Physio Lab, Week 2
About this set
Created by:
kris10b on July 4, 2009
Classes:
Anatomy Physiology, AAE HAnP Year 1
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20 terms
Terms | Definitions |
|---|---|
 molecular motion | reflects the kinetic energy of molecules |
| velocity of molecular movement | is lower in larger molecules |
| observations of egg in distilled water | the egg gained weight because the concentration of the egg, 14%, is hypertonic to the water. Water moves by osmosis from an area of higher concentration into an area of lower water concentration |
| observation of egg in 30% sucrose | the egg lost weight because the concentration of the egg, 14% is hypotonic to the 30% sucrose solution. Water moves by osmosis from an area of higher water concentration into an area of lower water concentration |
| passive processes | 1. account for the movement of fats and respiratory gases through the plasma membrane; 2. include osmosis, simple diffusion, and filtration; 3. use hydrostatic pressure or molecular energy as the driving force |
| active processes | 1. explain solute pumping, phagocytosis, and pinocytosis; 2. may occur against concentration and/or electrical gradients; 3. move ions, amino acids, and some sugars across the plasma membrane |
| epithelium | 1. lines body cavities and covers the body's external surface; 2. cells may absorb, secrete, filter; 3. synthesizes hormones; |
| muscle | 1. pumps blood, flushes urine out of the body, allows one to swing a bat; 2. major function is to contract |
| nervous; muscle | transmits electrochemical impulses |
| connective | 1. anchors, packages, and supports body organs; 2. the most durable tissue type; 3. abundant nonliving extracellular matrix; 4. most widespread tissue in the body |
| nervous | 1. forms nerves and the brain; 2. most involved in regulating and controlling body functions |
| areolar connective tissue | composes basement membranes; a soft packaging tissue with a jellylike matrix |
| dense connective tissue | 1. attaches bones to bones and muscles to bones; 2. the dermis of the skin |
| adipose connective tissue | 1. acts as a storage depot for fat; 2. insulates against heat loss |
| fibrocartilage | makes up the intevertebral discs |
| osseous tissue | 1. forms the hip bone; 2. matrix hard owing to calcium salts; 3. provides levers for muscles to act on |
| hyaline cartilage | 1. forms the larynx, the costal cartilages of the ribs, and the embryonic skeleton; 2. firm, structurally amorphous matrix heavily invaded with fibers; 3. appears glassy and smooth |
| elastic cartilage | provides a flexible framework for the external ear |
| hypertonic solution | contains more nonpenetrating solute particles that the interior of the cell |
| hypotonic solution | contains fewer nonpenetrating solute particles than the interior of the cell |
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