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WorksheetsHuman Muscular System Quiz
Total questions: 71
Worksheet time: 39mins
How many muscles are there in the average adult human?
206
656
350
850
Which two muscles do NOT have a matching muscle that opposes them?
Biceps brachii and Triceps brachii
Orbicularis oris and Diaphragm
Gluteus maximus and Pectoralis major
Trapezius and Levator scapulae
Muscle names often tell us about their characteristics. Which of the following is an example of a muscle named for its size?
Erector spinae
Gluteus maximus/minimus
Trapezius
Levator scapulae
Which muscle is known as the strongest muscle?
Trapezius
Masseter
Supraspinatus
Biceps brachii
If a muscle name includes "biceps" or "triceps," what does it tell you about the muscle?
Its location
Its number of heads
Its shape
Its fiber direction
Which of the following muscle names indicates its fiber direction?
Trapezius
Erector spinae
Pectoralis major
Infraspinatus
What is the origin of the masseter muscle?
Zygomatic arch
Mandible
Frontal bone
Temporal bone
Why are most muscles in the human body arranged in oppositional pairs?
To increase muscle size
To allow for movement in opposite directions
To reduce muscle fatigue
To improve blood flow
Which muscle is responsible for raising the eyebrows and wrinkling the forehead?
Frontalis
Orbicularis Oris
Zygomaticus major
Platysma
Which muscle closes and squints the eye?
Orbicularis Oculi
Zygomaticus major
Corrugator supercilii
Platysma
The Zygomaticus major muscle is primarily involved in which facial expressions?
Smiling and laughing
Frowning
Kissing
Raising eyebrows
Which muscle pulls the eyebrows together to create a frown?
Corrugator supercilii
Frontalis
Orbicularis Oris
Platysma
What is the function of the Platysma muscle?
Pulls corners of mouth down
Raises eyebrows
Closes the eye
Smiling and laughing
Where does the sternocleidomastoid muscle originate and insert?
O: head of sternum/clavicle; I: mastoid process of temporal bone
O: frontal bone; I:sternum
O: zygomatic bone; I: clavicle
O: maxilla; I: sternum
A person is unable to squint or close their eyes tightly. Which muscle is most likely not functioning properly?
Orbicularis Oculi
Frontalis
Zygomaticus major
Platysma
What is the insertion of a muscle?
The part that is stationary and where the muscle is anchored
The part that is doing the moving
The part that is closest to the heart
The part that is furthest from the bone
What is the origin of a muscle?
The part that is stationary and where the muscle is anchored
The part that is doing the moving
The part that is closest to the heart
The part that is furthest from the bone
Which muscle is responsible for pulling the scapulae backwards?
Trapezius
Latissimus dorsi
Erector Spinae
Levator Scapulae
What is the main function of the Levator Scapulae muscle?
Lower back support
Shrug shoulders
Hold back erect
Pull scapulae backwards
Which muscle is the "rowing muscle" and provides support to the lower back?
Trapezius
Levator Scapulae
Latissimus dorsi
Erector Spinae
If a person has difficulty keeping their back straight, which muscle group might be weak?
Trapezius
Erector Spinae
Levator Scapulae
Pectorals
Which muscle is primarily responsible for breathing?
Pectoralis major
Serratus anterior
Diaphragm
External obliques
What is the main function of the pectoralis major muscle?
Stabilizes the scapula to the ribs
Brings arms across the chest
Body flexion and rotation
Attachment point for abdominal muscles
Which muscle helps stabilize the scapula to the ribs and assists in lifting the ribs and opening the chest?
External obliques
Serratus anterior
Linea alba
Inguinal ligament
What is the function of the external obliques?
Breathing only
Body flexion, lateral flexion, rotation, and forced breathing
Brings arms across the chest
Attachment point for the pectoralis major
What is the linea alba?
Major muscle of the chest
White line of the abdominal aponeurosis
Accessory breathing muscle
Deepest abdominal muscle
What is the role of the inguinal ligament?
Brings arms across the chest
Stabilizes the scapula
Attachment point for abdominal muscles and helps prevent hernias
Main muscle for breathing
A patient is experiencing difficulty with forced breathing and trunk rotation. Which muscle is most likely affected?
Diaphragm
Pectoralis major
External obliques
Linea alba
Why is the inguinal ligament important for the abdominal wall?
It helps with breathing
It brings arms across the chest
It stabilizes the abdominal wall and prevents hernias
It is the main muscle for trunk rotation
What is the main factor that determines the number of tendinous intersections (fibrous bands) in the rectus abdominis muscle?
Diet and exercise
Genetics
Age
Hydration
What is the function of fascia in the rectus abdominis muscle?
It stores fat
It divides the rectus abdominis into compartments
It produces hormones
It increases muscle strength
According to the text, what percentage of people have a six-pack configuration of abs?
2%
15%
60%
20%
Which of the following is NOT a factor that determines the number of identified muscle packs that can be seen in the rectus abdominis?
The length and depth of the Linea alba
The number and location of the tendinous inscriptions
The length of the muscle fibers in the rectus abdominis
The amount of daily exercise
A student wants to predict how many visible abs they might have. Which combination of factors should they consider?
Only their diet and exercise routine
The length and depth of the Linea alba, the number and location of tendinous inscriptions, and the length of muscle fibers
The amount of intense exercise
The type of sports they play
Which configuration of abs is the most common among people?
Two-pack
Four-pack
Six-pack
Ten-pack
If a person has four tendinous intersections in their rectus abdominis, what type of ab configuration do they have?
