Question 1

The plasma membrane of a muscle fiber is called the sarcolemma . 
____________________

Accepted Answer

A) True 
 B)False  True

Question 2

The components of the pectoral girdle are:

Accepted Answer

A)  three fused hipbones. 
B)  the clavicles and the scapula. 
C)  the ribs and the clavicles. 
D)  the ribs and the sternum. 
E)  the ribs and the digits. 
A)  three fused hipbones. 
B)  the clavicles and the scapula. 
C)  the ribs and the clavicles. 
D)  the ribs and the sternum. 
E)  the ribs and the digits. B

Question 3

Draw and label a long bone, giving the function of each part.

Accepted Answer

Concepts to Consider: Periosteum--outer connective tissue to which tendons and ligaments attach; capable of producing bone and increasing diameter. Diaphysis--shaft of long bone; houses marrow cavity filled with bone marrow. Epiphyses--ends of long bone. Metaphysis--disk of cartilage that separates diaphysis and epiphyses; growth center, allows for the lengthening of bone. Epiphyseal line occurs when growth stops.

Question 4

Figure 40-3   Refer to the accompanying figure. In which portion of the bone does red blood cell production occur?

Accepted Answer

A)  B 
B)  C 
C)  J 
D)  H 
E)  I 
A)  B 
B)  C 
C)  J 
D)  H 
E)  I

Question 5

Explain why rigor mortis occurs following death.

Accepted Answer

Concepts to Consider: Lack of oxygen and

Question 6

Helena's doctor has advised her to take calcium supplements to help prevent:

Accepted Answer

A)  osteitis. 
B)  osteoporosis. 
C)  osteopenia. 
D)  osteoarthritis. 
E)  osteon disease. 
A)  osteitis. 
B)  osteoporosis. 
C)  osteopenia. 
D)  osteoarthritis. 
E)  osteon disease.

Question 7

What is the correct order of events that occur during muscle contraction?
1) muscle shortens
2) calcium binds to troponin
3) filaments slide
4) T tubules are depolarized
5) acetylcholine is released
6) ATP molecule is split

Accepted Answer

A)  4 → 5 → 2 → 1 → 3 → 6 
B)  4 → 2 → 5 → 6 → 1 → 3 
C)  5 → 2 → 4 → 1 → 6 → 3 
D)  6 → 2 → 5 → 4 → 3 → 1 
E)  5 → 4 → 2 → 6 → 3 → 1 
A)  4 → 5 → 2 → 1 → 3 → 6 
B)  4 → 2 → 5 → 6 → 1 → 3 
C)  5 → 2 → 4 → 1 → 6 → 3 
D)  6 → 2 → 5 → 4 → 3 → 1 
E)  5 → 4 → 2 → 6 → 3 → 1

Question 8

How does smooth muscle differ from skeletal muscle?

Accepted Answer

A)  Smooth muscle attaches to bones via tendons. 
B)  Smooth muscle has a striated appearance. 
C)  Smooth muscle undergoes quick contractions. 
D)  Smooth muscles are connected via gap junctions. 
E)  Smooth muscle cross bridges form transiently. 
A)  Smooth muscle attaches to bones via tendons. 
B)  Smooth muscle has a striated appearance. 
C)  Smooth muscle undergoes quick contractions. 
D)  Smooth muscles are connected via gap junctions. 
E)  Smooth muscle cross bridges form transiently.

Question 9

The Z line consists of parts of actin filaments on two adjacent sarcomeres. 
____________________

Accepted Answer

A) True 
 B)False

Question 10

Figure 40-3   The portion of the bone labeled I in the accompanying figure is called the:

Accepted Answer

A)  periosteum. 
B)  lacunae. 
C)  epiphysis. 
D)  osteon. 
E)  metaphysis.. 
A)  periosteum. 
B)  lacunae. 
C)  epiphysis. 
D)  osteon. 
E)  metaphysis..

Question 11

The collagen fibers in bone are secreted by osteoblasts . 
____________________

Accepted Answer

A) True 
 B)False

Question 12

Accumulation of ____ contributes to muscle fatigue.

