Question 1

The type of muscle found in the uterus, blood vessels, and urinary bladder is known as ____ muscle.​

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 ____.​

Accepted Answer

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

Question 3

​In the small intestine, smooth muscle is arranged in two layers: an outer longitudinal layer and an inner ____ layer.

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.​

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.​

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.​

Accepted Answer

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

Question 7

Skeletal muscle is involuntary.​

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?​

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.​

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 ____.​

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.​

Accepted Answer

The superior rectus muscle is responsible for raising the eye. The inferior rectus muscle is responsible for pulling the eye downwards, while the medial and lateral rectus muscles are responsible for moving the eye inwards and outwards, respectively.

Question 12

The light bands are made of the thin filaments of the protein ____.​

Accepted Answer

The light bands, also known as I bands, are made of the thin filaments of the protein actin.

Question 13

Tendons that are wide and flat form what is known as a(n) ____.​

Accepted Answer

Tendons that are wide and flat form what is known as an aponeurosis.

Question 14

The ____ muscle raises your eyebrows and wrinkles the skin of your forehead.​

Accepted Answer

The muscle that raises your eyebrows and wrinkles the skin of your forehead is the frontalis muscle.

Question 15

Each individual bundle of muscle cells is called a ____.​

Accepted Answer

A fascicle is a bundle of skeletal muscle cells (fibers), which is surrounded by a type of connective tissue called perimysium.

Question 16

The coarse irregular connective tissue that surrounds the whole muscle is called the ____.​

Accepted Answer

The epimysium is the tough connective tissue layer that surrounds the entire skeletal muscle, providing support and protection. The perimysium is the connective tissue that surrounds bundles of muscle fibers called fasciculi, while the endomysium is the connective tissue layer that surrounds individual muscle fibers.

Question 17

The ____ is a delicate connective tissue that surrounds the sarcolemma.​

Accepted Answer

The endomysium is a thin layer of connective tissue that surrounds individual muscle fibers and allows for flexibility and support. The fasciculi are bundles of muscle fibers that are surrounded by the perimysium, and the epimysium is a thicker layer of connective tissue that surrounds entire muscles.

Question 18

The dark bands of skeletal muscle are made of thick filaments (myosin).​

Accepted Answer

The dark bands of skeletal muscle are made up of thick filaments which are composed of myosin.

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.​

Accepted Answer

When lifting a weight, muscles undergo isotonic contraction, which involves shortening and thickening of muscles while maintaining tension. Isometric contraction involves maintaining a static position without any change in muscle length.

Question 20

Which type of striated muscle is controlled by the autonomic nervous system?​

Accepted Answer

Cardiac muscle is the type of striated muscle that is controlled by the autonomic nervous system, distinguishing it from skeletal muscle, which is under voluntary control, and smooth muscle, which is also controlled by the autonomic nervous system but is not striated.

Quiz 9: The Muscular System

The type of muscle found in the uterus, blood vessels, and urinary bladder is known as ____ muscle.​

As the nerve impulse of an axon reaches the neuromuscular junction, it triggers the release of a neurotransmitter called ____.​

​In the small intestine, smooth muscle is arranged in two layers: an outer longitudinal layer and an inner ____ layer.

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.​

The movable attachment, where the effects of muscle contraction are seen, is called the origin.​

In performing any given movement, the muscles performing the actual movement are called the prime movers or agonists.​

Skeletal muscle is involuntary.​

What is the molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction?​

The brachialis, the biceps brachii, and the brachioradialis muscles flex the ____ at the elbow.​

Adductor, flexor, and extensor muscles are named according to their ____.​

The ____ rectus muscle raises the eye.​

The light bands are made of the thin filaments of the protein ____.​

Tendons that are wide and flat form what is known as a(n) ____.​

The ____ muscle raises your eyebrows and wrinkles the skin of your forehead.​

Each individual bundle of muscle cells is called a ____.​

The coarse irregular connective tissue that surrounds the whole muscle is called the ____.​

The ____ is a delicate connective tissue that surrounds the sarcolemma.​

The dark bands of skeletal muscle are made of thick filaments (myosin).​

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

Which type of striated muscle is controlled by the autonomic nervous system?​

The type of muscle found in the uterus, blood vessels, and urinary bladder is known as ____ muscle.

As the nerve impulse of an axon reaches the neuromuscular junction, it triggers the release of a neurotransmitter called ____.

In the small intestine, smooth muscle is arranged in two layers: an outer longitudinal layer and an inner ____ layer.

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.

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

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

Skeletal muscle is involuntary.

What is the molecule that is found only in muscle tissue and provides a rapid source of high-energy ATP for muscle contraction?

The brachialis, the biceps brachii, and the brachioradialis muscles flex the ____ at the elbow.

Adductor, flexor, and extensor muscles are named according to their ____.

The ____ rectus muscle raises the eye.

The light bands are made of the thin filaments of the protein ____.

Tendons that are wide and flat form what is known as a(n) ____.

The ____ muscle raises your eyebrows and wrinkles the skin of your forehead.

Each individual bundle of muscle cells is called a ____.

The coarse irregular connective tissue that surrounds the whole muscle is called the ____.

The ____ is a delicate connective tissue that surrounds the sarcolemma.

The dark bands of skeletal muscle are made of thick filaments (myosin).

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

Which type of striated muscle is controlled by the autonomic nervous system?