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Lab Test 1
Lab 1
24
Physiology
Undergraduate 3
03/01/2010

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Term
Endomysium
Definition

Connective tissue that covers muscle. 

 

Electrically insulates the individual muscle cells from each other.

Term
Fasiculus
Definition
Bundles of individual muscle cells
Term
Perimysium
Definition
Wraps bundles of fibers in a connective tissue sheath
Term
Tendon
Definition
Cord of dense fibrous tissue attaching muscle to bone
Term
Ligament
Definition
A band of fibrous tissue that connects bones
Term
Frequency Summation
Definition
The additive effect of rapid, repetitive contraction-many, many twitches
Term
Mulitple Motor Unit Summation
Definition
Term
Tonicity
Definition
Solute Concentration
Term
Suspension Mixture
Definition

Only remains mixed if agitated

 

Blood is

Term
True Solution
Definition

Molecules mix together (water and sucrose)

The kinetic energy of each keeps the molecules together

Term
Colloids
Definition

Not a molecular mix but doesn't seperate out

 

Falls inbetween a suspension and a true solution

Term
Hydrostatic Pressure
Definition
Pressure exerted by fluid at equilibrium due to the force of gravity
Term
Antagonists
Definition
Groups of muscles that produce oppositely directed movements at a joint
Term
Somatic Receptors
Definition
Neural receptor in the framework or outer wall of the body that responds to mechanical stimulation  of skin or hairs and underlying tissues, rotation or bending of joints, temperature changes or painful stimuli
Term
Adequate Stimulus
Definition
A stimulus to which a particular receptor responds effectively and that gives rise to a characteristic sensation
Term
Law of Specific Nerve Energies
Definition
Each type of sensory nerve ending, however stimulated (electrically, mechanically, etc.), gives rise to its own specific sensation; moreover, each type of sensation depends not upon any special character of the different nerves but upon the part of the brain in which their fibres terminate.
Term
Two Point Discrimination
Definition
Closest that two points can be together and still tell there are two points
Term
Interoreceptors
Definition
Response to change in internal enviroment
Term
Exteroreceptors
Definition
Responsive to bodies external enviroment
Term
Diffusion
Definition
Net movement of molecules from high concentration to low concentration-- kinetic energy
Term
Solvent
Definition
Liquid
Term
Solute
Definition
Solid being dissolved
Term
Active Transport
Definition

Low concentration to high concentration requires energy provided by ATP

Must have carrier molecules

Term
Facilitated Diffusion
Definition

Helped diffusion,

High concentration to low concentration

carrier molecule required

specificity

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