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Definition
| two or more layers of cells |
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| tissue appears to be multilayered but is really only one layer of cells. |
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| Threadlike appendages of certain cells, usually numbering no more than one or two per cell; used to propel the cell through a fluid environment. The "tail" of a human sperm cell is actually a flagellum. |
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Definition
| [sing. Cilium; L. eyelid, eyelash] short processes extending from the surface of some cells; often capable or producing a rhythmic paddling motion. Some epithelial cells have cilia, which are fingerlike projections that help propel materials past the cell. |
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| the layer of filaments and fibers that attach an epithelium to the underlying connective tissue. |
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Term
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Definition
1. Epithelial
2. Connective
3. Muscle
4. Neural |
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Definition
| Covers all surfaces of body, including external, inner lining of digestive, resspiratory, circulatory, excretory, reporductive systems, and dorsal and ventral body cavities |
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Term
| Two main categories of epithelial tissue |
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Definition
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| 5 types of Epitelial tissue |
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Definition
1. Squamous
2. Cuboidal
3. Columnar
4. Transitional
5. Goblet |
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Definition
| serves to bind or support the organs and is the most widely distributed tissue in the body. |
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Term
| 7 Types of Connective tissue |
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Definition
1. Loose connective tissue
2. Adipose
3. Dense connective tissue
4. Elastic connective tissue
5. Blood
6. Cartillage
7. Bone |
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Term
| Muscle Tissue characterized by |
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Definition
| irritability, excitability, elasticity, and contractility. |
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Term
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Definition
1. Skeletal [look for striations]
2. Smooth [no striations]
3. Cardiac [look for striations plus intercalated discs] |
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Definition
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| specialized cell junctions between heart muscle cells that facilitate teh passing of an impulse from on heart cell to the next. |
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Definition
| to coordinate systems in the body |
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Term
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Definition
1. Neuron [nerve cell]
2. Neuroglia [supporting cells] |
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Term
| Cell membrane [aka: plasma membrane] |
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Definition
forms a thin, protective layer around the cell.
- contains about 42% lipids, 55% rpoteins, and 3% carbohydrates. |
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Definition
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| some things can cross but some things can't |
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| The cell membrane acts as a ____ membrane |
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Definition
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| Factors that determine how a substance will get in and out of a cell: |
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Definition
1. molecular size
2. electrical charge
3. lipid solubility
4. carrier molecule availability
5. energy |
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Term
| What acts as channels and are found throughout the cell membrane? |
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Definition
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Definition
| found embedded in phospholipid bilayer of cell membrane |
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Definition
| found attached to surface of cell membrane |
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Definition
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Definition
requires energy from the cell
- ex. active transport, endocytosis [including pinocytosis and phagocytosis], and exocytosis |
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Definition
does not require energy expenditure from cell.
- ex. simple diffusion, facilitated diffusion, osmosis, and filtration. |
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Definition
-passive transport
-small molecules forced trhough semipermeable membrane... |
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Term
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Definition
| movement of particles from area of high concentration to are of low concentration, until equilibrium of particles is achieved |
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Definition
| difference in concentration area |
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Definition
| process in which molecules spread out randomly from heavily concentrated areas to areas of lesser concentration |
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Definition
| process by which molecules pass through cell membrane with assistance from otehr cellular structures such as large proteins |
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Definition
| proteins temporarily bind with the molecules to assist them in passing through the cell membrane. |
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Term
| What molecules use carrier proteins to enter into a cell? |
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Definition
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Definition
| is the diffusion of water molecules through a semipermeable membrane from a region of higher water concentration [lower solute concentration] to a region of lower water concentration [higher solute concentration] until equilibrium. |
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Definition
| pressure developed in a solution due to osmosis |
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| the mixture of solute and solvent |
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Definition
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| refers to teh solution [Gr. tension] |
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