| A | B |
|---|
| sarcoplasmic reticulum | network of sacs and bues surrounding myobribril muscle tissue |
| All or None principle | individual muscle fibers in a motor unit contract full or not al all. |
| tetanus | continuous contraction of a muscle |
| isotonic | muscle ontracts by becoming shorter and thicker |
| isometric | contraction where muscle has tension but remains the same length. |
| twitch | monentary contraction of a muscle |
| insertion | point of attachment of a muscle to the bone it moves. |
| origin | the end of a muscle attached to the bone that DOES NOT move. |
| oxygen debt | amount of extra oxygen needed to restore normal ATP levels |
| atrophy | when muscles shrink and become weak |
| visceral | pertaining to internal organ or cavities |
| homeostasis | maintenace of relatively stable condition. |
| deep | directional term meaning away from the surface of the body. |
| sagittal plane | same as coronal plane |
| histology | - study of the structure and function of tissues |
| stem cells | - unspecialized cell that has the ability to divide and give rise to specialized cells |
