Question 1

Which muscle connects the ribs and sternum to the pubic bones?

Accepted Answer

A) external intercostals 
B) external oblique 
C) transversus abdominis 
D) rectus abdominis 
E) diaphragm 
A) external intercostals 
B) external oblique 
C) transversus abdominis 
D) rectus abdominis 
E) diaphragm D

Question 2

Where do the muscles that position each pectoral girdle originate?

Accepted Answer

A) on the humerus 
B) on the axial skeleton 
C) on the pelvis 
D) on the radius and ulna 
E) on the femur 
A) on the humerus 
B) on the axial skeleton 
C) on the pelvis 
D) on the radius and ulna 
E) on the femur B

Question 3

Which of the following muscles has its insertion on the xiphoid process of the sternum?

Accepted Answer

A) internal oblique 
B) external intercostal 
C) rectus abdominis 
D) internal intercostal 
E) scalene 
A) internal oblique 
B) external intercostal 
C) rectus abdominis 
D) internal intercostal 
E) scalene C

Question 4

The leverage of the biceps brachii applies its force six times closer to the fulcrum (elbow joint)than the resistance.This means it will need to exert ________ kg of force to support a load of 6 kg.

Accepted Answer

A) 1 
B) 6 
C) 36 
D) 7 
E) can't say from this information 
A) 1 
B) 6 
C) 36 
D) 7 
E) can't say from this information

Question 5

What factors influence the performance of a skeletal muscle?

Accepted Answer

A) The performance of a skeletal muscle is dependent on the thickness of the bone to which it is attached. 
B) The performance of a skeletal muscle is dependent on muscle fiber organization and how the muscle attaches to the bone. 
C) The performance of a skeletal muscle is dependent on how large the muscle fibers are and how large the bone is. 
D) The performance of a skeletal muscle is dependent on how long the muscle fibers are and how tall the individual is. 
E) The performance of a skeletal muscle is dependent on whether it is an axial or an appendicular muscle. 
A) The performance of a skeletal muscle is dependent on the thickness of the bone to which it is attached. 
B) The performance of a skeletal muscle is dependent on muscle fiber organization and how the muscle attaches to the bone. 
C) The performance of a skeletal muscle is dependent on how large the muscle fibers are and how large the bone is. 
D) The performance of a skeletal muscle is dependent on how long the muscle fibers are and how tall the individual is. 
E) The performance of a skeletal muscle is dependent on whether it is an axial or an appendicular muscle.

Question 6

The ________ extends the neck.

Accepted Answer

A) spinalis thoracis 
B) splenius capitis 
C) spinalis cervicis 
D) iliocostalis lumborum 
E) longissimus capitis 
A) spinalis thoracis 
B) splenius capitis 
C) spinalis cervicis 
D) iliocostalis lumborum 
E) longissimus capitis

Question 7

Figure 10-1
-Identify the muscle labeled "25."

Accepted Answer

A) rectus femoris 
B) biceps femoris 
C) adductor longus 
D) risorius 
E) sartorius 
A) rectus femoris 
B) biceps femoris 
C) adductor longus 
D) risorius 
E) sartorius

Question 8

Explain how a person is able to consciously move the skin on the scalp but is not able to consciously move the skin of the thigh.

Accepted Answer

A person is able to consciously move the

Question 9

Muscular walls of the thorax and abdomen are composed of

Accepted Answer

A) spinal erector muscles. 
B) muscles of mastication. 
C) oblique and rectus muscles. 
D) glossal muscles. 
E) pectoralis muscles. 
A) spinal erector muscles. 
B) muscles of mastication. 
C) oblique and rectus muscles. 
D) glossal muscles. 
E) pectoralis muscles.

Question 10

Which of the following muscles does not have an action that is antagonistic to the action of the brachialis muscle?

Accepted Answer

A) anconeus 
B) triceps brachii lateral head 
C) triceps brachii long head 
D) triceps brachii medial head 
E) brachioradialis 
A) anconeus 
B) triceps brachii lateral head 
C) triceps brachii long head 
D) triceps brachii medial head 
E) brachioradialis

Question 11

The zygomaticus major muscle acts to

Accepted Answer

A) move the external ear. 
B) purse the lips. 
C) depress the lower lip. 
D) retract and elevate the corner of the mouth. 
E) close the eye. 
A) move the external ear. 
B) purse the lips. 
C) depress the lower lip. 
D) retract and elevate the corner of the mouth. 
E) close the eye.

Question 12

Why does a pennate muscle generate more tension than does a parallel muscle of the same size?

