Question 1

In which of the following locations in a growing bone would the greatest osteoclast activity be found?

Accepted Answer

A) articular cartilage 
B) perichondrium 
C) epiphyseal plate 
D) epiphysis 
E) medullary cavity 
A) articular cartilage 
B) perichondrium 
C) epiphyseal plate 
D) epiphysis 
E) medullary cavity

Question 2

Which type of bone cells have ruffled borders and secrete acids?

Accepted Answer

A) osteoblasts 
B) osteochondral progenitor cell 
C) osteoclasts 
D) osteocytes 
A) osteoblasts 
B) osteochondral progenitor cell 
C) osteoclasts 
D) osteocytes

Question 3

Ossification that involves replacing cartilage with bone is

Accepted Answer

A) interstitial. 
B) endochondral. 
C) intramembranous. 
D) osteomalacia. 
E) appositional. 
A) interstitial. 
B) endochondral. 
C) intramembranous. 
D) osteomalacia. 
E) appositional.

Question 4

The collar that forms around the opposing ends of bone fragments is called a(n)

Accepted Answer

A) osteon. 
B) epiphysis. 
C) hematoma. 
D) internal callus. 
E) external callus. 
A) osteon. 
B) epiphysis. 
C) hematoma. 
D) internal callus. 
E) external callus.

Question 5

Which of the following statements about bone remodeling and repair is correct?

Accepted Answer

A) Bone remodeling involves removal of old bone by osteoblasts. 
B) The rate of bone remodeling increases in the elderly. 
C) Exposure of a bone to increased mechanical stress can lead to bone remodeling. 
D) Bone remodeling does not involve the activity of the osteoclasts and the osteoblasts. 
E) As a long bone increases in diameter,the size of the marrow cavity decreases. 
A) Bone remodeling involves removal of old bone by osteoblasts. 
B) The rate of bone remodeling increases in the elderly. 
C) Exposure of a bone to increased mechanical stress can lead to bone remodeling. 
D) Bone remodeling does not involve the activity of the osteoclasts and the osteoblasts. 
E) As a long bone increases in diameter,the size of the marrow cavity decreases.

Question 6

When a fracture begins to heal,one type of bone cell moves into the fracture site and tears down the damaged bone tissue.Which of the following does this?

Accepted Answer

A) osteoblasts 
B) osteocytes 
C) osteoclasts 
D) osteons 
E) matrix cells 
A) osteoblasts 
B) osteocytes 
C) osteoclasts 
D) osteons 
E) matrix cells

Question 7

What is the area where marrow is located?

Accepted Answer

A) endosteum 
B) Sharpey fibers 
C) periosteum 
D) medullary cavity 
E) growth plate 
A) endosteum 
B) Sharpey fibers 
C) periosteum 
D) medullary cavity 
E) growth plate

Question 8

It is possible to determine if a child's long bone is growing by examining a radiograph of the

Accepted Answer

A) diaphysis. 
B) medullary cavity. 
C) epiphyseal plate. 
D) articular cartilage. 
A) diaphysis. 
B) medullary cavity. 
C) epiphyseal plate. 
D) articular cartilage.

Question 9

Osteomalacia is

Accepted Answer

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

Question 10

Intramembranous ossification

Accepted Answer

A) occurs when osteoblasts invade the spaces left by dying cartilage cells. 
B) forms the bones of the roof of the skull. 
C) occurs on the outer surface of the membrane. 
D) is the process that produces most of the skeletal system. 
E) occurs when bones develop from cartilage models. 
A) occurs when osteoblasts invade the spaces left by dying cartilage cells. 
B) forms the bones of the roof of the skull. 
C) occurs on the outer surface of the membrane. 
D) is the process that produces most of the skeletal system. 
E) occurs when bones develop from cartilage models.

Question 11

What type of tissue covers the ends of long bones?

Accepted Answer

A) articular cartilage 
B) fibrocartilage 
C) cancellous bone 
D) elastic cartilage 
E) periosteum 
A) articular cartilage 
B) fibrocartilage 
C) cancellous bone 
D) elastic cartilage 
E) periosteum

Question 12

Which of the following is correctly matched?

