Question 1

Osteoblasts involved in bone growth in length come primarily from

Accepted Answer

A)   chondrocytes.
B)   endothelium of blood vessels.
C)   osteocytes.
D)   periosteum.
E)   connective tissue surrounding blood vessels of the endosteum.F) D) and E)
G) C) and E)

Question 2

________ run perpendicular to the long axis of the bone and contain blood vessels that carry blood from the medullary cavity and periosteum to the osteon.

Accepted Answer

A)   Haversian canals
B)   Perforating canals
C)   Lamellar canals
D)   Osteochondral canals
E)   CanaliculiF) B) and D)
G) All of the above

Question 3

The primary mineral in bone is ________.

Accepted Answer

A)   sodium
B)   oxygen
C)   calcium
D)   potassium
E)   ironF) All of the above
G) B) and E)

Question 4

Select the functions of the skeletal system. (Check all that apply.)

Accepted Answer

A)   Production of blood cells and platelets
B)   Protection of internal organs
C)   Storage of glycogen
D)   Storage of mineralsE) None of the above
F) B) and C)

Question 5

-This figure illustrates bone growth in length at the epiphyseal plate. Zone "D" represents

Accepted Answer

A)   bone tissue of the diaphysis.
B)   zone of calcification.
C)   zone of hypertrophy.
D)   zone of proliferation.
E)   zone of resting cartilage.F) A) and B)
G) A) and C)

Question 6

Spaces in the bone matrix that are occupied by osteocytes are ________.

Accepted Answer

A)   lamellae
B)   lacunae
C)   periosteum
D)   trabeculaeE) All of the above
F) C) and D)

Question 7

What is the membrane that lines the medullary cavity?

Accepted Answer

A)   Epiphysis
B)   Fibers
C)   Growth plate
D)   Medullary cavity
E)   EndosteumF) B) and E)
G) None of the above

Question 8

Which structure forms between the ends of a broken bone as well as the marrow cavity?

Accepted Answer

A)   Hematoma
B)   Internal callus
C)   External callus
D)   Compact boneE) A) and B)
F) A) and C)

Question 9

-This figure illustrates bone growth in length at the epiphyseal plate. Zone "E" represents

Accepted Answer

A)   bone tissue of the diaphysis.
B)   zone of calcification.
C)   zone of hypertrophy.
D)   zone of proliferation.
E)   zone of resting cartilage.F) B) and E)
G) C) and E)

Question 10

Bone remodeling stops during puberty.

Accepted Answer

A) True 
 B)False

Question 11

A bone fracture in which the two bone sections do not separate is a/an ________ fracture.

Accepted Answer

A)   open
B)   closed
C)   avulsion
D)   complete
E)   nondisplacedF) None of the above
G) B) and E)

Question 12

Which of the following events of endochondral ossification occurs last?

Accepted Answer

A)   Blood vessels grow into the primary ossification center.
B)   Cartilage is calcified in the cartilage model.
C)   A cartilage model is formed by chondroblasts.
D)   Osteoblasts produce trabeculae and lamellae on the surface of calcified cartilage.
E)   Secondary ossification centers appear in the epiphyses.F) A) and B)
G) A) and C)

Question 13

Twelve-year old Madeline has not yet experienced a bone growth spurt, meaning she is not yet producing which particular chemicals necessary for this to occur?

Accepted Answer

A)   Growth hormone
B)   Sex hormones
C)   Parathyroid hormone
D)   Calcitonin
E)   Vitamin DF) A) and C)
G) B) and C)

Question 14

Which type of bone tissue has concentric lamellae?

Accepted Answer

A)   Spongy bone
B)   Compact bone
C)   Both "spongy bone" and "compact bone" are correct.D) None of the above
E) All of the above

Question 15

Sixty-five year old Stephen has knee replacement surgery which requires a thin section of his distal femur to be removed. Which of the following statements is true?

