Question 1

-This figure illustrates the microscopic anatomy of spongy bone.Which number indicates a central canal

Accepted Answer

A)  1
B)  2
C)  4
D)  5
E)  None of the choices is correct.F) A) and D)
G) A) and E)

Question 2

Since cartilage must be continuously replaced in the body,appositional and interstitial growth of cartilage continues throughout life.

Accepted Answer

A) True 
 B)False

Question 3

The process of bone repair includes these steps:
A: Fracture hematoma forms
B: Bone is remodeled
C: Fibrocartilaginous callus forms
D: Bony callus forms
The correct chronological order for these steps is

Accepted Answer

A)  a - c - d - b
B)  a - b - d - c
C)  c - d - b - a
D)  d - a - b - c
E)  b - a - c - dF) D) and E)
G) A) and C)

Question 4

Describe the stimulus for bone resorption and how resorption is carried out at the cellular and chemical levels.

Accepted Answer

When blood calcium is low,reso...

Question 5

Calcitonin _________ osteoclast activity,which will _________ blood calcium levels.

Accepted Answer

A)  stimulates;increase
B)  stimulates;decrease
C)  inhibits;increase
D)  inhibits;decreaseE) B) and D)
F) A) and D)

Question 6

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.F) B) and E)
G) C) and D)

Question 7

Which type of cell produces new bone tissue by secreting matrix

Accepted Answer

A)  Osteocytes
B)  Osteoclasts
C)  Osteoblasts
D)  Osteoprogenitor cells
E)  Bone-lining cellsF) C) and D)
G) None of the above

Question 8

Parathyroid hormone release is triggered by _______ levels of calcium in the blood.

Accepted Answer

A)  high
B)  lowC) A) and B)
D) undefined

Question 9

When bone forms by intramembranous ossification,the ossification centers are within

Accepted Answer

A)  hyaline cartilage.
B)  compact bone.
C)  mesenchyme.
D)  elastic cartilage.
E)  spongy bone.F) None of the above
G) A) and C)

Question 10

The bones of the fingers and toes (phalanges) are categorized as _____ bones.

Accepted Answer

A)  long
B)  irregular
C)  short
D)  flat
E)  sesamoidF) A) and E)
G) A) and D)

Question 11

Endochondral ossification begins with a(n) _________ model.

Accepted Answer

A)  mesenchyme
B)  dense connective tissue
C)  hyaline cartilage
D)  membranous
E)  osteoidF) C) and D)
G) A) and E)

Question 12

Which is characteristic of cartilage connective tissue

Accepted Answer

A)  Gel-like ground substance
B)  Matrix of protein fibers
C)  Cells called chondrocytes
D)  Avascular
E)  All of the choices are correct.F) D) and E)
G) B) and C)

Question 13

Where does hemopoiesis occur

Accepted Answer

A)  Epiphyseal line
B)  Endosteum
C)  Red bone marrow
D)  Yellow bone marrow
E)  Nutrient foraminaF) B) and C)
G) A) and B)

Question 14

Calcitriol stimulates absorption of calcium in the small intestine.

Accepted Answer

A) True 
 B)False

Question 15

What would be the effect on bone growth of insufficient dietary calcium

Accepted Answer

A)  There would be no effect,because the body is able to synthesize calcium.
B)  The matrix would be softer.
C)  The bone would be less flexible.
D)  The epiphyseal plates would ossify earlier in development.
E)  There would be increased formation of spongy bone.F) A) and B)
G) B) and E)

Question 16

Parathyroid hormone and calcitriol

Accepted Answer

A)  stimulate osteoclasts to resorb bone and release calcium into the blood.
B)  stimulate osteoblasts to deposit bone by producing calcified matrix.
C)  stimulate osteoblasts to resorb bone and lower blood calcium levels.
D)  stimulate osteoclasts to move calcium from the blood and into the bone.E) None of the above
F) A) and B)

Question 17

The type of bone tissue that is replaced more frequently is ________ bone;the part of the femur that is replaced more frequently is the __________.

Accepted Answer

A)  compact;distal epiphysis
B)  compact;diaphysis
C)  spongy;distal epiphysis
D)  spongy;diaphysisE) All of the above
F) A) and D)

Question 18

Glucocorticoids increase bone ________;high levels of serotonin lead to _____ bone density.

Accepted Answer

A)  formation;high
B)  formation;low
C)  loss;high
D)  loss;lowE) C) and D)
F) A) and B)

Question 19

For most individuals the main source of vitamin D is dietary intake of milk.

Accepted Answer

A) True 
 B)False

Question 20

The bones of the wrist are classified as _____ bones.

Accepted Answer

A)  long
B)  regular
C)  short
D)  irregular
E)  flatF) B) and C)
G) A) and D)

Exam 7: Skeletal System: Bone Structure and Function

Parathyroid hormone and calcitriol

Correct AnswerverifiedShow Answer

Glucocorticoids increase bone ________;high levels of serotonin lead to _____ bone density.

Correct AnswerverifiedShow Answer

-This figure illustrates the microscopic anatomy of spongy bone.Which number indicates a central canal

Correct AnswerverifiedShow Answer

What would be the effect on bone growth of insufficient dietary calcium

Correct AnswerverifiedShow Answer

Calcitriol stimulates absorption of calcium in the small intestine.

Correct AnswerverifiedShow Answer

Where does hemopoiesis occur

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Since cartilage must be continuously replaced in the body,appositional and interstitial growth of cartilage continues throughout life.

Correct AnswerverifiedShow Answer

Which type of cell produces new bone tissue by secreting matrix

Correct AnswerverifiedShow Answer

The type of bone tissue that is replaced more frequently is ________ bone;the part of the femur that is replaced more frequently is the __________.

Correct AnswerverifiedShow Answer

Describe the stimulus for bone resorption and how resorption is carried out at the cellular and chemical levels.

Correct AnswerverifiedWhen blood calcium is low,reso...View AnswerShow Answer

For most individuals the main source of vitamin D is dietary intake of milk.

Correct AnswerverifiedShow Answer

Calcitonin _________ osteoclast activity,which will _________ blood calcium levels.

Correct AnswerverifiedShow Answer

Which is characteristic of cartilage connective tissue

Correct AnswerverifiedShow Answer

Parathyroid hormone release is triggered by _______ levels of calcium in the blood.

Correct AnswerverifiedShow Answer

When bone forms by intramembranous ossification,the ossification centers are within

Correct AnswerverifiedShow Answer

Endochondral ossification begins with a(n) _________ model.

Correct AnswerverifiedShow Answer

The process of bone repair includes these steps: A: Fracture hematoma forms B: Bone is remodeled C: Fibrocartilaginous callus forms D: Bony callus forms The correct chronological order for these steps is

Correct AnswerverifiedShow Answer

The bones of the fingers and toes (phalanges) are categorized as _____ bones.

Correct AnswerverifiedShow Answer

The bones of the wrist are classified as _____ bones.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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Glucocorticoids increase bone ____;high levels of serotonin lead to _ bone density.

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The type of bone tissue that is replaced more frequently is bone;the part of the femur that is replaced more frequently is the __.

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When blood calcium is low,reso...
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Calcitonin _ osteoclast activity,which will _ blood calcium levels.

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