| A | B |
| cardiac | heart muscle |
| gluteus maximus | muscle which helps you walk, run, jump, and climb. |
| masseter | Muscle used to keep your mouth closed. |
| tetanus | Muscle which allows you to open your mouth. |
| REM | Rapid eye movement sleep when dreaming occurs. |
| smooth muscles | involuntary muscles that do not have striations (lines) running through them.. |
| skeletal muscles | voluntary muscles that are striated and allow for body movement. |
| cardiac muscle | Involuntary muscles which are striated; heart muscle. |
| voluntary muscles | Muscles controlled by thinking about moving them. |
| reflexive | When your skeletal muscles responsively move to keep you safe without thought. |
| muscle tone | The partial contractions that keep skeletal muscles partially contracted without thinking about it. |
| tendonitis | When tendons, which join muscles to bones, get inflamed. |
| antagonistic muscles | Muscle pairs which work in opposite ways ( relaxation/contraction) allowing for opposing skeletal movement. |
| extensor muscles | muscles which allow for expansion at joints. |
| flexor muscles | muscles allowing for contraction of joints. |
| biceps / triceps brachii | Antagonistic muscle pair in the upper arm. |
| atrophy | The weakening and shrinking of muscles. |
| myofibrils | small strands of protein making up muscle fibers (muscle cells). |
| filaments | the smaller thick and thin strips in myofibrils giving the muscle a striated appearance. |
| glucose | sugar molecule that gives energy to cells. |
| vascular | body tissues which have blood vessels permeating them bringing oxygen and nutrients to cells. |
| paralyzed | When part of the spinal cord is damaged not longer capable of causing voluntary muscle movement. |
| avascular | body tissues which do not have blood vessels running through them resulting in a slower healing process. |
| anaerobic | body process NOT requiring oxygen |
| aerobic | body process requiring oxygen |
| lactic acid | fermentation product made by muscle which have used up it's oxygen stores. |