Two-pack
Four-pack
Six-pack
Eight-pack
Why is the distribution of body fat mentioned as genetically determined in the context of visible abs?
Because body fat affects the visibility of the muscle packs
Because body fat increases the number of muscle packs
Because body fat changes the length of the Linea alba
Because body fat determines the number of tendinous intersections
Which of the following muscles is NOT part of the rotator cuff?
Infraspinatus
Supraspinatus
Deltoid
Teres minor
What is the main function of the rotator cuff muscles and their tendons?
To move the fingers
To stabilize the shoulder joint
To support the spine
To flex the elbow
Which muscle is most likely to have its tendon torn due to a bone spur on the acromion?
Supraspinatus
Biceps brachii
Flexor carpi radialis
Brachioradialis
What is the most successful method of surgery for a “massive tear” of the rotator cuff?
Open surgery
Arthroscopic surgery
Physical therapy
Medication
After rotator cuff surgery, what is the typical monthly recovery rate?
1-2%
5-7%
12-15%
20-25%
Explain why the shoulder joint is considered the least secure of the appendage joints and how this relates to the function of the rotator cuff muscles.
The shoulder joint is the least secure because it is stabilized mainly by the rotator cuff muscles, which can become detached, making the joint vulnerable to injury.
The shoulder joint is the least secure because it is surrounded by the deltoid muscle, which is weak.
The shoulder joint is the least secure because it is not connected to any muscles.
The shoulder joint is the least secure because it is made of cartilage only.
What is the carpal tunnel?
A narrow passageway in the wrist that houses the median nerve and nine tendons.
A bone in the hand.
A muscle in the forearm.
A type of ligament in the arm.
Which nerve passes through the carpal tunnel and supplies sensation to the thumb, index, middle, and half of the ring finger?
Median nerve
Ulnar nerve
Radial nerve
Sciatic nerve
What forms the carpal tunnel?
Carpal bones and transverse carpal ligament
Radius and ulna
Flexor muscles and tendons
Phalanges and metacarpals
What is a common cause of carpal tunnel syndrome (CTS)?
Compression of the median nerve within the carpal tunnel
Fracture of the wrist bones
Dislocation of the thumb
Tearing of the extensor tendons
Why is it difficult to treat infections in the hand or foot?
Because the layers of tendons and aponeuroses limit blood supply and circulation of antibiotics.
Because the bones are too dense.
Because the muscles are too strong.
Because the skin is too thick.
Explain how the structure of the carpal tunnel allows for smooth movement of the tendons and median nerve during hand movements.
The carpal tunnel allows the tendons and median nerve to glide smoothly through the wrist during hand movements.
The carpal tunnel restricts all movement in the wrist.
The carpal tunnel only allows blood vessels to pass through.
The carpal tunnel is filled with muscle tissue that prevents movement.
Which muscle is the largest in the human body and is responsible for hip extension?
Gluteus Maximus
Rectus femoris
Gastrocnemius
Tibialis anterior
Which of the following is NOT one of the four anterior thigh muscles?
Biceps femoris
Rectus femoris
Vastus lateralis
Vastus medialis
Which of the following is a hamstring muscle?
Biceps femoris
Rectus femoris
Vastus lateralis
Vastus medialis
What is the main function of the hamstring muscles?
Flex the knee and extend the hip
Extend the elbow
Flex the wrist
Rotate the shoulder
Which muscle is commonly associated with "shin splints" due to tearing away from the tibia?
Tibialis anterior
Gastrocnemius
Semitendinosus
Rectus femoris
What does the Tendo calcaneus (Achilles Tendon) attach to?
Calcaneus heel bone
Gastrocnemius muscle
Tibialis anterior muscle
Soleus muscle
Tibial bone
Explain why repetitive hand movements might lead to swelling of the wrist, based on your understanding of muscle and tendon function. (DoK Level 3)
Because repetitive movements can cause inflammation or strain in the tendons and muscles around the wrist.
Because the wrist bones grow larger with use.
Because the muscles in the wrist become weaker.
Because the blood flow to the wrist decreases.
Which muscle is primarily responsible for flexing the forearm at the elbow?
Triceps brachii
Pectoralis major
Biceps brachii
Deltoid
What structure separates the left and right rectus abdominis muscles?
Tendinous intersections
Inguinal ligament
External oblique
Linea alba
What is the name of this muscle?
Triceps
Obliques
Gluteal Muscles
Biceps
What is the name of this muscle?
Deltoids
Obliques
Latissimus Dorsi
Trapezius
What is the name of this muscle?
Biceps
Abdominals
Hamstrings
Triceps
What is the name of this muscle?
Latissiums Dorsi
Pectoral Muscles
Erector Spinae
Quadriceps
What is the name of this muscle?
Obliques
Gastrocnemius
Triceps
Hamstrings
What is the name of this muscle?
Erector Spinae
Gastrocnemius
Quadriceps
Gluteal Muscles
What is the name of this muscle?
Hamstrings
Quadriceps
Pectoral Muscles
Gluteal Muscles
What is the name of this muscle?
Trapezius
Latissimus Dorsi
Pectoral Muscles
Abdominals
What is the name of this muscle?
Biceps
Obliques
Erector Spinae
Gastrocnemius
What is the name of this muscle?
Pectoral Muscles
Trapezius
Quadriceps
Deltoids
What is the name of this muscle?
Triceps
Deltoids
Hamstrings
Quadriceps
What is the name of this muscle?
Gastrocnemius
Trapezius
Latissimus Dorsi
Triceps
What is the name of this muscle?
Deltoids
Triceps
Obliques
Erector Spinae