Accepted Answer

A) periosteum - lines the medullary cavity 
B) osteoblasts - break down bone tissue 
C) osteoclasts - responsible for reabsorption 
D) endosteum - lines central canal of the osteon 
E) osteocytes - function in bone remodeling 
A) periosteum - lines the medullary cavity 
B) osteoblasts - break down bone tissue 
C) osteoclasts - responsible for reabsorption 
D) endosteum - lines central canal of the osteon 
E) osteocytes - function in bone remodeling

Question 13

The proportion of collagen to hydroxyapatite in bone determines the

Accepted Answer

A) thickness of the bone. 
B) strength of the bone. 
C) growth rate of bone. 
D) ability of the bone to heal. 
E) length of the bone. 
A) thickness of the bone. 
B) strength of the bone. 
C) growth rate of bone. 
D) ability of the bone to heal. 
E) length of the bone.

Question 14

Which type of bone cells combine hydroxyapatite and collagen to form extracellular bone matrix?

Accepted Answer

A) osteochondral progenitor cell 
B) osteoblasts 
C) osteocytes 
D) osteoclasts 
A) osteochondral progenitor cell 
B) osteoblasts 
C) osteocytes 
D) osteoclasts

Question 15

Which of the following is associated with osteoclast reabsorption of bone?

Accepted Answer

A) Osteoblasts form collagen and proteoglycans. 
B) Blood calcium is decreased. 
C) Ca2+ is actively transported from blood to bone matrix. 
D) Hydrogen ions form an acid environment in bone matrix. 
E) The protein components of bone matrix are synthesized. 
A) Osteoblasts form collagen and proteoglycans. 
B) Blood calcium is decreased. 
C) Ca2+ is actively transported from blood to bone matrix. 
D) Hydrogen ions form an acid environment in bone matrix. 
E) The protein components of bone matrix are synthesized.

Question 16

The process of ______ is important to change shapes of bones,adjust to bone stress,replace old bone matrix and to facilitate repair of broken bone.

Accepted Answer

A)  endochondral ossification 
B)  appositional bone growth 
C)  bone remodeling 
D)  intramembranous ossification 
A)  endochondral ossification 
B)  appositional bone growth 
C)  bone remodeling 
D)  intramembranous ossification

Question 17

Canaliculi are found in this type of bone tissue.

Accepted Answer

A) compact bone 
B) both spongy and compact 
C) spongy bone 
A) compact bone 
B) both spongy and compact 
C) spongy bone

Question 18

True or false: The two types of bone development formation include endochondral and endosteal bone.

Accepted Answer

A) True 
 B)False

Question 19

True or false: The application of small electrical charges to broken bones are sometimes used to enhance healing.

Accepted Answer

A) True 
 B)False

Question 20

What chemical stimulates interstitial cartilage and appositional bone growth?

Accepted Answer

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

Exam 6: Skeletal System: Bones and Bone Tissue

In which of the following locations in a growing bone would the greatest osteoclast activity be found?

Which type of bone cells have ruffled borders and secrete acids?

Ossification that involves replacing cartilage with bone is

The collar that forms around the opposing ends of bone fragments is called a(n)

Which of the following statements about bone remodeling and repair is correct?

When a fracture begins to heal,one type of bone cell moves into the fracture site and tears down the damaged bone tissue.Which of the following does this?

What is the area where marrow is located?

It is possible to determine if a child's long bone is growing by examining a radiograph of the

Osteomalacia is

Intramembranous ossification

What type of tissue covers the ends of long bones?

Which of the following is correctly matched?

The proportion of collagen to hydroxyapatite in bone determines the

Which type of bone cells combine hydroxyapatite and collagen to form extracellular bone matrix?

Which of the following is associated with osteoclast reabsorption of bone?

The process of ______ is important to change shapes of bones,adjust to bone stress,replace old bone matrix and to facilitate repair of broken bone.

Canaliculi are found in this type of bone tissue.

True or false: The two types of bone development formation include endochondral and endosteal bone.

True or false: The application of small electrical charges to broken bones are sometimes used to enhance healing.

What chemical stimulates interstitial cartilage and appositional bone growth?

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Gross Anatomy

Joints and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition,metabolism,and Temperature Regulation

Urinary System

Water,electrolyte,and Acid-Based Balance

Reproductive System

Development,growth,aging,and Genetics

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