Question 1

Creatine phosphate provides the skeletal muscle with

Accepted Answer

A)  energy used to synthesize ATP. 
B)  lactic acid. 
C)  oxygen. 
D)  myoglobin. 
A)  energy used to synthesize ATP. 
B)  lactic acid. 
C)  oxygen. 
D)  myoglobin. A

Question 2

Where are the pronators and supinators located?

Accepted Answer

A)  Thigh 
B)  Abdomen 
C)  Lower back 
D)  Upper extremities 
A)  Thigh 
B)  Abdomen 
C)  Lower back 
D)  Upper extremities D

Question 3

Which of the following forms cross-bridges with actin?

Accepted Answer

A)  Sarcoplasmic reticulum 
B)  T tubules 
C)  Myosin 
D)  Sarcolemma 
A)  Sarcoplasmic reticulum 
B)  T tubules 
C)  Myosin 
D)  Sarcolemma C

Question 4

Which of the following normally terminates muscle contraction?

Accepted Answer

A)  Depletion of ACh in the neuromuscular junction 
B)  Binding of ACh to the NM receptors 
C)  Pumping of calcium back into the sarcoplasmic reticulum 
D)  Depletion of ATP within the sarcomere 
A)  Depletion of ACh in the neuromuscular junction 
B)  Binding of ACh to the NM receptors 
C)  Pumping of calcium back into the sarcoplasmic reticulum 
D)  Depletion of ATP within the sarcomere

Question 5

Which of the following is classified as disuse,denervation,and senile?

Accepted Answer

A)  Hypertrophy 
B)  Recruitment 
C)  Dystrophy 
D)  Atrophy 
A)  Hypertrophy 
B)  Recruitment 
C)  Dystrophy 
D)  Atrophy

Question 6

Which of the following generates the force that causes the filaments to slide past each other?

Accepted Answer

A)  Binding of the acetylcholine to the NM receptor in the neuromuscular junction 
B)  The interaction of acetylcholine and cholinesterase 
C)  The rotation of the myosin head on the actin 
D)  The pumping of calcium into the sarcoplasmic reticulum 
A)  Binding of the acetylcholine to the NM receptor in the neuromuscular junction 
B)  The interaction of acetylcholine and cholinesterase 
C)  The rotation of the myosin head on the actin 
D)  The pumping of calcium into the sarcoplasmic reticulum

Question 7

Which group of muscles moves the arm at the shoulder?

Accepted Answer

A)  Quadriceps femoris group 
B)  Hamstrings 
C)  Rotator cuff muscles 
D)  Muscles of mastication 
A)  Quadriceps femoris group 
B)  Hamstrings 
C)  Rotator cuff muscles 
D)  Muscles of mastication

Question 8

Which of the following words means "muscle weakness"?

Accepted Answer

A)  Myoglobin 
B)  Myopathy 
C)  Myasthenia 
D)  Atrophy 
A)  Myoglobin 
B)  Myopathy 
C)  Myasthenia 
D)  Atrophy

Question 9

The somatic motor neuron

Accepted Answer

A)  causes release of ACh into the NMJ. 
B)  stimulates the SR to release calcium into the sarcomeres. 
C)  moves the tropomyosin away from the myosin binding sites on actin. 
D)  stimulates the axon terminal to release calcium into the NMJ. 
A)  causes release of ACh into the NMJ. 
B)  stimulates the SR to release calcium into the sarcomeres. 
C)  moves the tropomyosin away from the myosin binding sites on actin. 
D)  stimulates the axon terminal to release calcium into the NMJ.

Question 10

Where is the vastus lateralis located?

Accepted Answer

A)  Arm 
B)  Thigh 
C)  Chest 
D)  Back 
A)  Arm 
B)  Thigh 
C)  Chest 
D)  Back

Question 11

The sarcoplasmic reticulum

Accepted Answer

A)  stores ACh. 
B)  is located within the neuromuscular junction. 
C)  envelops the sarcomere-containing myofibrils. 
D)  is a contractile protein. 
A)  stores ACh. 
B)  is located within the neuromuscular junction. 
C)  envelops the sarcomere-containing myofibrils. 
D)  is a contractile protein.

Question 12

Which large muscle extends the thigh at the hip?

