Question 1

The type of muscle found in the uterus, blood vessels, and urinary bladder is known as ____ muscle.&#8203;&#10;A) &#8203;striated&#10;B) &#8203;skeletal&#10;C) &#8203;cardiac&#10;D) &#8203;smooth

Accepted Answer

Smooth muscle is found in the walls of the uterus, blood vessels, and urinary bladder. Striated muscle is skeletal and cardiac muscle. Skeletal muscle is attached to bones and is responsible for movement, while cardiac muscle makes up the heart.

Question 2

As the nerve impulse of an axon reaches the neuromuscular junction, it triggers the release of a neurotransmitter called ____.&#8203;&#10;A) &#8203;acetylcholine&#10;B) &#8203;dopamine&#10;C) &#8203;epinephrine&#10;D) &#8203;norepinephrine

Accepted Answer

The neurotransmitter released at the neuromuscular junction is acetylcholine. This neurotransmitter is responsible for stimulating muscle contraction.

Question 3

&#8203;In the small intestine, smooth muscle is arranged in two layers: an outer longitudinal layer and an inner ____ layer.&#10;A) &#8203;transverse&#10;B) &#8203;circular&#10;C) &#8203;sagittal&#10;D) &#8203;rectus

Accepted Answer

A

Question 4

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.&#8203;&#10;A) &#8203;fatty acid&#10;B) &#8203;phosphocreatine&#10;C) &#8203;lactic acid&#10;D) &#8203;glucose

Accepted Answer

When oxygen is not available to a muscle cell during exercise, anaerobic respiration occurs and pyruvic acid is converted to lactic acid. Lactic acid builds up in the muscle cell and can cause fatigue and muscle soreness.

Question 5

The movable attachment, where the effects of muscle contraction are seen, is called the origin.&#8203;

Accepted Answer

The movable attachment is called the insertion, while the origin is the fixed attachment point for a muscle.

Question 6

In performing any given movement, the muscles performing the actual movement are called the prime movers or agonists.&#8203;

Accepted Answer

The muscles performing the actual movement are called prime movers or agonists.

Question 7

Skeletal muscle is involuntary.&#8203;

Accepted Answer

Skeletal muscle is voluntary, meaning that it is under conscious control by the individual. Examples of skeletal muscle include the muscles used for movement, such as those in the arms and legs. Involuntary muscles include smooth muscle (found in internal organs like the digestive tract) and cardiac muscle (found in the heart).

Question 8

What is the molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction?&#8203;&#10;A) &#8203;lactic acid&#10;B) &#8203;creatine&#10;C) &#8203;phosphocreatine&#10;D) &#8203;fatty acids

Accepted Answer

Phosphocreatine is a molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction. Lactic acid is produced during anaerobic respiration in muscles, but it is not specific to muscle tissue. Fatty acids are a source of energy for muscles during prolonged exercise, but they are not a rapid source of high-energy ATP.

Question 9

The brachialis, the biceps brachii, and the brachioradialis muscles flex the ____ at the elbow.&#8203;&#10;A) &#8203;forearm&#10;B) &#8203;wrist&#10;C) &#8203;arm&#10;D) &#8203;shoulder

Accepted Answer

The brachialis, biceps brachii, and brachioradialis muscles are responsible for flexing the forearm at the elbow joint. Therefore, the correct answer is A) forearm.

Question 10

Adductor, flexor, and extensor muscles are named according to their ____.&#8203;&#10;A) &#8203;number of origin&#10;B) &#8203;shape&#10;C) &#8203;action&#10;D) &#8203;location

Accepted Answer

Adductor, flexor, and extensor muscles are named according to their action. Adductor muscles bring limbs closer to the midline of the body, flexor muscles bend joints, and extensor muscles straighten joints. Naming muscles based on their action helps us understand their role in movement and function.

Question 11

The ____ rectus muscle raises the eye.&#8203;&#10;A) &#8203;inferior&#10;B) &#8203;superior&#10;C) &#8203;medial&#10;D) &#8203;lateral

Accepted Answer

The answer of The ____ rectus muscle raises the eye.&#8203;&#10;A)...

Question 12

The light bands are made of the thin filaments of the protein ____.&#8203;&#10;A) &#8203;myosin&#10;B) &#8203;actin&#10;C) &#8203;tropomyosin&#10;D) &#8203;troponin

Accepted Answer

The answer of The light bands are made of the...

