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Physiology
Week 7
| Question | Answer |
|---|---|
| What is Homeostasis | Relatively constant states maintained by the body |
| What are the four major groups of organic substances found in the human body | 1. Carbohydrates 2. Lipids 3. Proteins 4. Nucleic acids and related molecules |
| Golgi Apparatus | A membranous organelle consisting of tiny sacs, stacked on one another, located near the nucleus |
| What is Mitochondria | "power plant" Consists of two membranes, formed from a sac within a sac, inner membrane is contorted into folds called cristae |
| Cell Structure | 1.Plasma Membrane 2. Cytoplasm 3.Nucleus |
| Four principal types of tissue | 1. Epithelial tissue 2. Connective tissue 3. Muscle tissue 4. Nervous tissue |
| Two primary layers of the skin | 1. Epidermis: superficial, thinner layer 2. Dermis: deep, thicker layer |
| Four functions of the skin | 1. Protection 2. Sensation 3. Flexibility 4. Excretion |
| What is Action Potential | The membrane potential of an active neuron |
| Three characteristics of skeletal muscle cells | 1. Excitability 2. Contractility 3. Extensibility |