Question 1

Muscles that cause movement of the hip attach to both the

Accepted Answer

A)  femur and tibia. 
B)  sacrum and coxal bone. 
C)  coxal bone and femur. 
D)  hip bone and the coxal bone. 
A)  femur and tibia. 
B)  sacrum and coxal bone. 
C)  coxal bone and femur. 
D)  hip bone and the coxal bone.

Question 2

This large anterior chest muscle inserts on the anterior humerus and has its origins on the clavicle,upper ribs,and sternum.It allows a person to point towards an object directly in front of him.

Accepted Answer

A)  Sternocleidomastoid 
B)  Deltoid 
C)  Erector spinae 
D)  Pectoralis major 
A)  Sternocleidomastoid 
B)  Deltoid 
C)  Erector spinae 
D)  Pectoralis major

Question 3

This long muscle lies obliquely across the anterior thigh.It allows you to sit in a crossed-leg (lotus)position.It flexes the leg at the knee and abducts and laterally rotates the thigh at the hip.

Accepted Answer

A)  Hamstrings 
B)  Quadriceps femoris 
C)  Sartorius 
D)  Gastrocnemius 
A)  Hamstrings 
B)  Quadriceps femoris 
C)  Sartorius 
D)  Gastrocnemius

Question 4

A tendon

Accepted Answer

A)  is a series of sarcomeres. 
B)  attaches muscle to bone. 
C)  forms the Z line between each sarcomere. 
D)  is also called an aponeurosis. 
A)  is a series of sarcomeres. 
B)  attaches muscle to bone. 
C)  forms the Z line between each sarcomere. 
D)  is also called an aponeurosis.

Question 5

Which of the following is an event that occurs within the neuromuscular junction?

Accepted Answer

A)  Sliding of actin and myosin 
B)  Pumping of calcium back into the SR 
C)  Binding of the acetylcholine to the nicotinic receptor on the muscle membrane 
D)  Release of calcium from the sarcoplasmic reticulum 
A)  Sliding of actin and myosin 
B)  Pumping of calcium back into the SR 
C)  Binding of the acetylcholine to the nicotinic receptor on the muscle membrane 
D)  Release of calcium from the sarcoplasmic reticulum

Question 6

The levator palpebrae superioris

Accepted Answer

A)  purses the lips. 
B)  allows one to whistle. 
C)  raises the eyelids. 
D)  wiggles the nose. 
A)  purses the lips. 
B)  allows one to whistle. 
C)  raises the eyelids. 
D)  wiggles the nose.

Question 7

Which of the following is responsible for muscle relaxation?

Accepted Answer

A)  The sarcomere runs out of ATP. 
B)  Calcium floods the area of the sarcomere, allowing for the interaction of actin and myosin. 
C)  Calcium is pumped back into the sarcoplasmic reticulum. 
D)  Acetylcholinesterase in the neuromuscular junction is depleted. 
A)  The sarcomere runs out of ATP. 
B)  Calcium floods the area of the sarcomere, allowing for the interaction of actin and myosin. 
C)  Calcium is pumped back into the sarcoplasmic reticulum. 
D)  Acetylcholinesterase in the neuromuscular junction is depleted.

Question 8

Which muscle is located in the upper back and posterior neck region (contraction of this muscle causes you to look up at the sky)?

Accepted Answer

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

Question 9

The quadriceps femoris group and the hamstrings

Accepted Answer

A)  lie along the anterior part of the leg. 
B)  flex the foot. 
C)  lie along the thigh. 
D)  shrug the shoulders. 
A)  lie along the anterior part of the leg. 
B)  flex the foot. 
C)  lie along the thigh. 
D)  shrug the shoulders.

Question 10

The rectus femoris,vastus lateralis,vastus medialis,and vastus intermedius

Accepted Answer

A)  insert on the calcaneus. 
B)  flex the leg at the knee. 
C)  are antagonistic to the quadriceps femoris. 
D)  are the muscles of the quadriceps femoris. 
A)  insert on the calcaneus. 
B)  flex the leg at the knee. 
C)  are antagonistic to the quadriceps femoris. 
D)  are the muscles of the quadriceps femoris.

Question 11

Which structure is an extension of the sarcolemma or cell membrane,which penetrates the interior of the muscle and carries the electrical signal to the deepest part of the muscle?

Accepted Answer

A)  Sarcoplasmic reticulum 
B)  T tubule 
C)  Z line 
D)  Tendon 
A)  Sarcoplasmic reticulum 
B)  T tubule 
C)  Z line 
D)  Tendon

Question 12

To which contractile protein does calcium bind?