Question 13

Tendons that are wide and flat form what is known as a(n) ____.&#8203;&#10;A) &#8203;filament&#10;B) &#8203;ligament&#10;C) &#8203;striation&#10;D) &#8203;aponeurosis

Accepted Answer

The answer of Tendons that are wide and flat form...

Question 14

The ____ muscle raises your eyebrows and wrinkles the skin of your forehead.&#8203;&#10;A) &#8203;occipitalis&#10;B) &#8203;frontalis&#10;C) &#8203;zygomaticus&#10;D) &#8203;buccinators

Accepted Answer

The answer of The ____ muscle raises your eyebrows and...

Question 15

Each individual bundle of muscle cells is called a ____.&#8203;&#10;A) &#8203;fascicle&#10;B) &#8203;muscle fiber&#10;C) &#8203;myofibril&#10;D) &#8203;microfilament

Accepted Answer

The answer of Each individual bundle of muscle cells is...

Question 16

The coarse irregular connective tissue that surrounds the whole muscle is called the ____.&#8203;&#10;A) &#8203;perimysium&#10;B) &#8203;endomysium&#10;C) &#8203;fasciculi&#10;D) &#8203;epimysium

Accepted Answer

The answer of The coarse irregular connective tissue that surrounds...

Question 17

The ____ is a delicate connective tissue that surrounds the sarcolemma.&#8203;&#10;A) &#8203;fasciculi&#10;B) &#8203;epimysium&#10;C) &#8203;endomysium&#10;D) &#8203;perimysium

Accepted Answer

The answer of The ____ is a delicate connective tissue...

Question 18

The dark bands of skeletal muscle are made of thick filaments (myosin).&#8203;

Accepted Answer

The answer of The dark bands of skeletal muscle are...

Question 19

When lifting a weight, muscles become shorter and thicker but the tone or tension remains the same and is referred to as isometric contraction.&#8203;

Accepted Answer

The answer of When lifting a weight, muscles become shorter...

Question 20

Which type of striated muscle is controlled by the autonomic nervous system?&#8203;&#10;A) &#8203;cardiac&#10;B) &#8203;smooth&#10;C) &#8203;skeletal&#10;D) &#8203;voluntary

Accepted Answer

The answer of Which type of striated muscle is controlled...

Question 21

Muscle cells have positively charged ____ ions in greater concentration outside the muscle cell than inside the cell.&#8203;&#10;A) &#8203;sodium&#10;B) &#8203;potassium&#10;C) &#8203;chloride&#10;D) &#8203;calcium

Accepted Answer

The answer of Muscle cells have positively charged ____ ions...

Question 22

The area between two adjacent Z lines is called a(n) ____________________.&#8203;

Accepted Answer

The answer of The area between two adjacent Z lines...

Question 23

The action potential traveling down the T tubule causes the sarcoplasmic reticulum to release ____ ions into the fluids surrounding the myofibrils.&#8203;&#10;A) &#8203;sodium&#10;B) &#8203;potassium&#10;C) &#8203;chloride&#10;D) &#8203;calcium

Accepted Answer

The answer of The action potential traveling down the T...

Question 24

The flexor digitorum muscles flex the ____.&#8203;&#10;A) &#8203;wrist&#10;B) &#8203;elbow&#10;C) &#8203;toes&#10;D) &#8203;fingers

Accepted Answer

The answer of The flexor digitorum muscles flex the ____.&#8203;&#10;A)...

Question 25

A decrease in muscle bulk due to a lack of exercise is called ____.&#8203;&#10;A) &#8203;dystrophy&#10;B) &#8203;atrophy&#10;C) &#8203;hypertrophy&#10;D) &#8203;anatrophy

Accepted Answer

The answer of A decrease in muscle bulk due to...

Question 26

All of the muscle cells or fibers innervated by one motor neuron is called a(n) ____________________.&#8203;

Accepted Answer

The answer of All of the muscle cells or fibers...

Question 27

The extensor digitorum communis muscle extends the ____ joint in conjunction with the three extensor carpi muscles.&#8203;&#10;A) &#8203;elbow&#10;B) &#8203;shoulder&#10;C) &#8203;wrist&#10;D) &#8203;intercarpal

Accepted Answer

The answer of The extensor digitorum communis muscle extends the...