Accepted Answer

A)   Due to the invasive nature of the surgical procedure, Stephen is at risk for osteomyelitis, a bacterial infection of bone.
B)   Stephen has no risk of osteomyelitis because he tests negative for Staphylococcus aureus when given a skin swab.
C)   The health care team informs Stephen he is at high risk for osteomyelitis due to his age.
D)   As long as the surgery has minimal bleeding, Stephen will have no risk for developing osteomyelitis.E) A) and C)
F) A) and B)

Question 16

The parietal bone is formed by ________ ossification.

Accepted Answer

A)   endochondral
B)   intramembranousC) A) and B)
D) undefined

Question 17

The stem cells of osteoblasts and chondroblasts are ________.

Accepted Answer

A)   osteocytes
B)   osteoclasts
C)   chondrocytes
D)   the same cells that give rise to monocytes
E)   osteochondral progenitor cellsF) A) and E)
G) A) and B)

Question 18

Osteons or haversian systems

Accepted Answer

A)   are found in spongy bone tissue.
B)   lack concentric lamellae.
C)   are the basic units in compact bone tissue.
D)   do not contain osteocytes.
E)   are avascular.F) A) and C)
G) C) and D)

Question 19

What is the site of longitudinal growth in long bones?

Accepted Answer

A)   Epiphysis
B)   Sharpey's fibers
C)   Epiphyseal plate
D)   Medullary cavity
E)   EndosteumF) A) and E)
G) None of the above

Question 20

Which of the following involves respiratory system activity that contributes to osteoporosis?

Accepted Answer

A)   Lack of oxygen reduces vitamin D production and decreases calcium absorption.
B)   Mucosal cells of the respiratory tract release chemicals that inhibit tissue repair.
C)   Excessive smoking lowers estrogen levels, which increases bone loss.
D)   Calcium ions released from the bones are excreted through exhaled air.
E)   Decreased oxygen levels contribute to the disease.F) A) and E)
G) B) and D)

Exam 6: Skeletal System: Bones and Bone Tissue

Osteoblasts involved in bone growth in length come primarily from

Correct AnswerverifiedShow Answer

What is the site of longitudinal growth in long bones?

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Osteons or haversian systems

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Select the functions of the skeletal system. (Check all that apply.)

Correct AnswerverifiedShow Answer

The stem cells of osteoblasts and chondroblasts are ________.

Correct AnswerverifiedShow Answer

What is the membrane that lines the medullary cavity?

Correct AnswerverifiedShow Answer

Twelve-year old Madeline has not yet experienced a bone growth spurt, meaning she is not yet producing which particular chemicals necessary for this to occur?

Correct AnswerverifiedShow Answer

-This figure illustrates bone growth in length at the epiphyseal plate. Zone "D" represents

Correct AnswerverifiedShow Answer

The parietal bone is formed by ________ ossification.

Correct AnswerverifiedShow Answer

________ run perpendicular to the long axis of the bone and contain blood vessels that carry blood from the medullary cavity and periosteum to the osteon.

Correct AnswerverifiedShow Answer

Sixty-five year old Stephen has knee replacement surgery which requires a thin section of his distal femur to be removed. Which of the following statements is true?

Correct AnswerverifiedShow Answer

Spaces in the bone matrix that are occupied by osteocytes are ________.

Correct AnswerverifiedShow Answer

Which type of bone tissue has concentric lamellae?

Correct AnswerverifiedShow Answer

Which of the following events of endochondral ossification occurs last?

Correct AnswerverifiedShow Answer

Which structure forms between the ends of a broken bone as well as the marrow cavity?

Correct AnswerverifiedShow Answer

The primary mineral in bone is ________.

Correct AnswerverifiedShow Answer

Bone remodeling stops during puberty.

Correct AnswerverifiedShow Answer

Which of the following involves respiratory system activity that contributes to osteoporosis?

Correct AnswerverifiedShow Answer

A bone fracture in which the two bone sections do not separate is a/an ________ fracture.

Correct AnswerverifiedShow Answer

-This figure illustrates bone growth in length at the epiphyseal plate. Zone "E" represents

Correct AnswerverifiedShow Answer

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