Which skill involves the ability to change and control the direction or position of the body while keeping the motion quick and constant?

Question 1 options:

agility


balance


speed


power

Question 2 (1 point)
Li Qiu wants to trace the path of adrenaline as it sends a message that causes the heart to beat faster, beginning with the first step in the process and ending with the last. Where should Li Qiu start and where should he end?

Question 2 options:

heart beats faster; gland produces adrenaline


adrenaline carries message; heart beats faster


gland produces adrenaline; adrenaline carries message


gland produces adrenaline; heart beats faster

Question 3 (1 point)
Saved
Which type of contraction involves muscles lengthening as they strengthen?

Question 3 options:

concentric


eccentric


isometric


shortening

Question 4 (1 point)
Which action helps you warm up before you begin exercising?

Question 4 options:

Walk around at a normal pace.


Kick your legs back and forth.


Swing your arms gently back and forth.


Open your chest by reaching your arms behind you.

Question 5 (1 point)
Eva takes a bite of a taco, chews, and then swallows. As the food travels down her esophagus, what muscles are working?

Question 5 options:

agile


skeletal


smooth


secondary

Question 6 (1 point)
What word describes the muscles that support your hollow organs?

Question 6 options:

active


thick


smooth


rough

Question 7 (1 point)
Muscle physiology is a field of study. If someone is studying  muscle physiology, what are they MOST interested in learning?

Question 7 options:

the composition of cells


how muscles work


the position of tissues


how the body uses fat

Question 8 (1 point)
Lisa is getting older and wants to always have a good memory. Lisa exercises on a regular basis as she knows that this increases the body's oxygen, energy, and waste removal. What is the BEST benefit of staying fit in terms of Lisa's memory?

Question 8 options:

Staying fit removes old brain cells.


Staying fit creates new brain cells.


Staying fit returns brain cells to the blood.


Staying fit releases brain cells into pathways.

Question 9 (1 point)
When you walk, pick something up, or sit down, which muscles do you use?

Question 9 options:

skeletal


cardiac


smooth


supportive

Question 10 (1 point)
Hiro used to have to think about every movement when he was first learning to dance. Now all the movements come naturally to him, and he doesn't need to think about them. What has learning to dance built up in Hiro's body?

Question 10 options:

metabolic connections


hormones


neuron pathways


glands

Question 11 (1 point)
What is the act of muscles tightening and shrinking?

Question 11 options:

eccentric


isometric


contraction


elongation

Question 12 (1 point)
Christine's grandfather has a heart attack that damages the muscle in the walls of his heart. What muscles did the heart attack harm?

Question 12 options:

skeletal


concentric


cardiac


smooth

Question 13 (1 point)
Pedro's cousin has a disorder that causes his body to grow too fast. This is MOST likely which type of disorder?

Question 13 options:

endocrine


cardiac


eccentric


nervous

Question 14 (1 point)
When you tighten your fist, what does it do?

Question 14 options:

loosen


extend


contract


release

Question 15 (1 point)
Faith has begun exercising and eating light and brain-healthy foods. Lately, she has been feeling better rested, and it seems as though she can think about and work through problems better than before. What MOST likely explains these changes?

Question 15 options:

Faith's nervous system has eliminated pathways of neurons.


Faith's new habits have lowered her reliance on hormones.


Faith's brain has been released from managing basic physical functions.


Faith's metabolism is working at a higher level.