Question 1

Where is the sartorius?

Accepted Answer

A) I 
B) B 
C) C 
D) D 
E) G 
A) I 
B) B 
C) C 
D) D 
E) G C

Question 2

Which muscle originates at the anterior and lateral surfaces of the femoral body?

Accepted Answer

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

Question 3

What anatomical structures of the musculoskeletal system correspond to the components of a lever system? Describe the arrangement of these parts in first,second,and third class lever systems.

Accepted Answer

The bone is the lever.The joint is the fulcrum.The muscle contraction pulling on its insertion point is the effort.The weight of the part to be moved is the resistance.A first class lever has the fulcrum between the effort and the resistance;a second class lever has the resistance in the middle;the third class lever has the effort in the middle.In all cases,the lever moves around the fulcrum.

Question 4

Where is the semitendinosus?

Accepted Answer

A) J 
B) K 
C) L 
D) M 
E) N 
A) J 
B) K 
C) L 
D) M 
E) N

Question 5

Briefly describe the three categories of levers based on the position of their fulcrum.Give an example of each type of lever and state whether the lever works at a mechanical advantage,disadvantage or both.

Accepted Answer

If the fulcrum is between the effort and

Question 6

"How much wood would a woodchuck chuck if a woodchuck could chuck wood" is difficult to say.What muscles work together to allow this to be spoken?

Accepted Answer

A) masseter,buccinators,temporalis,platysma 
B) palatoglossus,styloglossus,genioglossus,hyoglossus 
C) risorius,zygomaticus minor,zygomaticus major 
D) mentalis,orbicularis oris,levator labii superioris 
E) sternohyoid,omohyoid,sternothyroid 
A) masseter,buccinators,temporalis,platysma 
B) palatoglossus,styloglossus,genioglossus,hyoglossus 
C) risorius,zygomaticus minor,zygomaticus major 
D) mentalis,orbicularis oris,levator labii superioris 
E) sternohyoid,omohyoid,sternothyroid

Question 7

Where is the abductor digiti minimi?

Accepted Answer

A) B 
B) C 
C) E 
D) F 
E) G 
A) B 
B) C 
C) E 
D) F 
E) G

Question 8

)Your friend nods back and forth to you,making the yes motion.What lever system is being represented by this 'yes' motion?

Accepted Answer

A) First-class lever 
B) Second-class lever 
C) Third-class lever 
A) First-class lever 
B) Second-class lever 
C) Third-class lever

Question 9

Protrusion of an organ through a structure that normally contains it is referred to as a

Accepted Answer

A) hernia. 
B) goiter. 
C) strain. 
D) sprain. 
E) hydrocele. 
A) hernia. 
B) goiter. 
C) strain. 
D) sprain. 
E) hydrocele.

Question 10

This muscle,which is found in the neck,functions to elevate the hyoid bone and help press the tongue against the roof of the mouth during swallowing.

Accepted Answer

A) mylohyoid 
B) sternothryroid 
C) sternocleidomastoid 
D) digastric 
E) masseter 
A) mylohyoid 
B) sternothryroid 
C) sternocleidomastoid 
D) digastric 
E) masseter

Question 11

What is the antagonist of the muscle labeled B?

Accepted Answer

A) corrugator supericilii 
B) temporalis 
C) levator palpebrae superioris 
D) occipitofrontalis 
E) levator labii superioris 
A) corrugator supericilii 
B) temporalis 
C) levator palpebrae superioris 
D) occipitofrontalis 
E) levator labii superioris

Question 12

Discuss the roles of agonists,antagonists,synergists,and fixators in movement.

Accepted Answer

The agonist (prime mover)contracts to ca

Question 13

Acting unilaterally,which muscle in this figure can rotate the vertebral column?

Accepted Answer

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

Question 14

What is the action of the muscle labeled G?

