone cells lie in lacunae?

Accepted Answer

A)   osteochondral progenitor cell
B)   osteoblasts
C)   osteocytes
D)   osteoclastsE) C) and D)
F) None of the above

Question 15

Which type of bone cells possess extensive ER and ribosomes?

Accepted Answer

A)   osteochondral progenitor cell
B)   osteoblasts
C)   osteocytes
D)   osteoclastsE) None of the above
F) B) and C)

Question 16

-This is a diagram of calcium homeostasis. What process is represented by "C"?

Accepted Answer

A)   PTH promotes calcium release into blood by osteoclast.
B)   Calcium is removed from blood by osteoblasts.
C)   Vitamin D promotes calcium absorption.
D)   Calcium is lost in urine.
E)   PTH promotes calcium reabsorption from urine.F) C) and D)
G) A) and E) A

Question 17

A young boy (10 years old)  exhibited the following symptoms: advanced development of secondary sexual characteristics and rapid growth. Which of the following caused his condition?

Accepted Answer

A)   hypersecretion of growth hormone
B)   hypersecretion of testosterone
C)   hypersecretion of estrogen
D)   hyposecretion of estrogen
E)   hypersecretion of vitamin DF) B) and E)
G) B) and D) B

Question 18

What strengthens the attachment of the tendons or ligaments to bone?

Accepted Answer

A)   epiphysis
B)   Sharpey fibers
C)   growth plate
D)   medullary cavity
E)   endosteumF) A) and B)
G) A) and E)

Question 19

A bone fracture that does not perforate the skin is a(an)

Accepted Answer

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

Question 20

What chemical causes an increase in the blood calcium level?

Accepted Answer

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

Exam 6: Skeletal System: Bones and Bone Tissue

-What does structure "B" represent on the bone diagram?

Correct AnswerverifiedShow Answer

-This figure illustrates bone growth in length at the Epiphyseal Plate. What is zone "C"?

Correct AnswerverifiedShow Answer

Proteoglycan molecules in the matrix of cartilage

Correct AnswerverifiedShow Answer

Osteomalacia is

Correct AnswerverifiedShow Answer

-This figure illustrates bone growth in length at the Epiphyseal Plate. What is zone "A"?

Correct AnswerverifiedShow Answer

The medullary cavity is

Correct AnswerverifiedShow Answer

How does the nervous system contribute to osteoporosis?

Correct AnswerverifiedShow Answer

An X-ray determines that Peter fractured the shaft of his humerus. The break is in the _____________ of the bone.

Correct AnswerverifiedShow Answer

Which of the following statements regarding PTH (parathyroid hormone) is true?

Correct AnswerverifiedShow Answer

What structure forms between the ends of a broken bone and also the marrow cavities?

Correct AnswerverifiedShow Answer

The spaces between developing skull bones that have not ossified are called

Correct AnswerverifiedShow Answer

Bone remodeling may occur

Correct AnswerverifiedShow Answer

Which of the following is NOT an effect of parathyroid hormone (PTH) ?

Correct AnswerverifiedShow Answer

Which type of bone cells lie in lacunae?

Correct AnswerverifiedShow Answer

Which type of bone cells possess extensive ER and ribosomes?

Correct AnswerverifiedShow Answer

-This is a diagram of calcium homeostasis. What process is represented by "C"?

Correct AnswerverifiedA

A young boy (10 years old) exhibited the following symptoms: advanced development of secondary sexual characteristics and rapid growth. Which of the following caused his condition?

Correct AnswerverifiedB

What strengthens the attachment of the tendons or ligaments to bone?

Correct AnswerverifiedShow Answer

A bone fracture that does not perforate the skin is a(an)

Correct AnswerverifiedB

What chemical causes an increase in the blood calcium level?

Correct AnswerverifiedShow Answer

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