Final Flashcards
How many muscles in the body?
600
What is an antagonistic muscle?
For muscles that work in pairs, while one flexes its counterpart, the antagonistic muscle, extends
What are the functions of the muscular system?
1) movement of bones
2) pumping of blood and carrying nutrients
3) controlling air movement
4) the muscle action in the esophagus, stomach and intestine help break down food
Smooth muscle also called? And?
Unstriated muscle. It’s located in the gastrointestinal tract and in blood vessels. Smooth muscles are involuntary
Striated muscle also called? And?
Skeletal muscle. Skeletal muscles account for about 40% of the body’s weight
Heart muscle is also known as?
Cardiac muscle
What’s fiber?
Thousands of cylindrical muscle cells
What is ENDOmysium?
Connective tissue surrounding each fiber
What is PERImysium?
Connective tissue surrounding a bundle of 150 fibers.
What is EPImysium?
Connective tissue surrounding the entire muscle
What is fasciculus?
A bundle of 150 fibers
What is a tendon?
Strong parallel fibers massed tightly together, connecting muscle to bone or muscle to muscle.
What is fast twitch?
Short term, sprint
What is slow twitch?
Fatigue resistant and well suited for prolonged aerobic exercise
Most outstanding ability of muscles?
The ability to contract or shorten
