Muscle Etymology
Rotator Cuff Crew
Origin + Insertion
Fun Muscle Facts
Name That Muscle
100
This muscle's name means "two-headed muscle."
What is the biceps brachii?
100
This joint connects the humerus to the scapula.
What is the glenohumeral joint?
100
The biceps brachii inserts on this forearm bone.
What is the radius?
100
Humans are born with about this many muscles.
What is approximately 600 muscles?
100
This powerful, thick, rectangular muscle is located in the cheek and serves as a primary muscle of mastication (chewing).
What is the masseter?
200
The term "gluteus maximus" is Latin for this.
What is the largest buttock muscle?
200
Which rotator cuff muscle has "minor" in its name?
What is teres minor?
200
This muscle originates on the clavicle and sternum and inserts on the mastoid process.
What is the sternocleidomastoid?
200
This jaw muscle is considered the strongest muscle in the body based on its size.
What is the masseter?
200
This muscle extends from the collarbone to the angle of the mouth, primarily functioning to move the lower face and neck skin, tense the neck skin, and create expressions of tension, stress, or horror.
What is the platysma?
300
The muscle name "deltoid" refers to its resemblance to this Greek letter.
What is delta (Δ)?
300
The acronym "SITS" stands for these four muscles that make up the rotator cuff.
What are Supraspinatus, Infraspinatus, Teres minor, and Subscapularis.
300
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The gastrocnemius inserts onto this structure through the Achilles tendon.
What is the calcaneus?
300
Older adults (60+) can take up to this long for their muscles to repair after intense exercise.
What is a week?
300
This muscle is a key facial muscle that primarily functions to pull the angle of the mouth superolaterally (upward and outward), acting as a primary "laughing muscle" to create smiles, express joy, and convey emotions like contempt.
What is the zygomaticus major?
400
"Sternocleidomastoid" tells you the muscle attaches to these three structures.
What are the sternum, clavicle, and mastoid process?
400
This muscle is the only one located on the anterior side of the scapula.
What is the subscapularis?
400
This wide back muscle originates from the thoracolumbar fascia and inserts into the humerus.
What is the latissimus dorsi?
400
Most muscle repair and growth happens during this activity.
What is sleep?
400
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Known as the "kissing muscle," this muscle is a complex, circular muscle surrounding the mouth that functions primarily to close, pucker, and shape the lips.
What is the orbicularis oris?
500
The Latin word "latissimus" in latissimus dorsi means this.
What is "broadest" or "widest"?
500
This muscle initiates arm abduction.
What is the supraspinatus?
500
This muscle originates on the anterior iliac crest and inserts into the iliotibial tract.
What is the tensor fasciae latae?
500
This muscle can contract over 100,000 times per day.
What is the diaphragm?
500
This slender facial muscle, known as the "smiling muscle," functions primarily to pull the corners of the mouth laterally and slightly upward, producing smiles, grins, or grimaces.
What is the risorius?