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How well do you know the muscular system?
The muscular system is made up of skeletal, smooth, and cardiac muscles. It helps the body to move, maintain posture, and circulates blood. Here's your chance to find out how much you know about this amazing organ system.
What makes the facial expression muscles unique?
Did you know that we’re able to make around 10,000 unique facial expressions all thanks to these muscles inserting into the skin?
They insert into the skin
They insert into the bone
They insert into cartilage
They originate from the scalp
What is the insertion point of the hyoglossus?
The hyoglossus is a thin, flat sheet of muscle with fibers that run upwards. It flattens the tongue and pulls it back and down.
The wrist
The inner elbow
The side of the tongue
At the collarbone
What are these muscles called?
The triceps brachii muscles are located on the back of the upper arm and are responsible for extending the arm.
Deltoid
Triceps brachii
Trapezius
Teres major
Where is the inferior oblique muscle located?
Don’t confuse the inferior oblique with the external and internal oblique muscles which are located in the abdomen
The abdomen
The eye socket
The back
The heel
Where is the temporalis muscle located?
The temporalis muscle's main function is to move the mandible. This is what makes us chew.
Below the ear
Next to the nose
On the chin
The side of the head
What happens during flexion?
The bone moves to the center of the body
The angle between bones is decreased
The angle between bones is increased
The bone moves away from the body
What is moved LEAST during muscle contraction?
The insertion is the attachment of the end of a muscle attached to a movable bone. Although it can move, it is the part that moves the least when a muscle contracts.
The origin
The insertion
The joints
The ligaments
Which of the following muscle names does NOT make sense?
Muscles names describe the action or location and size. The extensor minimus longus muscle name describes the size and length, but not the location.
Pectoralis major
Extensor minimus longus
Biceps brachii
Gluteus maximus
Which is the correct term for moving an arm away from the body?
Abduction is the motion of a limb or appendage moving away from the midline of the body (the sagittal plane.)
Adduction
Flexor
Abduction
Extensor
Which muscle has a convergent pattern of fascicles?
Triangular-shaped muscles can have a convergent pattern of fascicles. They attach along a broad tendon at one end of the muscle, converging to a narrow tendon at the other end.
Gastrocnemius
Rectus femoris
Pectoralis major
Vastus medialis
What arrangement has fascicles running along the long axis of the muscle?
Bipennate
Circular
Fusiform
Parallel
What does the origin and insertion point of a muscle determine?
Muscles are attached at two points. One point (the insertion point) is pulled to create movement. For example, the elbow is the insertion point of the biceps muscle.
The load
The action
The force
The name
Which of the following is a prime mover in head flexion?
The sternocleidomastoids are long muscles that connect the sternum, clavicle, and other parts that help us to turn and nod our necks.
Corrugator supercillii
Occipitofrontalis
The sternocleidmastoid
The masseter
What is the erector spinae muscles group’s function?
These back muscles lie on either side of the vertebral column in an ideal position to provide postural support.
To support posture
To assist with bending over
To stabilize the pelvic girdle
To help with balance
What is the masseter muscle’s function?
An easy way to remember this is to remember that masticate means chew, or that ‘eter’ is almost ‘eater.’
Moving the lips
Blinking
Frowning
Chewing
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