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WorksheetsMuscular System
Total questions: 100
Worksheet time: 50mins
Which of the following structures is NOT typically included when describing the functions and structures of the muscular system?
Muscle fibers
Fascia
Tendons
Ligaments
Explain how the naming of muscles can help in understanding their function or location in the body.
Muscle names often indicate their function, location, or shape, aiding in identification and understanding.
Muscle names are chosen randomly and do not provide any useful information.
Muscle names only refer to their color.
Muscle names are based solely on the discoverer's name.
Which of the following is a function of the muscular system?
Muscles produce hormones
Muscles hold the body erect and make movement possible
Muscles filter toxins from the blood
Muscles store calcium
Approximately what percentage of the heat that keeps the body warm is generated by muscle movement?
50%
70%
85%
100%
How do muscles contribute to the digestive system?
By producing digestive enzymes
By moving food through the digestive system
By absorbing nutrients
By neutralizing stomach acid
Which muscle movement aids the flow of blood through veins?
Breathing
Walking
Sleeping
Eating
Explain how muscle movements, such as walking, assist in the circulation of blood through veins.
Muscle movements compress veins, helping push blood toward the heart
Muscle movements increase blood pressure directly
Muscle movements produce hormones that thin the blood
Muscle movements absorb excess fluid from the blood
A patient is experiencing difficulty moving food through their digestive system. Based on your understanding of muscular system functions, which part of the system might be impaired?
The muscles responsible for peristalsis in the digestive tract
The muscles in the respiratory system
The muscles in the skeletal system
The muscles in the circulatory system
Which systems are referred to jointly by the term "musculoskeletal system"?
Muscular and skeletal systems
Nervous and muscular systems
Skeletal and circulatory systems
Digestive and muscular systems
What percentage of the body's weight is made up by muscles?
10–15%
20–25%
40–45%
60–65%
What is the primary function of the musculoskeletal system?
To digest food
To provide form, support, stability, and the ability to move
To circulate blood
To produce hormones
Skeletal muscles are attached to bones by which structure?
Ligaments
Cartilage
Tendons
Nerves
Explain how the structure of skeletal muscles contributes to their function in the body.
They are made up of fibers covered with fascia and attached to bones by tendons, allowing movement and support.
They are made up of cartilage, which provides flexibility.
They are made up of nerves, which transmit signals.
They are made up of blood vessels, which supply nutrients.
Given that the body has more than 600 muscles making up about 40–45% of the body’s weight, reason how muscle mass might affect a person’s overall body weight and physical abilities.
Higher muscle mass increases body weight and enhances physical strength and movement.
Higher muscle mass decreases body weight and reduces physical abilities.
Muscle mass has no effect on body weight or physical abilities.
Muscle mass only affects mental abilities, not physical ones.
Which of the following best describes muscle fibers?
Short, round cells that make up bones
Long, slender cells that make up muscles
Flat, wide cells that make up skin
Irregular cells that make up nerves
What is the role of connective tissue in muscles?
It produces energy for muscle contraction
It binds groups of muscle fibers together
It transmits nerve impulses to muscles
It stores calcium for muscle function
Which statement accurately describes fascia?
Fascia is a type of muscle fiber
Fascia is a band of connective tissue that envelops, separates, or binds muscles
Fascia is a nerve that controls muscle movement
Fascia is a bone that supports muscles
Why is fascia considered flexible?
To allow blood flow through muscles
To allow muscle movements
To transmit electrical signals
To store nutrients for muscles
The term "myofascial" refers to which of the following?
Pertaining to bone and connective tissue
Pertaining to nerve and muscle tissue
Pertaining to muscle tissue and fascia
Pertaining to skin and muscle tissue
Explain how fascia contributes to the organization and function of muscles in the body.
Fascia stores energy for muscle contraction
Fascia envelops, separates, or binds muscles, allowing for organized structure and flexible movement
Fascia transmits nerve impulses to muscle fibers
Fascia produces hormones that regulate muscle growth
Which structure attaches muscle to bone?
Tendon
Ligament
Cartilage
Nerve
What is the primary function of the patellar tendon?
Attaches muscles to the bottom of the patella (kneecap)
Connects muscles to the heel bone
Joins bone to bone
Covers the surface of muscles
Which tendon attaches the gastrocnemius muscle to the heel bone?
