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EdwinRayD
Physiology Weeks 1-6
| Term | Definition |
|---|---|
| Homeostasis | condition and state of a body being within parameters of optimal function |
| DNA | Deoxyribonucleic acid or the genetic material with essential information. Known for its double helix spiral shape due to base pairing of adenine, thymine, guanine, and cytosine. |
| Cell Membrane | The border of cells that separate intracellular components from the extracellular environment. The plasma membrane |
| Fluid Mosaic Model | Referring to the cross section of cell membranes and includes the various components in cell membranes such as the phosopholipid bilayer, carbohydrate chains, glycolipids, glycoproteins, and membrane channel proteins. |
| Nucleus | The structure or organelle in cells that hold the genetic information and is also referred to as the "control center" of cells. |
| Diffusion | Movement of particles or molecules across a concentration gradient from high concentration to low concentration. |
| Extracellular matrix | Material surrounding cells and attaches to cells as to hold cells together in tissue. |
| Collagen | Structural protein in the extracellular matrix and most abundant, making up more than one fourth of proteins in the body. |
| Axial skeleton | Bones of the skull, vertebral column, and ribs |
| Appendicular skeleton | Bones referring to the upper and lower extremities, such as the arms, legs, hands, and feet. |
| Neurotransmitter | The means for communication between neurons. More than 50 compounds are known to be neurotransmitters, released in specific locations and specific pathways. |
| Acetylcholine | A unique neurotransmitter synthesized in neurons, and has an excitatory effect usually relating to muscle contraction. |