Local Hot and Cold Application and Heat Loss Flashcards
For hot applications the result is ___________.
vasodilation
For cold application the reult is ___________ .
vasoconstriction
Law of Action and Reaction: True or False.
The action (or primary effect) is the vascular response of the local tissues and lasts the duration of the application. This secondary response takes place in order to “normalize” blood flow, back through the local area and regain homeostatic function.
True
Law of Action and Reaction: True or False.
Action: would be 15-60 sec. vasoconstriction
Reaction: would be vasodilation – usually lasting several minutes Net vascular response (sum of action and reaction): would be vasodilation
True
A local application of hydrotherapy may effect circulation in six distinctive manners: Includes:
Direct effect
Derivative
Retrostasis
Collateral Circulation
Arterial
Trunk Reflex
_________ : an application to the spinal level supplying the structure, or skin reflex related to the structure, will have the same vascular response at that structure as the site of application (nerve root level).
Reflex
___________ : whatever influence is placed on the artery is conveyed to the smaller blood vessels fed by it.
Arterial Trunk
__________ - is the drawing of blood and lymph from one area of the body to another. It results from vasodilation due to the Action of Heat or Reaction to Cold .
Derivative
___________ - is the repelling of blood and lymph from one area of the body to another. The mechanism is vasoconstriction resulting from the Action of cold or the Reaction of hot, whereby blood is diverted from the surface to the interior of the body.
Retrostasis
_____________- utilizes the same mechanisms as Derivative and Retrostasis but in a very localized area. Direct modifications of blood flow through superficial blood vessels inversely affect deeper blood vessels in the local capillary bed.
Collateral Circulation
___________ - is the vascular response at the immediate site of the application. It includes the Action and Reaction but most importantly, the net vascular response.
Direct effect
What are the 4 processes of Body eliminating heat?
Evaporation
Radiation
Convection
Conduction
It is the most important of four processes of heat loss in high environmental temperature.
Evaporation
Heat transferred from surface of one object to another, without contact between the two. This is known as:
Radiation
Transfer of heat to, or from the body as air or fluid passes over it. This process is known as:
Convection