Question 1

Stem cells that can differentiate into osteoblasts are important in

Accepted Answer

A) osteogenesis. 
B) bone resorption. 
C) releasing hydrochloric acid. 
D) derived from macrophages. 
E) releasing hydroxyapatite. 
A) osteogenesis. 
B) bone resorption. 
C) releasing hydrochloric acid. 
D) derived from macrophages. 
E) releasing hydroxyapatite.

Question 2

A fracture at the ankle involving both lower leg bones is often called a ________ fracture.

Accepted Answer

A) compression 
B) Pott's 
C) displaced 
D) greenstick 
E) Colles 
A) compression 
B) Pott's 
C) displaced 
D) greenstick 
E) Colles

Question 3

As a bone increases in diameter,what happens to the medullary cavity?

Accepted Answer

A) The medullary cavity increases in diameter because bone matrix is removed by osteoblasts. 
B) The medullary cavity increases in diameter because bone matrix is removed by osteoclasts. 
C) The medullary cavity decreases in diameter because bone matrix is added by osteoclasts. 
D) The medullary cavity decreases in diameter because bone matrix is added by osteoblasts. 
E) The medullary cavity diameter does not change but fills in with more bone marrow. 
A) The medullary cavity increases in diameter because bone matrix is removed by osteoblasts. 
B) The medullary cavity increases in diameter because bone matrix is removed by osteoclasts. 
C) The medullary cavity decreases in diameter because bone matrix is added by osteoclasts. 
D) The medullary cavity decreases in diameter because bone matrix is added by osteoblasts. 
E) The medullary cavity diameter does not change but fills in with more bone marrow.

Question 4

________ are stem cells that develop into osteoblasts.

Accepted Answer

A) Osteoclasts 
B) Osteocytes 
C) Osteomedullary cells 
D) Osteogenic cells 
E) Squamous osteons 
A) Osteoclasts 
B) Osteocytes 
C) Osteomedullary cells 
D) Osteogenic cells 
E) Squamous osteons

Question 5

Where is articular cartilage found,and how is it nourished?

Accepted Answer

A) Articular cartilage is found in the medullary cavity and is nourished by the nutrient artery. 
B) Articular cartilage is found down the length of the diaphysis and is nourished by the nutrient artery. 
C) Articular cartilage is found at both metaphyses and is nourished by the metaphyseal artery. 
D) Articular cartilage is found covering both epiphyseal portions of articulating bone and nutrients diffuse from synovial fluid within the joint. 
E) Articular cartilage is found in the medullary cavity and is nourished by the rich vascular red bone marrow. 
A) Articular cartilage is found in the medullary cavity and is nourished by the nutrient artery. 
B) Articular cartilage is found down the length of the diaphysis and is nourished by the nutrient artery. 
C) Articular cartilage is found at both metaphyses and is nourished by the metaphyseal artery. 
D) Articular cartilage is found covering both epiphyseal portions of articulating bone and nutrients diffuse from synovial fluid within the joint. 
E) Articular cartilage is found in the medullary cavity and is nourished by the rich vascular red bone marrow.

Question 6

Define intramembranous ossification.

Accepted Answer

A) Intramembranous ossification is the formation of hyaline cartilage from mesenchymal cells. 
B) Intramembranous ossification is the formation of elastic cartilage from mesenchymal cells. 
C) Intramembranous ossification is the formation of fibrocartilage from mesenchymal cells. 
D) Intramembranous ossification is the replacement of a cartilage model with bone. 
E) Intramembranous ossification is bone formation within connective tissue without the prior development of a cartilage model. 
A) Intramembranous ossification is the formation of hyaline cartilage from mesenchymal cells. 
B) Intramembranous ossification is the formation of elastic cartilage from mesenchymal cells. 
C) Intramembranous ossification is the formation of fibrocartilage from mesenchymal cells. 
D) Intramembranous ossification is the replacement of a cartilage model with bone. 
E) Intramembranous ossification is bone formation within connective tissue without the prior development of a cartilage model.

Question 7

Figure 6-2
-Identify the structure at "4."

Accepted Answer

A) intramembranous bone 
B) spongy bone 
C) hyaline cartilage 
D) periosteum 
E) mesenchyme 
A) intramembranous bone 
B) spongy bone 
C) hyaline cartilage 
D) periosteum 
E) mesenchyme

Question 8

Blood is distributed from the surface of a bone to deeper central canals through channels known as

Accepted Answer

A) perforating canals. 
B) concentric lamellae. 
C) osteons. 
D) lamellae. 
E) trabeculae. 
A) perforating canals. 
B) concentric lamellae. 
C) osteons. 
D) lamellae. 
E) trabeculae.

Question 9

Which of the following is not a function of the skeletal system?

Accepted Answer

A) body support 
B) calcium homeostasis 
C) protection of internal organs 
D) blood cell production 
E) temperature regulation 
A) body support 
B) calcium homeostasis 
C) protection of internal organs 
D) blood cell production 
E) temperature regulation

Question 10

The carpal bones are examples of ________ bones.