Accepted Answer

A)  ATP 
B)  creatine phosphate 
C)  glycogen 
D)  lactic acid 
E)  carbon monoxide 
A)  ATP 
B)  creatine phosphate 
C)  glycogen 
D)  lactic acid 
E)  carbon monoxide

Question 13

Figure 40-3   In the accompanying figure, the function of the structure labeled C, particularly in small children, is to:

Accepted Answer

A)  produce blood cells. 
B)  act as a growth center. 
C)  provide mechanical strength. 
D)  serve as an attachment site for tendons. 
E)  nourish the bone tissue. 
A)  produce blood cells. 
B)  act as a growth center. 
C)  provide mechanical strength. 
D)  serve as an attachment site for tendons. 
E)  nourish the bone tissue.

Question 14

Endoskeletons are shed in the process of ecdysis. 
____________________

Accepted Answer

A) True 
 B)False

Question 15

Match between columns
                        Premises: called a "thick filament"
repeating unit of muscle contraction
called a "thin filament"
released from motor neuron
site where action potential spreads
calcium ions bind directly to this protein
stores calcium ions
cytoplasm of a muscle fiber

Accepted Answer

The Answer of acetylcholine and myosin and actin and sarcoplasmic is...

Question 16

The axial skeleton of vertebrates consists of the bones of the limbs, the pectoral girdle, and most of the pelvic girdle. 
____________________

Accepted Answer

A) True 
 B)False

Question 17

What is a major difference between the endoskeleton and the exoskeleton?

Accepted Answer

A)  The endoskeleton is capable of growth. 
B)  The endoskeleton permits movement. 
C)  The endoskeleton contains calcium. 
D)  The endoskeleton is molted more frequently. 
E)  The endoskeleton provides support. 
A)  The endoskeleton is capable of growth. 
B)  The endoskeleton permits movement. 
C)  The endoskeleton contains calcium. 
D)  The endoskeleton is molted more frequently. 
E)  The endoskeleton provides support.

Question 18

People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood cells. This is because radiation affects:

Accepted Answer

A)  spongy bone. 
B)  osteoblasts. 
C)  osteoclasts. 
D)  lacunae. 
E)  metaphysis. 
A)  spongy bone. 
B)  osteoblasts. 
C)  osteoclasts. 
D)  lacunae. 
E)  metaphysis.

Question 19

Which process is an example of a function carried out by the skeletal system?

Accepted Answer

A)  transmission of mechanical forces 
B)  conduction of nerve impulses 
C)  regulation of body temperature 
D)  transportation of hemoglobin 
E)  contraction of muscle fibers 
A)  transmission of mechanical forces 
B)  conduction of nerve impulses 
C)  regulation of body temperature 
D)  transportation of hemoglobin 
E)  contraction of muscle fibers

Question 20

Compare and contrast the function of the external epithelium and its derivatives in invertebrates and vertebrates.

Accepted Answer

Concepts to Consider: The epithelium is

Exam 40: Protection Support and Movement

The plasma membrane of a muscle fiber is called the sarcolemma . ____________________

The components of the pectoral girdle are:

Draw and label a long bone, giving the function of each part.

Figure 40-3 Refer to the accompanying figure. In which portion of the bone does red blood cell production occur?

Explain why rigor mortis occurs following death.

Helena's doctor has advised her to take calcium supplements to help prevent:

What is the correct order of events that occur during muscle contraction? 1) muscle shortens 2) calcium binds to troponin 3) filaments slide 4) T tubules are depolarized 5) acetylcholine is released 6) ATP molecule is split

How does smooth muscle differ from skeletal muscle?

The Z line consists of parts of actin filaments on two adjacent sarcomeres. ____________________

Figure 40-3 The portion of the bone labeled I in the accompanying figure is called the:

The collagen fibers in bone are secreted by osteoblasts . ____________________

Accumulation of ____ contributes to muscle fatigue.

Figure 40-3 In the accompanying figure, the function of the structure labeled C, particularly in small children, is to:

Endoskeletons are shed in the process of ecdysis. ____________________

The axial skeleton of vertebrates consists of the bones of the limbs, the pectoral girdle, and most of the pelvic girdle. ____________________

What is a major difference between the endoskeleton and the exoskeleton?

People who undergo radiation therapy sometimes develop anemia resulting from a decreased production of red blood cells. This is because radiation affects:

Which process is an example of a function carried out by the skeletal system?

Compare and contrast the function of the external epithelium and its derivatives in invertebrates and vertebrates.

A View of Life

Atoms and Molecules the Chemical Basis of Life

The Chemistry of Life Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp Energy-Releasing Pathways

Photosynthesis Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure Growth and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function an Introduction

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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