Question 1

The principal muscle used for extending the thigh, as in climbing stairs, is the _____.

Accepted Answer

gluteus maximus

Question 2

The rotator cuff muscles are _____, _____, _____, and _____. What vigorous movement of the shoulder most likely contributes to a rotator cuff injury?

Accepted Answer

supraspinatus, infraspinatus, subscapularis, teres minor, circumduction

Question 3

List the muscles that act on the mandible to open the mouth and those that act on the mandible to close the mouth. Which set of muscles is more forceful? Why?

Accepted Answer

Masseter, temporalis, and medial pterygoid close the mouth. Lateral pterygoid, digastric, mylohyoid, and geniohyoid open the mouth. Closing the mouth is more forceful. Masseter and temporalis are large, powerful muscles whose main action is to elevate the mandible. All muscles that act to depress the mandible have other primary actions.

Question 4

Tibialis anterior and tibialis posterior muscles both invert the foot.

Accepted Answer

A) True 
 B)False

Question 5

Which best describes the buccinator?

Accepted Answer

A)  swimmer's muscle 
B)  trumpeter's muscle 
C)  most important breathing muscle 
D)  boxer's muscle 
E)  "workhorse" of the elbow flexors 
A)  swimmer's muscle 
B)  trumpeter's muscle 
C)  most important breathing muscle 
D)  boxer's muscle 
E)  "workhorse" of the elbow flexors

Question 6

The muscle indicated by line B originates from the _____ and inserts on the _____.

Accepted Answer

A)  ilium, femur 
B)  ilium, tibia 
C)  ischium, femur 
D)  ischium, tibia 
A)  ilium, femur 
B)  ilium, tibia 
C)  ischium, femur 
D)  ischium, tibia

Question 7

The scalenes originate on the first and second ribs and insert on the third through sixth thoracic vertebrae.

Accepted Answer

A) True 
 B)False

Question 8

The psoas major and iliacus muscles have a common insertion on the femur. These two muscles are involved in _____ of the thigh.

Accepted Answer

A)  flexion 
B)  extension 
C)  adduction 
D)  abduction 
A)  flexion 
B)  extension 
C)  adduction 
D)  abduction

Question 9

Which best describes the sartorius?

Accepted Answer

A)  swimmer's muscle 
B)  tailor's muscle 
C)  lateral hamstring 
D)  boxer's muscle 
E)  "workhorse" of the elbow flexors 
A)  swimmer's muscle 
B)  tailor's muscle 
C)  lateral hamstring 
D)  boxer's muscle 
E)  "workhorse" of the elbow flexors

Question 10

The perineum consists of an anterior _____ triangle and a posterior _____ triangle.

Accepted Answer

A)  anal; urogenital 
B)  urinary; genital 
C)  urogenital; anal 
D)  genital; urinary 
A)  anal; urogenital 
B)  urinary; genital 
C)  urogenital; anal 
D)  genital; urinary

Question 11

Name and describe the location of each of the muscles of the three compartments of the thigh: anterior, medial, and posterior.

Accepted Answer

The answer of Name and describe the location of each...

Question 12

The muscle indicated by line G

Accepted Answer

A)  depresses the scapula 
B)  abducts the sapula 
C)  inserts on the lateral border 
D)  is innervated by the dorsal scapular nerve 
E)  is the swimmer's muscle 
A)  depresses the scapula 
B)  abducts the sapula 
C)  inserts on the lateral border 
D)  is innervated by the dorsal scapular nerve 
E)  is the swimmer's muscle

Question 13

Which two muscles provide a good example of an "antagonistic pair"?

Accepted Answer

A)  biceps brachii and brachialis 
B)  semitendinosus and semimembranosus 
C)  vastus medialis and vastus lateralis 
D)  fibularis (peroneus) longus and tibialis anterior 
A)  biceps brachii and brachialis 
B)  semitendinosus and semimembranosus 
C)  vastus medialis and vastus lateralis 
D)  fibularis (peroneus) longus and tibialis anterior

Question 14

Branches of the _____ nerve are involved in the innervation of all perineal muscles.

Accepted Answer

The answer of Branches of the _____ nerve are involved...