Accepted Answer

A) A pennate muscle generates more tension because pennate muscle fibers lie parallel to the bone. 
B) A pennate muscle generates more tension because pennate muscle fibers lie perpendicular to the bone and parallel muscle fibers lie parallel to the bone. 
C) A pennate muscle generates more tension because a pennate muscle contains more muscle fibers than a parallel muscle. 
D) A pennate muscle generates more tension because a pennate muscle has a flat body and a parallel muscle has a broad body. 
E) A pennate muscle generates more tension because a pennate muscle pulls in only one direction and parallel muscles pull in different directions. 
A) A pennate muscle generates more tension because pennate muscle fibers lie parallel to the bone. 
B) A pennate muscle generates more tension because pennate muscle fibers lie perpendicular to the bone and parallel muscle fibers lie parallel to the bone. 
C) A pennate muscle generates more tension because a pennate muscle contains more muscle fibers than a parallel muscle. 
D) A pennate muscle generates more tension because a pennate muscle has a flat body and a parallel muscle has a broad body. 
E) A pennate muscle generates more tension because a pennate muscle pulls in only one direction and parallel muscles pull in different directions.

Question 13

Deep muscles are called

Accepted Answer

A) superficialis. 
B) extrinsic. 
C) profundus. 
D) intrinsic. 
E) externus. 
A) superficialis. 
B) extrinsic. 
C) profundus. 
D) intrinsic. 
E) externus.

Question 14

How many skeletal muscles are there in the body?

Accepted Answer

A) approximately 80 
B) approximately 126 
C) approximately 200 
D) approximately 700 
E) approximately 1500 
A) approximately 80 
B) approximately 126 
C) approximately 200 
D) approximately 700 
E) approximately 1500

Question 15

If you were contracting and relaxing your masseter,what would you probably be doing?

Accepted Answer

A) swallowing 
B) blinking 
C) sticking out your tongue 
D) bending the neck to look down 
E) chewing or eating 
A) swallowing 
B) blinking 
C) sticking out your tongue 
D) bending the neck to look down 
E) chewing or eating

Question 16

What are the functions of the superior and inferior retinacula of the foot?

Accepted Answer

A) To allow inversion of the foot. 
B) To allow eversion of the foot. 
C) To assist in plantar flexion of the foot. 
D) To assist in dorsiflexion of the foot. 
E) To stabilize the positions of the tendons descending from the leg. 
A) To allow inversion of the foot. 
B) To allow eversion of the foot. 
C) To assist in plantar flexion of the foot. 
D) To assist in dorsiflexion of the foot. 
E) To stabilize the positions of the tendons descending from the leg.

Question 17

The muscle that inserts on the acromion and scapular spine is the

Accepted Answer

A) serratus anterior. 
B) trapezius. 
C) sternocleidomastoid. 
D) pectoralis minor. 
E) levator scapulae. 
A) serratus anterior. 
B) trapezius. 
C) sternocleidomastoid. 
D) pectoralis minor. 
E) levator scapulae.

Question 18

Muscles with fibers that run parallel to the long axis of the body are called

Accepted Answer

A) parallel. 
B) convergent. 
C) circular. 
D) pennate. 
E) sphincters. 
A) parallel. 
B) convergent. 
C) circular. 
D) pennate. 
E) sphincters.

Question 19

The ________ originate in the pelvic region and usually insert on the femur.

Accepted Answer

A) muscles that move the leg 
B) muscles that move the thigh 
C) intrinsic muscles of the hand 
D) extrinsic muscles that move the foot and toes 
E) muscles that move the arm 
A) muscles that move the leg 
B) muscles that move the thigh 
C) intrinsic muscles of the hand 
D) extrinsic muscles that move the foot and toes 
E) muscles that move the arm

Question 20

Muscles of the rotator cuff include all of the following exceptthe

Accepted Answer

A) supraspinatus. 
B) infraspinatus. 
C) subscapularis. 
D) teres minor. 
E) rhomboid. 
A) supraspinatus. 
B) infraspinatus. 
C) subscapularis. 
D) teres minor. 
E) rhomboid.

Exam 10: The Muscular System

Which muscle connects the ribs and sternum to the pubic bones?

Where do the muscles that position each pectoral girdle originate?

Which of the following muscles has its insertion on the xiphoid process of the sternum?

The leverage of the biceps brachii applies its force six times closer to the fulcrum (elbow joint)than the resistance.This means it will need to exert ________ kg of force to support a load of 6 kg.

What factors influence the performance of a skeletal muscle?

The ________ extends the neck.

Figure 10-1 -Identify the muscle labeled "25."

Explain how a person is able to consciously move the skin on the scalp but is not able to consciously move the skin of the thigh.

Muscular walls of the thorax and abdomen are composed of

Which of the following muscles does not have an action that is antagonistic to the action of the brachialis muscle?

The zygomaticus major muscle acts to

Why does a pennate muscle generate more tension than does a parallel muscle of the same size?

Deep muscles are called

How many skeletal muscles are there in the body?

If you were contracting and relaxing your masseter,what would you probably be doing?

What are the functions of the superior and inferior retinacula of the foot?

The muscle that inserts on the acromion and scapular spine is the

Muscles with fibers that run parallel to the long axis of the body are called

The ________ originate in the pelvic region and usually insert on the femur.

Muscles of the rotator cuff include all of the following exceptthe

An Introduction to Anatomy and Physiology

Chemical Level of Organization

Cellular Level of Organization

Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Skeleton

Joints

Skeletal Muscle Tissue

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

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