Question 1

On the diagram,what structure is composed of the three connective tissue layers that extend past the muscle?

Accepted Answer

A) A 
B) B 
C) E 
D) G 
E) H 
A) A 
B) B 
C) E 
D) G 
E) H B

Question 2

Which functions as a motor protein in all three types of muscle tissue?

Accepted Answer

A) actin 
B) myosin 
C) troponin 
D) titin 
E) tropomyosin 
A) actin 
B) myosin 
C) troponin 
D) titin 
E) tropomyosin B

Question 3

A brief contraction of all muscle fibers in a motor unit in response to a single action potential moving down the somatic motor neuron is known as

Accepted Answer

A) unfused tetanus. 
B) fused tetanus 
C) wave summation. 
D) refractory period. 
E) twitch contraction. 
A) unfused tetanus. 
B) fused tetanus 
C) wave summation. 
D) refractory period. 
E) twitch contraction. E

Question 4

Which function do all three muscles perform?

Accepted Answer

A) moving and storing material throughout the body 
B) generating heat through contractions 
C) stabilizing the movement of joints 
D) promoting movement of body structures 
A) moving and storing material throughout the body 
B) generating heat through contractions 
C) stabilizing the movement of joints 
D) promoting movement of body structures

Question 5

Contraction of myofibrils within a muscle fiber begins when

Accepted Answer

A) sodium enters the muscle fiber 
B) acetylcholine binds to ligand gates 
C) calcium is released from the sarcoplasmic reticulum 
D) an action potential travels t-tubules 
E) calcium is moved into the sarcoplasmic reticulum 
A) sodium enters the muscle fiber 
B) acetylcholine binds to ligand gates 
C) calcium is released from the sarcoplasmic reticulum 
D) an action potential travels t-tubules 
E) calcium is moved into the sarcoplasmic reticulum

Question 6

In the diagram,calcium ions will rush into this area.

Accepted Answer

A) B 
B) C 
C) D 
A) B 
B) C 
C) D

Question 7

Describe the factors that lead to muscle fatigue.

Accepted Answer

Although the precise mechanisms that cau

Question 8

Place the muscle tissue type in order from least to most ability to regenerate.

Accepted Answer

A) smooth,skeletal,cardiac 
B) skeletal,cardiac,smooth 
C) cardiac,smooth,skeletal 
D) skeletal,smooth,cardiac 
E) cardiac,skeletal,smooth 
A) smooth,skeletal,cardiac 
B) skeletal,cardiac,smooth 
C) cardiac,smooth,skeletal 
D) skeletal,smooth,cardiac 
E) cardiac,skeletal,smooth

Question 9

When an athlete is preparing to perform a pull up,they hang from the bar.At this point,they are performing what type of contractions?

Accepted Answer

A) Concentric 
B) Eccentric 
C) Isometric 
A) Concentric 
B) Eccentric 
C) Isometric

Question 10

Which term describes a somatic motor neuron and all the skeletal muscle fibers it stimulates?

Accepted Answer

A) synapse 
B) motor unit 
C) neuromuscular junction 
D) motor end plate 
A) synapse 
B) motor unit 
C) neuromuscular junction 
D) motor end plate

Question 11

Myofibrils contain what type of proteins? Select all that apply.

Accepted Answer

A) contractile proteins. 
B) regulatory proteins. 
C) structural proteins. 
D) tensile proteins 
A) contractile proteins. 
B) regulatory proteins. 
C) structural proteins. 
D) tensile proteins

Question 12

The opening of ligand gates on the sarcolemma is directly caused by

Accepted Answer

A) acetylcholine attachment. 
B) calcium influx into the motor neuron . 
C) sodium influx into the muscle fiber. 
D) acetylcholinesterase activity 
E) all choices are correct 
A) acetylcholine attachment. 
B) calcium influx into the motor neuron . 
C) sodium influx into the muscle fiber. 
D) acetylcholinesterase activity 
E) all choices are correct

Question 13

List the four steps of the contraction cycle in order of occurrence.What is needed for these steps to continuously repeat?

Accepted Answer

ATP hydrolysis,attachment of m

Question 14

Why would cardiac muscles have longer refractory periods than skeletal muscles.Choose the best answer?