Accepted Answer

A)  Troponin 
B)  Tropomyosin 
C)  Actin 
D)  Thick filament 
A)  Troponin 
B)  Tropomyosin 
C)  Actin 
D)  Thick filament

Question 13

Which of the following describes actin and myosin?

Accepted Answer

A)  Considered contractile proteins 
B)  Form force-generating cross-bridges 
C)  Sliding filaments 
D)  All of the above 
A)  Considered contractile proteins 
B)  Form force-generating cross-bridges 
C)  Sliding filaments 
D)  All of the above

Question 14

Which of the following is true of the chewing muscles?

Accepted Answer

A)  Must be attached to the mandible 
B)  Are smooth muscle 
C)  Are called the muscles of deglutition 
D)  Cannot tetanize 
A)  Must be attached to the mandible 
B)  Are smooth muscle 
C)  Are called the muscles of deglutition 
D)  Cannot tetanize

Question 15

This muscle group attaches to the linea alba.

Accepted Answer

A)  Hamstrings 
B)  Adductors 
C)  Abdominal 
D)  Muscles of respiration 
A)  Hamstrings 
B)  Adductors 
C)  Abdominal 
D)  Muscles of respiration

Question 16

The orbicularis oris muscle

Accepted Answer

A)  surrounds the mouth. 
B)  flexes the head. 
C)  is the smiling muscle. 
D)  closes the eye. 
A)  surrounds the mouth. 
B)  flexes the head. 
C)  is the smiling muscle. 
D)  closes the eye.

Question 17

Clinically,an elevated blood level of creatine phosphate is indicative of

Accepted Answer

A)  calcium deficiency. 
B)  muscle damage. 
C)  flaccid paralysis. 
D)  hypertrophy. 
A)  calcium deficiency. 
B)  muscle damage. 
C)  flaccid paralysis. 
D)  hypertrophy.

Question 18

Which group is incorrect?

Accepted Answer

A)  Dysfunction at the neuromuscular junction: botulism, myasthenia gravis 
B)  Contractile proteins: thin filaments, myosin, aponeurosis 
C)  Terms that describe the muscle activity of a whole muscle: twitch, tetany 
D)  Movements: flexion, supination, abduction 
A)  Dysfunction at the neuromuscular junction: botulism, myasthenia gravis 
B)  Contractile proteins: thin filaments, myosin, aponeurosis 
C)  Terms that describe the muscle activity of a whole muscle: twitch, tetany 
D)  Movements: flexion, supination, abduction

Question 19

"Make like a scarecrow" by contracting which muscle?

Accepted Answer

A)  Frontalis 
B)  Trapezius 
C)  Latissimus dorsi 
D)  Deltoid 
A)  Frontalis 
B)  Trapezius 
C)  Latissimus dorsi 
D)  Deltoid

Question 20

If you are pointing directly behind you,your ___________________ is (are)contracting.

Accepted Answer

A)  hamstrings 
B)  pectoralis major 
C)  gluteal muscles 
D)  latissimus dorsi 
A)  hamstrings 
B)  pectoralis major 
C)  gluteal muscles 
D)  latissimus dorsi

Exam 9: Muscular System

Muscles that cause movement of the hip attach to both the

This large anterior chest muscle inserts on the anterior humerus and has its origins on the clavicle,upper ribs,and sternum.It allows a person to point towards an object directly in front of him.

This long muscle lies obliquely across the anterior thigh.It allows you to sit in a crossed-leg (lotus)position.It flexes the leg at the knee and abducts and laterally rotates the thigh at the hip.

A tendon

Which of the following is an event that occurs within the neuromuscular junction?

The levator palpebrae superioris

Which of the following is responsible for muscle relaxation?

Which muscle is located in the upper back and posterior neck region (contraction of this muscle causes you to look up at the sky)?

The quadriceps femoris group and the hamstrings

The rectus femoris,vastus lateralis,vastus medialis,and vastus intermedius

Which structure is an extension of the sarcolemma or cell membrane,which penetrates the interior of the muscle and carries the electrical signal to the deepest part of the muscle?

To which contractile protein does calcium bind?

Which of the following describes actin and myosin?

Which of the following is true of the chewing muscles?

This muscle group attaches to the linea alba.

The orbicularis oris muscle

Clinically,an elevated blood level of creatine phosphate is indicative of

Which group is incorrect?

"Make like a scarecrow" by contracting which muscle?

If you are pointing directly behind you,your ___________________ is (are)contracting.

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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