Muscle HW

2. ________ pairs of muscles create movement when one contracts and the other relaxes.
5. The hormone that enhances respiration and increases muscle activity is _______.
6. An ________ muscle is a muscle that moves without conscious control.
7. ________ is the process of a biological system maintaining stability by adjusting to outside conditions.
10. A _______ is a band of tough, fibrous tissue, that connects a muscle to a bone.
11. A muscle you consciously choose to move is a ________ muscle.

1. ________ muscle cells are located in muscles that are attached to the skeleton, and appear striated.
3. ________ is a hormone/nuerotransmitter that regulates heart rate and blood sugar among other things (similar to epinephrine).
4. There are about ________ muscles in the human body (write number out).
8. The type of muscle that is located in the walls of hollow organs, and is spindle-shaped are _______ muscle.
9. Muscles that are located in the walls of the heart, and appear striated are _______ muscles.
11. The defect that involves a hole in the wall that separates the ventricles of the heart is called ________ (initials).