Muscle Basics
What is a function of the muscular system?
Movement, posture/stability, heat production
What are the three types of muscles?
Skeletal, Smooth, and Cardiac
What muscle group is in your chest and helps you push?
(Dwayne 'THE ROCK' Johnson)
Pectorals
What does voluntary mean?
You can control it
What should you do before and after exercise to help prevent muscle injuries?
Warm up before and stretch after exercising.
How many muscles are in the human body?
Over 600
Which muscle type is voluntary?
Skeletal muscle
What muscle group bends your elbow?
(front of arm)
Biceps
What does involuntary mean?
It works automatically
What is the largest muscle in the body?
Gluteus Maximus
What happens to muscles when you exercise regularly?
They become stronger and more efficient.
Which muscle type is found in internal organs?
Smooth muscle
What muscle group helps lift and move your arms?
(Shoulders)
Deltoids
When one muscle contracts, the other ________.
Relaxes
What is the strongest muscle in proportion to its size?
Masseter (jaw)
What nutrient helps repair and build muscle tissue after exercise?
Protein.
Which muscle type is found only in the heart?
Cardiac muscle
What muscle group straightens your knee?
(Above your knee)
Quadriceps
What are pairs of muscles that work together called?
Agonist and antagonist pairs
What is the smallest muscle in the body?
Stapedius (in the ear)
What are two key reasons it’s important to stretch and stay hydrated for your muscles?
Stretching helps prevent injuries and improve flexibility, while hydration helps muscles work properly and avoid cramps.
What type of muscle works automatically to digest food?
Smooth muscle
Which muscle group is located in your midsection and helps stabilize your body and support your posture?
(core)
Abdominals
Which two muscles work together to move the elbow?
Biceps and triceps
It takes 17 muscles to ______ and 43 to ______.
Smile; frown