Misc. muscle facts
These structures are fibrous tissue with the ability to contract and stretch according to the demands of the body's movements.
What are muscles?
This scalp muscle covers the forehead, raises the eyebrows, draws the scalp forward, and causes wrinkles horizontally across the forehead.
What is the frontalis?
This muscle is associated with smiling.
What is the levator anguli oris?
These two muscles assist in chewing (AKA mastication).
What are the masseter and the temporalis?
These chest muscles allow us to swing our arms.
What are the pectoralis major and minor?
Your muscles are responsible for approximately this much of your body's weight.
What is 40 percent?
This circular muscle allows us to close our eyes.
What is the orbicularis oculi?
This two-part muscle corresponds with the nasal bones and allows us to flair the nostrils.
What is the nasalis?
The auricularis muscles are located on this part of the head.
What is around the ears?
These triangular shaped muscles cover the shoulder joint and allow us to extend the arms outward and to the side of the body.
What are the deltoids?
Out of over 630 muscles in the human body, this many are in the face.
What is 30?
This thin, flat muscle of the cheek allows us to compress the cheeks and expel air between the lips like when blowing a whistle.
What is the buccinator?
This muscle, located at the head of the eyebrow, draws the eyebrow down and wrinkles the forehead vertically.
What is the corrugator?
This muscle extends from the chest and should muscles to the side of the chin. It is responsible for lowering the lower jaw and lip.
What is the platysma?
These muscles cover the entire back of the upper arms.
What are the triceps?
These are the three types of muscle tissue.
What are skeletal (voluntary/striated), smooth (involuntary/nonstriated), and cardiac (found only in the heart)?
This muscle elevates the lower lip and raises and wrinkles the skin of the chin.
What is the mentalis?
These muscles that correspond with your cheekbones elevate the lips when you laugh.
What are the zygomaticus muscles?
The sternocleidomastoid muscle (that extends alongside the neck from the ear to the collarbone) allows us to do this with the head.
What is rotate the head from side to side and up and down?
This movement happens when muscles move to pull body parts closer to the core of the body.
What is flexion?
What is insertion to origin?
This muscle allows us to draw the corners of the mouth out and back when we are grinning.
What is the risorius?
These two muscles together form the epicranius on your scalp.
What are the occipitalis and the frontalis?
This is the proper direction to massage the muscles on the sides of the neck.
What is downward?
(Opposite direction to how we massage the muscles of the face, but still going from insertion to origin)
What is supination?