Question 28

Also known as Lou Gehrig's disease, ____ is a progressive, degenerative disease of the motor neurons.&#8203;&#10;A) &#8203;myasthenia gravis&#10;B) &#8203;muscular dystrophy&#10;C) &#8203;amyotrophic lateral sclerosis&#10;D) &#8203;tetanus

Accepted Answer

The answer of Also known as Lou Gehrig's disease, ____...

Question 29

Rapid, uncontrolled contraction of individual cells in the heart is known as ____________________.&#8203;

Accepted Answer

The answer of Rapid, uncontrolled contraction of individual cells in...

Question 30

Because skeletal muscles are much longer than their width, they are often called muscle ____.&#8203;&#10;A) &#8203;ligaments&#10;B) &#8203;fibers&#10;C) &#8203;filaments&#10;D) &#8203;striations

Accepted Answer

The answer of Because skeletal muscles are much longer than...

Question 31

Muscles maintain a constant state of partial contraction known as ____________________.

Accepted Answer

The answer of Muscles maintain a constant state of partial...

Question 32

Inflammation of a tendon is called ____.&#8203;&#10;A) &#8203;tendonitis&#10;B) &#8203;ligament&#10;C) &#8203;hypertrophy&#10;D) &#8203;bursitis

Accepted Answer

The answer of Inflammation of a tendon is called ____.&#8203;&#10;A)...

Question 33

The electrically polarized cell membrane of a skeletal muscle cell is called the ____________________.&#8203;

Accepted Answer

The answer of The electrically polarized cell membrane of a...

Question 34

The muscle we develop when we do sit-ups is the ____.&#8203;&#10;A) &#8203;transversus abdominis&#10;B) &#8203;external oblique&#10;C) &#8203;rectus abdominis&#10;D) &#8203;internal oblique

Accepted Answer

The answer of The muscle we develop when we do...

Question 35

A form of rheumatism that does not affect the joints is called ____.&#8203;&#10;A) &#8203;tendinitis&#10;B) &#8203;tetanus&#10;C) &#8203;myasthenia gravis&#10;D) &#8203;fibromyalgia

Accepted Answer

The answer of A form of rheumatism that does not...

Question 36

The biceps femoris, the semitendinosus, and the semimembranosus muscles are also known as the ____.&#8203;&#10;A) &#8203;carpals&#10;B) &#8203;hamstrings&#10;C) &#8203;rotator cuff&#10;D) &#8203;tarsals

Accepted Answer

The answer of The biceps femoris, the semitendinosus, and the...

Question 37

Muscles that raise a part of the body are called ____.&#8203;&#10;A) &#8203;levators&#10;B) &#8203;flexors&#10;C) &#8203;rotators&#10;D) &#8203;depressors

Accepted Answer

The answer of Muscles that raise a part of the...

Question 38

The main muscle used in breathing is the ____.&#8203;&#10;A) &#8203;diaphragm&#10;B) &#8203;transversus abdominis&#10;C) &#8203;internal oblique&#10;D) &#8203;quadratus

Accepted Answer

The answer of The main muscle used in breathing is...

Question 39

Muscles that bend a limb at a joint are called ____. &#8203;&#10;A) &#8203;extensors&#10;B) &#8203;abductors&#10;C) &#8203;flexors&#10;D) &#8203;adductors

Accepted Answer

The answer of Muscles that bend a limb at a...

Question 40

Muscles that move a limb away from the midline are called ____.&#8203;&#10;A) &#8203;extensors&#10;B) &#8203;abductors&#10;C) &#8203;flexors&#10;D) &#8203;adductors

Accepted Answer

The answer of Muscles that move a limb away from...

Question 41

Matching&#10;Match the description with the corresponding term.&#8203;&#10;a.&#8203;sternocleidomastoid&#10;b.&#8203;pectoralis major&#10;c.&#8203;orbicularis oris&#10;d.&#8203;masseter&#10;e.&#8203;abductor pollicis&#10;f.&#8203;psoas&#10;g.&#8203;biceps femoris&#10;h.&#8203;quadriceps femoris&#10;i.&#8203;abductor pollicis&#10;j.soleus&#10;&#8203;extends the great toe

Accepted Answer