Accepted Answer

A)  Sartorius 
B)  Hamstring 
C)  Rotator cuff 
D)  Latissimus dorsi 
A)  Sartorius 
B)  Hamstring 
C)  Rotator cuff 
D)  Latissimus dorsi

Question 13

What is the site of calcium storage in a relaxed skeletal muscle?

Accepted Answer

A)  T tubule 
B)  Neuromuscular junction 
C)  Fascicle 
D)  Sarcoplasmic reticulum 
A)  T tubule 
B)  Neuromuscular junction 
C)  Fascicle 
D)  Sarcoplasmic reticulum

Question 14

The purpose of myoglobin is to

Accepted Answer

A)  store oxygen. 
B)  sequester calcium. 
C)  convert lactic acid to glucose. 
D)  make the muscle red. 
A)  store oxygen. 
B)  sequester calcium. 
C)  convert lactic acid to glucose. 
D)  make the muscle red.

Question 15

Which muscle lies along the posterior surface of the arm and extends the forearm and is used to bear weight in crutch walking?

Accepted Answer

A)  Biceps brachii 
B)  Biceps femoris 
C)  Deltoid 
D)  Triceps brachii 
A)  Biceps brachii 
B)  Biceps femoris 
C)  Deltoid 
D)  Triceps brachii

Question 16

Which muscle lies along the anterior surface of the humerus and acts synergistically with the brachialis and brachioradialis to flex the forearm at the elbow?

Accepted Answer

A)  Deltoid 
B)  Triceps brachii 
C)  Biceps brachii 
D)  Latissimus dorsi 
A)  Deltoid 
B)  Triceps brachii 
C)  Biceps brachii 
D)  Latissimus dorsi

Question 17

Which flat muscle covers the forehead and raises the eyebrows (for a "surprised" look)?

Accepted Answer

A)  Frontalis 
B)  Zygomaticus 
C)  Masseter 
D)  Buccinator 
A)  Frontalis 
B)  Zygomaticus 
C)  Masseter 
D)  Buccinator

Question 18

Which muscle are you using as you turn your head down and to the left and then to the right?

Accepted Answer

A)  Sternocleidomastoid 
B)  Frontalis 
C)  Pectoralis major 
D)  Diaphragm 
A)  Sternocleidomastoid 
B)  Frontalis 
C)  Pectoralis major 
D)  Diaphragm

Question 19

An aponeurosis

Accepted Answer

A)  is flat, sheetlike fascia. 
B)  is composed of connective tissue. 
C)  forms a site of attachment for skeletal muscle. 
D)  All of the above are true. 
A)  is flat, sheetlike fascia. 
B)  is composed of connective tissue. 
C)  forms a site of attachment for skeletal muscle. 
D)  All of the above are true.

Question 20

Which muscle is located in the lower extremities?

Accepted Answer

A)  Peroneus longus 
B)  Latissimus dorsi 
C)  Serratus anterior 
D)  Pectoralis major 
A)  Peroneus longus 
B)  Latissimus dorsi 
C)  Serratus anterior 
D)  Pectoralis major

Exam 9: Muscular System

Creatine phosphate provides the skeletal muscle with

Where are the pronators and supinators located?

Which of the following forms cross-bridges with actin?

Which of the following normally terminates muscle contraction?

Which of the following is classified as disuse,denervation,and senile?

Which of the following generates the force that causes the filaments to slide past each other?

Which group of muscles moves the arm at the shoulder?

Which of the following words means "muscle weakness"?

The somatic motor neuron

Where is the vastus lateralis located?

The sarcoplasmic reticulum

Which large muscle extends the thigh at the hip?

What is the site of calcium storage in a relaxed skeletal muscle?

The purpose of myoglobin is to

Which muscle lies along the posterior surface of the arm and extends the forearm and is used to bear weight in crutch walking?

Which muscle lies along the anterior surface of the humerus and acts synergistically with the brachialis and brachioradialis to flex the forearm at the elbow?

Which flat muscle covers the forehead and raises the eyebrows (for a "surprised" look)?

Which muscle are you using as you turn your head down and to the left and then to the right?

An aponeurosis

Which muscle is located in the lower extremities?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels

Functions of the Blood Vessels

Lymphatic System

Immune System

Respiratory System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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