Accepted Answer

A) long 
B) short 
C) flat 
D) irregular 
E) sesamoid 
A) long 
B) short 
C) flat 
D) irregular 
E) sesamoid

Question 11

Which of the following is true for parathyroid hormone?

Accepted Answer

A) stimulates osteoblast activity. 
B) decreases the rate of calcium absorption. 
C) increase the rate of calcium excretion. 
D) lowers the level of calcium ion in the blood. 
E) inhibits calcitonin secretion. 
A) stimulates osteoblast activity. 
B) decreases the rate of calcium absorption. 
C) increase the rate of calcium excretion. 
D) lowers the level of calcium ion in the blood. 
E) inhibits calcitonin secretion.

Question 12

Figure 6-1
-The structures labeled "3" are the result of which process?

Accepted Answer

A) bone cells adding matrix between existing osteons 
B) surface growth of bone 
C) recycling of compact bone 
D) recycling of spongy bone 
E) osteoporosis 
A) bone cells adding matrix between existing osteons 
B) surface growth of bone 
C) recycling of compact bone 
D) recycling of spongy bone 
E) osteoporosis

Question 13

What structure allows a bone to grow in length?

Accepted Answer

A) lacunae 
B) epiphyseal cartilages 
C) periosteal bud 
D) metaphysis 
E) trabeculae 
A) lacunae 
B) epiphyseal cartilages 
C) periosteal bud 
D) metaphysis 
E) trabeculae

Question 14

Identify the functions of the skeleton.

Accepted Answer

The skeletal system supports t

Question 15

Excessive growth hormone after puberty could result in

Accepted Answer

A) osteoporosis. 
B) osteopenia. 
C) acromegaly. 
D) gigantism. 
E) dwarfism. 
A) osteoporosis. 
B) osteopenia. 
C) acromegaly. 
D) gigantism. 
E) dwarfism.

Question 16

Why are bone injuries usually painful?

Accepted Answer

Bone injuries are usually pain

Question 17

A ________ fracture produces shattered bone fragments.

Accepted Answer

A) comminuted 
B) compression 
C) greenstick 
D) transverse 
E) displaced 
A) comminuted 
B) compression 
C) greenstick 
D) transverse 
E) displaced

Question 18

A transverse fracture of the wrist that may be comminuted is called a ________ fracture.

Accepted Answer

A) Colles 
B) Pott's 
C) simple 
D) greenstick 
E) transverse 
A) Colles 
B) Pott's 
C) simple 
D) greenstick 
E) transverse

Question 19

Define endochondral ossification.

Accepted Answer

A) Endochondral ossification is the formation of hyaline cartilage. 
B) Endochondral ossification is the formation of elastic cartilage. 
C) Endochondral ossification is the formation of fibrocartilage. 
D) Endochondral ossification is the replacement of a cartilage model with bone. 
E) Endochondral ossification is bone formation within connective tissue without the prior development of a cartilage model. 
A) Endochondral ossification is the formation of hyaline cartilage. 
B) Endochondral ossification is the formation of elastic cartilage. 
C) Endochondral ossification is the formation of fibrocartilage. 
D) Endochondral ossification is the replacement of a cartilage model with bone. 
E) Endochondral ossification is bone formation within connective tissue without the prior development of a cartilage model.

Question 20

How could x-rays of the femur be used to determine whether a person has reached full height?

Accepted Answer

X-rays of long bones,such as the femur,c

Exam 6: Bones and Bone Structure

Stem cells that can differentiate into osteoblasts are important in

A fracture at the ankle involving both lower leg bones is often called a ________ fracture.

As a bone increases in diameter,what happens to the medullary cavity?

________ are stem cells that develop into osteoblasts.

Where is articular cartilage found,and how is it nourished?

Define intramembranous ossification.

Figure 6-2 -Identify the structure at "4."

Blood is distributed from the surface of a bone to deeper central canals through channels known as

Which of the following is not a function of the skeletal system?

The carpal bones are examples of ________ bones.

Which of the following is true for parathyroid hormone?

Figure 6-1 -The structures labeled "3" are the result of which process?

What structure allows a bone to grow in length?

Identify the functions of the skeleton.

Excessive growth hormone after puberty could result in

Why are bone injuries usually painful?

A ________ fracture produces shattered bone fragments.

A transverse fracture of the wrist that may be comminuted is called a ________ fracture.

Define endochondral ossification.

How could x-rays of the femur be used to determine whether a person has reached full height?

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Cellular Level of Organization

Tissue Level of Organization

The Integumentary System

The Skeleton

Joints

Skeletal Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, spinal Nerves, and Spinal Reflexes

The Brain, cranial Nerves, and Sensory and Motor Pathways

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Heart and Cardiovascular Function

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism, nutrition, and Energetics

The Urinary System

Fluid,electrolyte,and Acid-Base Balance

The Reproductive System

Development and Inheritance

Filters