Question 15

The pectoralis minor muscle

Accepted Answer

A)  inserts on the greater tubercle of the humerus. 
B)  inserts on the acromion of the scapula. 
C)  may originate from ribs 3 to 5. 
D)  originates from the clavicle and sternum. 
A)  inserts on the greater tubercle of the humerus. 
B)  inserts on the acromion of the scapula. 
C)  may originate from ribs 3 to 5. 
D)  originates from the clavicle and sternum.

Question 16

The rectus sheath and linea alba are formed by the aponeuroses of the external obliques, internal obliques, and transversus abdominis muscles.

Accepted Answer

A) True 
 B)False

Question 17

What muscle is indicated by line D?

Accepted Answer

The answer of What muscle is indicated by line D?...

Question 18

The following muscles all have attachments to ribs or their costal cartilages. Which of them are NOT used to produce the movements of normal breathing?
1) external intercostals
2) internal intercostals
3) external obliques
4) internal obliques
5) diaphragm

Accepted Answer

A)  2, 3, 4 
B)  3, 4 
C)  1, 3, 5 
D)  2, 4 
A)  2, 3, 4 
B)  3, 4 
C)  1, 3, 5 
D)  2, 4

Question 19

The _____ muscle extends from the sternum to the thyroid cartilage and acts to depress the larynx.

Accepted Answer

A)  sternothyroid 
B)  sternohyoid 
C)  omohyoid 
D)  thyrohyoid 
A)  sternothyroid 
B)  sternohyoid 
C)  omohyoid 
D)  thyrohyoid

Question 20

The deltoid muscle is named according to:

Accepted Answer

A)  orientation of muscle fascicles relative to the body's midline. 
B)  relative shape of the muscle. 
C)  relative size of the muscle. 
D)  location. 
A)  orientation of muscle fascicles relative to the body's midline. 
B)  relative shape of the muscle. 
C)  relative size of the muscle. 
D)  location.

Exam 11: The Muscular System

The principal muscle used for extending the thigh, as in climbing stairs, is the _____.

The rotator cuff muscles are _____, _____, _____, and _____. What vigorous movement of the shoulder most likely contributes to a rotator cuff injury?

List the muscles that act on the mandible to open the mouth and those that act on the mandible to close the mouth. Which set of muscles is more forceful? Why?

Tibialis anterior and tibialis posterior muscles both invert the foot.

Which best describes the buccinator?

The muscle indicated by line B originates from the _____ and inserts on the _____.

The scalenes originate on the first and second ribs and insert on the third through sixth thoracic vertebrae.

The psoas major and iliacus muscles have a common insertion on the femur. These two muscles are involved in _____ of the thigh.

Which best describes the sartorius?

The perineum consists of an anterior _____ triangle and a posterior _____ triangle.

Name and describe the location of each of the muscles of the three compartments of the thigh: anterior, medial, and posterior.

The muscle indicated by line G

Which two muscles provide a good example of an "antagonistic pair"?

Branches of the _____ nerve are involved in the innervation of all perineal muscles.

The pectoralis minor muscle

The rectus sheath and linea alba are formed by the aponeuroses of the external obliques, internal obliques, and transversus abdominis muscles.

What muscle is indicated by line D?

The following muscles all have attachments to ribs or their costal cartilages. Which of them are NOT used to produce the movements of normal breathing? 1) external intercostals 2) internal intercostals 3) external obliques 4) internal obliques 5) diaphragm

The _____ muscle extends from the sternum to the thyroid cartilage and acts to depress the larynx.

The deltoid muscle is named according to:

An Introduction to the Human Body

Cells

Tissues

Development

The Integumentary System

Bone Tissue

The Skeletal System: the Axial Skeleton

The Skeletal System: the Appendicular Skeleton

Joints

Muscular Tissue

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Immunity

Nervous Tissue

The Spinal Cord and the Spinal Nerves

The Brain and the Cranial Nerves

The Autonomic Nervous System

Somatic Senses and Motor Control

Special Senses

The Endocrine System

The Respiratory System

The Digestive System

The Urinary System

The Reproductive Systems

Surface Anatomy

Filters

The rotator cuff muscles are ___, _, _, and ___. What vigorous movement of the shoulder most likely contributes to a rotator cuff injury?

The muscle indicated by line B originates from the _ and inserts on the _.

The perineum consists of an anterior _ triangle and a posterior _ triangle.