The heart-damaging chemical found in the blood that's associated with long-term depression is
a. neurotransmitters.
b. homocysteine.
c. endorphins.
d. adrenaline.

1. body tissue that is connected to and moves the bones in the body hypertrophy 2. the ability of a muscle to move a weight repeatedly, or for an extended period of time tendon 3. the increase in the size of a muscle fiber in response to resistance training muscle strength 4. the most amount of weight a muscle can move at a single time skeletal muscles 5. the decrease in the size and strength of a skeletal muscle when it is not used atrophy 6. strong body tissue that connects the muscles to the bones muscle endurance