Accepted Answer

A) adducts and medially rotates arm at shoulder joint 
B) abducting arm at shoulder joint 
C) laterally rotates arm at shoulder joint 
D) laterally rotates and extends arm at shoulder joint 
E) extends forearm at elbow joint 
A) adducts and medially rotates arm at shoulder joint 
B) abducting arm at shoulder joint 
C) laterally rotates arm at shoulder joint 
D) laterally rotates and extends arm at shoulder joint 
E) extends forearm at elbow joint

Question 15

Name the three groups of muscles constituting the intrinsic muscles of the hand.Briefly describe the structure and function of each of these groups.

Accepted Answer

1.Thenar:four muscles that act on the th

Question 16

Which of these muscles has fascicles parallel to the midline?

Accepted Answer

A) external obliques 
B) transverse abdominis 
C) rectus femoris 
D) biceps femoris 
E) orbicularis oculi 
A) external obliques 
B) transverse abdominis 
C) rectus femoris 
D) biceps femoris 
E) orbicularis oculi

Question 17

This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently.

Accepted Answer

A) synergist 
B) agonist 
C) antagonist 
D) fixator 
E) secondary mover 
A) synergist 
B) agonist 
C) antagonist 
D) fixator 
E) secondary mover

Question 18

jWhich of these groups includes only muscles that move the humerus but do NOT originate on the axial skeleton?

Accepted Answer

A) serratus anterior,latissimus dorsi,trapezius 
B) supraspinatus,teres major,teres minor,infraspinatus 
C) deltoid,brachioradialis,latissimus dorsi,pectoralis major 
D) trapezius,pectoralis minor,pectoralis major,triceps brachii 
E) triceps brachii,biceps brachii,brachioradialis 
A) serratus anterior,latissimus dorsi,trapezius 
B) supraspinatus,teres major,teres minor,infraspinatus 
C) deltoid,brachioradialis,latissimus dorsi,pectoralis major 
D) trapezius,pectoralis minor,pectoralis major,triceps brachii 
E) triceps brachii,biceps brachii,brachioradialis

Question 19

Fascia over deltoid and pectoralis muscles are the origin of the muscle labeled

Accepted Answer

A) R 
B) D 
C) C 
D) E 
E) G 
A) R 
B) D 
C) C 
D) E 
E) G

Question 20

A 1 year old child presents with crossed eyes.While she seems fine and is able to recognize people,the patient is diagnosed with

Accepted Answer

A) nystagmus. 
B) strabismus. 
C) presbyopia. 
D) myopia. 
E) hypermetropia. 
A) nystagmus. 
B) strabismus. 
C) presbyopia. 
D) myopia. 
E) hypermetropia.

Exam 11: The Muscular System

Where is the sartorius?

Which muscle originates at the anterior and lateral surfaces of the femoral body?

What anatomical structures of the musculoskeletal system correspond to the components of a lever system? Describe the arrangement of these parts in first,second,and third class lever systems.

Where is the semitendinosus?

Briefly describe the three categories of levers based on the position of their fulcrum.Give an example of each type of lever and state whether the lever works at a mechanical advantage,disadvantage or both.

"How much wood would a woodchuck chuck if a woodchuck could chuck wood" is difficult to say.What muscles work together to allow this to be spoken?

Where is the abductor digiti minimi?

)Your friend nods back and forth to you,making the yes motion.What lever system is being represented by this 'yes' motion?

Protrusion of an organ through a structure that normally contains it is referred to as a

This muscle,which is found in the neck,functions to elevate the hyoid bone and help press the tongue against the roof of the mouth during swallowing.

What is the antagonist of the muscle labeled B?

Discuss the roles of agonists,antagonists,synergists,and fixators in movement.

Acting unilaterally,which muscle in this figure can rotate the vertebral column?

What is the action of the muscle labeled G?

Name the three groups of muscles constituting the intrinsic muscles of the hand.Briefly describe the structure and function of each of these groups.

Which of these muscles has fascicles parallel to the midline?

This type of muscle works by stabilizing the origin of the agonist so that it can act more efficiently.

jWhich of these groups includes only muscles that move the humerus but do NOT originate on the axial skeleton?

Fascia over deltoid and pectoralis muscles are the origin of the muscle labeled

A 1 year old child presents with crossed eyes.While she seems fine and is able to recognize people,the patient is diagnosed with

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

Muscular Tissue

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

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