Answer: Endorphins
Explanation: Endorphins are chemicals secreted by the brain also known as neurotransmitters that send electrical signals inside the nervous systems.
The factors that initiate the secretion of endorphins are stress and pain.
When endorphins are secreted they reduce feelings of pains, and in runners that cause a phenomenon called " Runners high" which allows runners to keep running without feeling pain or stress.
Answer: D. Quadriceps
Explanation:
The Quadriceps are the main muscles in the thigh and are some of the most powerful in the body due to their use in anything that requires the movement of the legs. Without the quads, we would be unable to walk, talk more of run.
The Quads along with the rest of the legs, are very important when it comes to high jump and long jump but the Quads are specially important when one needs to leap in these events because it is estimated that the leaping power needed is 80% produced in the quadriceps.
Hey!
That scan is known as the CT scan, (<span>computerized axial tomography.)
Hope this helps!</span>
Answer:
B.
Explanation:
Natural abilities that cannot be changed
hope this helps
B.
<span>The Sternum It is a long, flat bone that consists of 3 bones.
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