Question 1

Which statement best describes primary bone?

Accepted Answer

A)  Primary bone contains abundant osteocytes and little inorganic matrix. 
B)  Primary bone is stronger than secondary bone since it contains many lamellae. 
C)  Primary bone contains a higher percentage of inorganic matrix than secondary bone. 
D)  Primary bone has regularly arranged parallel bundles of collagen fibers for strength. 
A)  Primary bone contains abundant osteocytes and little inorganic matrix. 
B)  Primary bone is stronger than secondary bone since it contains many lamellae. 
C)  Primary bone contains a higher percentage of inorganic matrix than secondary bone. 
D)  Primary bone has regularly arranged parallel bundles of collagen fibers for strength.

Question 2

How would the removal of hydroxyapatite crystals from bone matrix affect the physical properties of a bone?

Accepted Answer

A)  The bone would be less compressible. 
B)  The bone would be stronger. 
C)  The bone would be more flexible. 
D)  The bone would be less flexible. 
A)  The bone would be less compressible. 
B)  The bone would be stronger. 
C)  The bone would be more flexible. 
D)  The bone would be less flexible.

Question 3

Place the following steps of bone repair in the correct sequence. 1. The bone callus is remodeled and primary bone is replaced with secondary bone.
2) A hematoma fills the gap between bone fragments.
3) Osteoblasts built a new bone callus.
4) Fibroblasts and chondroblasts infiltrate the hematoma and a soft callus forms.

Accepted Answer

A)  3, 2, 4, 1 
B)  2, 3, 4, 1 
C)  2, 4, 3, 1 
D)  3, 2, 1, 4 
A)  3, 2, 4, 1 
B)  2, 3, 4, 1 
C)  2, 4, 3, 1 
D)  3, 2, 1, 4

Question 4

Brittle bone disease (osteogenesis imperfecta) usually results from a collagen deficiency. Explain how a collagen deficiency affects bone structure.

Accepted Answer

The predominant protein fibers in bone a

Question 5

What type of bone growth do you think a 40 -year -old male experiences?

Accepted Answer

A)  appositional growth 
B)  lengthwise growth 
C)  endochondral ossification 
D)  longitudinal growth 
A)  appositional growth 
B)  lengthwise growth 
C)  endochondral ossification 
D)  longitudinal growth

Question 6

Summarize the components of an osteon of compact bone tissue.

Accepted Answer

An osteon includes lamellae, a central c

Question 7

Osteoblasts are to bone deposition as:

Accepted Answer

A)  osteocytes are to fat storage. 
B)  osteoclasts are to bone resorption. 
C)  osteoclasts are to hematopoiesis. 
D)  osteocytes are to bone formation. 
A)  osteocytes are to fat storage. 
B)  osteoclasts are to bone resorption. 
C)  osteoclasts are to hematopoiesis. 
D)  osteocytes are to bone formation.

Question 8

For a person who starts running for exercise,

Accepted Answer

A)  bone deposition is not related to bone resorption. 
B)  bone deposition exceeds bone resorption. 
C)  bone deposition equals bone resorption. 
D)  bone deposition is less than bone resorption. 
A)  bone deposition is not related to bone resorption. 
B)  bone deposition exceeds bone resorption. 
C)  bone deposition equals bone resorption. 
D)  bone deposition is less than bone resorption.

Question 9

Which of the following does NOT correctly depict the effects of parathyroid hormone (PTH)?

Accepted Answer

A)  PTH decreases blood calcium ion concentration. 
B)  PTH stimulates osteoclast activity. 
C)  PTH weakens the bones. 
D)  PTH stimulates the intestines to absorb calcium ions. 
A)  PTH decreases blood calcium ion concentration. 
B)  PTH stimulates osteoclast activity. 
C)  PTH weakens the bones. 
D)  PTH stimulates the intestines to absorb calcium ions.

Question 10

Which hormone, produced by the thyroid gland, works opposite to parathyroid hormone (PTH)?

