Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
amen mohammed
Anatomy weeks 1-5
| Term | Definition |
|---|---|
| sagittal plan | running from front to back and top to bottom, dividing the body or any of its parts into right and left sides, |
| TRANSVERSE PLANE | Any crosswise plane that divides the body or any of its parts into upper and lower parts i |
| Intracellular control mechanism | operate at the cell level. These mechanisms regulate functions within the cell, often by means of genes and en-zymes. |
| Intrinsic control mechanism | operate at the tissue and organ levels. Sometimes also called local control or autoregulation, intrinsic mecha-nisms often make use of chemical signals. |
| Extrinsic control | “outside” control and operates at the system and organism levels. Extrinsic control usually involves ner-vous and endocrine (hormonal) regulation. |
| Prions | are proteins that may cause misfolding of protein molecules, thus converting normal proteins of the cell into different proteins. |
| Decomposition reactions | In this type of reac-tion, chemical bonds are broken and energy is released |
| Catabolism | chemical reactions that break down larger food molecules into smaller chemical units and, in so doing, often release energy. |
| Anabolism | chemical reactions that build larger and more complex chemical molecules from smaller subunits Anabolic chemical reactions require energy—energy most often made available by the breakdown of adenosine triphos-phate (ATP) |
| Prostaglandins | 20-carbon unsaturated fatty acid containing 5-carbon ring. Regulate hormone action; enhance immune system; affect inflammatory respons |
| Peroxisomes | A Tiny membranous bags containing enzymes. Enzymes detoxify harmful substances in the cell |
| Proteasom | non membranous Hollow protein cylinders with embedded enzymes . Destroys misfolded or otherwise abnormal proteins manufactured by the cell; a “quality control” mechanism for protein synthesis |
| Nucleolus | Dense area of chromatin and related molecules within nucleus. Site of formation of ribosome subunits |
| Desmosomes | appearance of small “spot welds” that hold adjacent cells together. Adjacent skin cells are held to-gether this way. This arrangement resembles Velcro, which holds things together tightly when tiny plastic hooks become interlocked with fabric loops |
| Gap junctions | when membrane channels of adjacent plasma membranes connect to each other. the following two effects: (1) they form gaps or “tunnels” that join the cytoplasm of two cells, and (2) they fuse the two plasma membranes into a single structure. |
| Tight junctions | in cells that are joined near their apical surfaces by “collars” of tightly fused membrane |
| Pleurisy | inflammation of the serous membranes (pleurae) that line the chest cavity and cover the lungs. Pain is caused by irritation and friction as the lungs rub against the walls of the chest cavity. |
| peritonitis | nflammation of the serous membranes in the abdominal cavity. Peritonitis is sometimes a serious complication of an infected appendix |
| FUNCTIONS OF EPITHELIAL TISSUE | Protection.,Sensory functions, Secretion, Absorption.,and Excretion. |
| Apocrine glands | collect their secretory products near the apical face of the cell and then release them into a duct by pinching a vesicle off the distended end. |
| Holocrine glands | the sebaceous glands that produce oil to lubricate the skin—collect their secretory product inside the cell and then rupture completely to release it. |
| Merocrine glands | discharge their secretion product directly through the cell or plasma membrane. The salivary glands are examples of merocrine-type exocrine glands. |
Created by:
amenm