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Chapter 9 Review
| Question | Answer |
|---|---|
| Muscles make up about ______% of a person's total body weight | 40 |
| Name the three sections that make up the brain stem | midbrain, pons and medulla oblongata |
| Adrenal gland is part of which body system | Endocrine |
| Liver is part of which body system | Gastrointestinal |
| Alveoli are part of which body system | Respiratory |
| Blood vessels are part of which body system | Cardiovascular |
| Skin is the largest organ in the human body T or F | True |
| Smooth muscles control voluntary movement T or F | False - Skeletal Muscles control voluntary movement |
| Chicken Pox is a disease of the integumentary system T or F | True |
| system for measuring a substance's acidity or alkalinity; ranges from 0 to 14 | pH scale |
| process through which cells of the body vary according to their specific function | differentiation |
| cells in the body that evolve into specific cells in a particular organ system | stem cells |
| any foreign substance, either outside or inside the body, that causes the immune system to produce antibodies | antigen |
| state of internal balance achieved by adjusting the physiological systems of the body | homeostasis |
| the outer layer of a cell that holds the cell together | cell membrane |
| the act of supplying oxygen to the cells and removing carbon dioxide | respiration |
| chemicals secreted by endocrine glands to regulate body functions | hormones |