Accepted Answer

A)  thyroid hormones 
B)  testosterone 
C)  estrogen 
D)  calcitonin 
A)  thyroid hormones 
B)  testosterone 
C)  estrogen 
D)  calcitonin

Question 11

Bone growth in length occurs at the epiphyseal plate in:

Accepted Answer

A)  irregular bones. 
B)  short bones. 
C)  long bones. 
D)  flat bones. 
A)  irregular bones. 
B)  short bones. 
C)  long bones. 
D)  flat bones.

Question 12

The term diploë refers to the:

Accepted Answer

A)  fact that most bones are formed of two types of bone tissue. 
B)  double -layered nature of the connective tissue covering the bone. 
C)  internal layer of spongy bone in flat bones. 
D)  two types of marrow found within most bones. 
A)  fact that most bones are formed of two types of bone tissue. 
B)  double -layered nature of the connective tissue covering the bone. 
C)  internal layer of spongy bone in flat bones. 
D)  two types of marrow found within most bones.

Question 13

The patella is classified as a sesamoid bone since it:

Accepted Answer

A)  has a diaphysis and epiphyses. 
B)  has an irregular shape. 
C)  is longer than it is wide. 
D)  is located within tendons. 
A)  has a diaphysis and epiphyses. 
B)  has an irregular shape. 
C)  is longer than it is wide. 
D)  is located within tendons.

Question 14

Which of the following are NOT components of an osteon?

Accepted Answer

A)  trabeculae 
B)  canaliculi 
C)  lamellae 
D)  lacunae 
A)  trabeculae 
B)  canaliculi 
C)  lamellae 
D)  lacunae

Question 15

What prompts the closure of the epiphyseal plate around age 18 -21?

Accepted Answer

A)  chondrocytes actively divide 
B)  mitosis in the zone of calcification 
C)  ossification of the zone of proliferation 
D)  chondrocytes increase in size and mature 
A)  chondrocytes actively divide 
B)  mitosis in the zone of calcification 
C)  ossification of the zone of proliferation 
D)  chondrocytes increase in size and mature

Question 16

How long does bone repair generally take?

Accepted Answer

A)  12 -16 weeks 
B)  2 -4 weeks 
C)  6 -8 weeks 
D)  4 -6 months 
A)  12 -16 weeks 
B)  2 -4 weeks 
C)  6 -8 weeks 
D)  4 -6 months

Exam 6: Bones and Bone Tissue

Which statement best describes primary bone?

How would the removal of hydroxyapatite crystals from bone matrix affect the physical properties of a bone?

Brittle bone disease (osteogenesis imperfecta) usually results from a collagen deficiency. Explain how a collagen deficiency affects bone structure.

What type of bone growth do you think a 40 -year -old male experiences?

Summarize the components of an osteon of compact bone tissue.

Osteoblasts are to bone deposition as:

For a person who starts running for exercise,

Which of the following does NOT correctly depict the effects of parathyroid hormone (PTH)?

Which hormone, produced by the thyroid gland, works opposite to parathyroid hormone (PTH)?

Bone growth in length occurs at the epiphyseal plate in:

The term diploë refers to the:

The patella is classified as a sesamoid bone since it:

Which of the following are NOT components of an osteon?

What prompts the closure of the epiphyseal plate around age 18 -21?

How long does bone repair generally take?

Introduction to Anatomy Physiology

The Chemistry of Life

The Cell

Histology

The Integumentary System

The Skeletal System

Articulations

The Muscular System

Muscle Tissue Physiology

Introduction to the Nervous System Nervous Tissue

The Central Nervous System

The Peripheral Nervous System

The Autonomic Nervous System Homeostasis

The Special Senses

The Endocrine System

The Cardiovascular System I: the Heart

The Cardiovascular System Ii: Blood Vessels

Blood

The Lymphatic System Immunity

The Respiratory System

The Digestive System

Metabolism Nutrition

The Urinary System

Fluid, Electrolyte Acid-Base Homeostasis

The Reproductive System

Development Heredity

Filters

What type of bone growth do you think a 40 ^-year ^-old male experiences?

What prompts the closure of the epiphyseal plate around age 18 ^-21?