Accepted Answer

A) to preserve the normal rhythm of the heart and prevent fatigue 
B) the muscle types contain different contractile proteins 
C) skeletal muscle is autorhythmic 
D) skeletal muscles have prolonged calcium influx 
E) cardiac muscle is not dependent on aerobic respiration to produce ATP 
A) to preserve the normal rhythm of the heart and prevent fatigue 
B) the muscle types contain different contractile proteins 
C) skeletal muscle is autorhythmic 
D) skeletal muscles have prolonged calcium influx 
E) cardiac muscle is not dependent on aerobic respiration to produce ATP

Question 15

Match between columns
                        Premises: ___________: Resists fatigue
___________: Uses aerobic and anaerobic
___________: Lowest myoglobin content

Accepted Answer

The Answer of Fast Glycolytic and Fast Oxidative Glycolytic and is...

Question 16

Which type of muscle tissue contracts when excited by their own autorhythmic muscle fibers?

Accepted Answer

A) cardiac muscle 
B) slow twitch oxidative skeletal muscle 
C) multi-unit smooth muscle 
D) fast twitch glycolytic skeletal muscle 
A) cardiac muscle 
B) slow twitch oxidative skeletal muscle 
C) multi-unit smooth muscle 
D) fast twitch glycolytic skeletal muscle

Question 17

In a neuromuscular junction,the effect of acetylcholine (ACh)binding to receptors on the motor end plate lasts only briefly due to

Accepted Answer

A) rapid uptake of the ACh into the myofiber. 
B) endocytosis of the ACh receptor into the myofiber. 
C) rapid destruction of ACh in the synaptic cleft by acetylcholinesterase. 
D) rapid destruction of ACh in the synaptic cleft by monoamine oxidase. 
E) diffusion of the ACh out of the synaptic cleft. 
A) rapid uptake of the ACh into the myofiber. 
B) endocytosis of the ACh receptor into the myofiber. 
C) rapid destruction of ACh in the synaptic cleft by acetylcholinesterase. 
D) rapid destruction of ACh in the synaptic cleft by monoamine oxidase. 
E) diffusion of the ACh out of the synaptic cleft.

Question 18

Match between columns
                        Premises: _________:wraps around groups of muscles
_________:encircles muscle
_________:encircles fascicles
_________:separates muscle fibers

Accepted Answer

The Answer of Endomysium and Epimysium and Fascia and Perimysium is...

Question 19

The drug dantrolene inhibits release of calcium into the sarcoplasm.Dantrolene affects the ____ _____.

Accepted Answer

The answer of The drug dantrolene inhibits release of calcium...

Question 20

Diltiazem is a calcium channel blocker,reducing free intracellular calcium.What stage of the myogram would be affected immediately?

Accepted Answer

A) Latent period 
B) Contraction period 
C) Relaxation period 
D) All myogram stages are affected 
A) Latent period 
B) Contraction period 
C) Relaxation period 
D) All myogram stages are affected

Exam 10: Muscular Tissue

On the diagram,what structure is composed of the three connective tissue layers that extend past the muscle?

Which functions as a motor protein in all three types of muscle tissue?

A brief contraction of all muscle fibers in a motor unit in response to a single action potential moving down the somatic motor neuron is known as

Which function do all three muscles perform?

Contraction of myofibrils within a muscle fiber begins when

In the diagram,calcium ions will rush into this area.

Describe the factors that lead to muscle fatigue.

Place the muscle tissue type in order from least to most ability to regenerate.

When an athlete is preparing to perform a pull up,they hang from the bar.At this point,they are performing what type of contractions?

Which term describes a somatic motor neuron and all the skeletal muscle fibers it stimulates?

Myofibrils contain what type of proteins? Select all that apply.

The opening of ligand gates on the sarcolemma is directly caused by

List the four steps of the contraction cycle in order of occurrence.What is needed for these steps to continuously repeat?

Why would cardiac muscles have longer refractory periods than skeletal muscles.Choose the best answer?

Which type of muscle tissue contracts when excited by their own autorhythmic muscle fibers?

In a neuromuscular junction,the effect of acetylcholine (ACh)binding to receptors on the motor end plate lasts only briefly due to

The drug dantrolene inhibits release of calcium into the sarcoplasm.Dantrolene affects the ____ _____.

Diltiazem is a calcium channel blocker,reducing free intracellular calcium.What stage of the myogram would be affected immediately?

An Introduction to the Human Body

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

The Skeletal System: Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: The Appendicular Skeleton

Joints

The Muscular System

Nervous Tissue

The Spinal Cord and Spinal Nerves

The Brain and Cranial Nerves

The Autonomic Nervous System

Sensory, Motor, and Integrative Systems

The Special Senses

The Endocrine System

The Cardiovascular System: the Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Hemodynamics

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Metabolism and Nutrition

The Urinary System

Fluid, Electrolyte, and Acidbase Homeostasis

The Reproductive Systems

Development and Inheritance

Filters

The drug dantrolene inhibits release of calcium into the sarcoplasm.Dantrolene affects the _.