Achilles tendon
Patellar tendon
Aponeurosis
Ligament
What is an aponeurosis?
A sheet-like fibrous connective tissue resembling a flattened tendon that connects muscles together or to bone
A narrow band of nonelastic, dense, fibrous connective tissue
A structure that joins bone to bone
A muscle fiber
Explain the difference between tendons and ligaments based on their function.
Tendons attach muscle to bone, while ligaments join bone to bone.
Tendons join bone to bone, while ligaments attach muscle to bone.
Both tendons and ligaments attach muscle to bone.
Both tendons and ligaments join bone to bone.
Given a patient with a torn Achilles tendon, which muscle's attachment to the heel bone is affected?
Gastrocnemius muscle
Biceps brachii muscle
Quadriceps muscle
Deltoid muscle
Which type of muscle is attached to the bones and makes body motions possible?
Skeletal muscle
Smooth muscle
Myocardial muscle
Cardiac muscle
Which type of muscle is found in the walls of internal organs and is involuntary and unstriated?
Skeletal muscle
Smooth muscle
Myocardial muscle
Cardiac muscle
What is another name for myocardial muscle?
Skeletal muscle
Cardiac muscle
Visceral muscle
Striated muscle
Which muscle type is voluntary and striated?
Skeletal muscle
Smooth muscle
Myocardial muscle
Cardiac muscle
Compare the appearance and function of myocardial muscle to skeletal and smooth muscle.
Myocardial muscle appears similar to striated skeletal muscle but is involuntary like smooth muscle.
Myocardial muscle is unstriated and voluntary like smooth muscle.
Myocardial muscle is striated and voluntary like skeletal muscle.
Myocardial muscle is unstriated and involuntary like skeletal muscle.
Explain why the constant contraction and relaxation of myocardial muscle is important for the body.
It causes the heartbeat, which is essential for circulating blood throughout the body.
It allows voluntary movement of the limbs.
It helps in digestion by moving food through the intestines.
It supports the structure of bones.
What happens to a muscle when the stimulation from a motor nerve stops?
The muscle contracts
The muscle relaxes
The muscle becomes stronger
The muscle grows in size
Which of the following best describes the function of motor nerves?
They control involuntary muscle movements
They transmit sensory information to the brain
They control the body’s voluntary muscular contractions
They regulate hormone production
If a nerve impulse to a muscle is disrupted due to injury or disease, what is a possible consequence?
The muscle will grow larger
The muscle is unable to function properly
The muscle will become more flexible
The muscle will heal faster
What does the term "neuromuscular" refer to?
The relationship between two muscles
The relationship between a nerve and a muscle
The relationship between two nerves
The relationship between bone and muscle
A patient is unable to contract a muscle after a nerve injury. Using your understanding of muscle innervation, explain why this occurs.
The muscle is receiving too many impulses
The nerve impulse is disrupted, so the muscle cannot contract properly
The muscle is over-stimulated and cannot relax
The muscle is not attached to the bone
Which statement best describes antagonistic muscle pairs?
They work together to produce the same motion.
They work in opposition to each other.
They always contract at the same time.
They never relax.
What happens when one muscle of an antagonistic pair contracts?
The opposite muscle also contracts.
The opposite muscle relaxes.
Both muscles relax.
Both muscles contract and relax simultaneously.
What is the definition of muscle contraction?
The lengthening of a muscle.
The tightening of a muscle.
The relaxation of a muscle.
The stretching of a muscle.
During extension of the upper arm, which muscle is contracted?
Biceps
Triceps
Deltoid
Pectoral
During flexion of the upper arm, which muscle is contracted?
Triceps
Biceps
Quadriceps
Hamstring
Why are contrasting motions important in muscle pairs?
They prevent muscles from moving.
They make contraction and relaxation possible.
They cause muscles to fatigue quickly.
They only occur in the legs.
What occurs when a muscle returns to its original form?
Contraction
Relaxation
Extension
Flexion
Identify the diagram.
Diagram of antagonistic muscle pairs in the upper arm during extension and flexion.
Diagram of the digestive system.
Diagram of the respiratory system.
Diagram of the skeletal system.
Which term describes the movement of a limb away from the midline of the body?
Abduction
Adduction
Flexion
Extension
What is the function of an adductor muscle?
Moves a body part toward the midline
Moves a body part away from the midline
Flexes a limb
Extends a limb
Which of the following best describes the difference between abduction and adduction?
Abduction moves a limb away from the midline, while adduction moves it toward the midline.
Abduction moves a limb toward the midline, while adduction moves it away from the midline.
Both abduction and adduction move a limb away from the midline.
Both abduction and adduction move a limb toward the midline.
If a person raises their arm sideways away from their body, which muscle action is occurring?
Abduction
Adduction
Rotation
Supination
A muscle that moves a body part away from the midline is called a(n):
Abductor
Adductor
Extensor
Flexor
Explain how abduction and adduction work together to allow movement of the arm.
Abduction moves the arm away from the body, and adduction brings it back toward the body, allowing for a full range of motion.
Abduction and adduction both move the arm away from the body, increasing flexibility.
Abduction and adduction both move the arm toward the body, limiting movement.
Abduction and adduction are unrelated to arm movement.
Which term describes the motion of decreasing the angle between two bones, such as bending a limb at a joint?
Flexion
Extension
Hyperextension
Rotation
What is the primary action of an extensor muscle at a joint?
Bends a limb at a joint
Straightens a limb at a joint
Rotates a limb at a joint
Abducts a limb at a joint
Which of the following best defines hyperextension?
Bending a limb at a joint
Straightening out a limb
Extreme or overextension of a limb or body part beyond its normal limit
Rotating a limb away from the body
If a person moves their hand away from their body by increasing the angle at the elbow, which muscle motion is occurring?
Flexion
Extension
Hyperextension
Abduction
Compare flexion and extension at the elbow joint. How do these motions affect the position of the hand relative to the body?
Flexion moves the hand away from the body; extension moves it toward the body.
Flexion and extension both move the hand toward the body.
Extension moves the hand away from the body; flexion moves it toward the body.
Both motions keep the hand in the same position.
What is the act of raising or lifting a body part called?
Elevation
Depression
Flexion
Extension
What is the function of a depressor muscle?
Raises a body part
Lowers a body part
Rotates a body part
Extends a body part
Which of the following best describes rotation in terms of muscle motion?
Circular movement at the far end of a limb
Circular movement around an axis such as the shoulder joint
Movement that increases the angle between two bones
Movement that brings a limb closer to the body
What is an axis in the context of muscle motion?
A bone that supports the body
A group of muscles and tendons
An imaginary line that runs lengthwise through the center of the body
The far end of a limb
What is the primary function of the rotator muscle?
To extend a limb away from the body
To turn a body part on its axis
To flex a joint
To stabilize the knee
What is the rotator cuff?
A single muscle that moves the arm
A group of muscles and their tendons that hold the head of the humerus securely in place
A ligament that connects bones in the wrist
A bone in the lower leg
How does rotation differ from circumduction in terms of movement?
Rotation involves movement at the far end of a limb, while circumduction turns a bone on its own axis.
Rotation and circumduction are the same type of movement.
Rotation turns a bone on its own axis, while circumduction is a circular movement at the far end of a limb.
Rotation only occurs in the legs, while circumduction only occurs in the arms.
Which of the following best explains the role of the rotator cuff?
It flexes the elbow joint.
It holds the head of the humerus securely in place.
It extends the knee joint.
It rotates the wrist.
A patient is unable to perform circular movement at the far end of their arm. Which type of muscle motion is most likely impaired?
Rotation
Circumduction
Flexion
Extension
Which term describes the act of rotating the arm so the palm of the hand is turned upward?
Supination
Pronation
Flexion
Extension
What is the act of rotating the arm or leg so the palm of the hand or sole of the foot is turned downward or backward called?
Supination
Pronation
Abduction
Adduction
Which of the following is a helpful way to remember the meaning of "supination"?
Think of carrying a bowl of soup
Think of opening a door
Think of kicking a ball
Think of jumping
If a person rotates their arm so the palm faces downward, which muscle motion are they performing?
Supination
Pronation
Extension
Flexion
Explain how the terms "supination" and "pronation" relate to the position of the palm of the hand. Use reasoning to distinguish between the two motions.
Supination turns the palm upward, pronation turns it downward
Supination turns the palm downward, pronation turns it upward
Both supination and pronation turn the palm upward
Both supination and pronation turn the palm downward
Which movement bends the foot upward at the ankle?
Dorsiflexion
Plantar flexion
Supination
Pronation
What does plantar mean in relation to the foot?
Pertaining to the sole of the foot
Pertaining to the top of the foot
Pertaining to the heel of the foot
Pertaining to the toes of the foot
Which action decreases the angle between the top of the foot and the front of the leg?
Pointing the toes and foot upward
Pointing the toes and foot downward
Rotating the foot outward
Flexing the knee
If a person points their toes and foot downward, what happens to the angle between the top of the foot and the front of the leg?
The angle increases
The angle decreases
The angle remains the same
The angle disappears
A physical therapist asks a patient to perform dorsiflexion. Which of the following describes the correct movement?
Bending the foot upward at the ankle
Bending the foot downward at the ankle
Rotating the foot inward
Rotating the foot outward
Compare dorsiflexion and plantar flexion in terms of their effect on the angle between the top of the foot and the front of the leg.
Dorsiflexion decreases the angle; plantar flexion increases the angle
Both dorsiflexion and plantar flexion decrease the angle
Dorsiflexion increases the angle; plantar flexion decreases the angle
Both dorsiflexion and plantar flexion increase the angle
Which term describes where a muscle begins and is located nearest the midline of the body or on a less movable part of the skeleton?
Origin
Insertion
Flexion
Extension
What is the term for where a muscle ends by attaching to a bone or tendon, and is the farthest point from the midline of the body?
Insertion
Origin
Abduction
Rotation
Which muscle helps bend the neck and rotate the head?
Sternocleidomastoid muscle
Biceps brachii
Trapezius muscle
Deltoid muscle
Why is the sternocleidomastoid muscle named as such?
Because of its origins and insertion
Because of its color
Because of its size
Because of its function only
Explain the difference between the origin and insertion of a muscle, using the sternocleidomastoid muscle as an example.
The origin is where the muscle begins, usually on a less movable part, while the insertion is where it ends, attaching to a more movable part.
The origin is where the muscle ends, and the insertion is where it begins.
Both origin and insertion are on the same bone.
The origin is always more movable than the insertion.
Which muscle is named for its action of flexion or extension of the wrist?
Flexor carpi muscles
Pectoralis major
Vastus lateralis
Vastus medialis
What does the term "pectoral" refer to in the name pectoralis major?
Relating to the chest
Relating to the arm
Relating to the leg
Relating to the back
In the muscle name "vastus lateralis," what does "lateralis" mean?
Toward the side
Toward the midline
Relating to the chest
Toward the back
How are muscles commonly named for their location?
By their location on the body or nearby organ
By their color
By their size only
By their function only
If a muscle is called "vastus medialis," what does "medialis" indicate about its location?
Toward the midline
Toward the side
Relating to the chest
Toward the back
Explain how the names "flexor carpi" and "extensor carpi" muscles relate to their function in the wrist.
They indicate the muscles' actions of bending (flexion) and straightening (extension) the wrist.
They indicate the muscles' location in the chest.
They refer to the muscles' size.
They refer to the muscles' color.
Compare the meanings of "lateralis" and "medialis" in muscle names and explain how these terms help identify muscle location.
"Lateralis" means toward the side, while "medialis" means toward the midline, helping to specify where the muscle is located on the body.
"Lateralis" means toward the chest, while "medialis" means toward the back.
"Lateralis" means huge, while "medialis" means small.
"Lateralis" means above, while "medialis" means below.
Given the muscle names "vastus lateralis" and "vastus medialis," use reasoning to determine which muscle is closer to the midline of the body and explain your answer.
Vastus medialis is closer to the midline because "medialis" means toward the midline.
Vastus lateralis is closer to the midline because "lateralis" means toward the midline.
Vastus lateralis is closer to the midline because "lateralis" means huge.
Vastus medialis is closer to the side because "medialis" means toward the side.
What muscles are covered in red in the picture?
Biceps
Triceps
Deltoid
Lats
What muscles are covered in red in the picture?
Trapezius
Deltoid
Lats
Abs
What muscle is covered in red in the picture?
Lats
Deltoid
Pectoral
Abs
What muscles are covered in red in the picture?
Hamstring
Quads
Calf
Gluteus Maximus
What muscles are covered in red in the picture?
Bicep
Tricep
Quads
Hamstring
What muscles are covered in red in the picture?
Hamstring
Quads
Calf
Gluteus Maximus
What muscles are covered in red in the picture?
Deltoid
Lats
Abs
Pectoral
