Heat Dissipating Mechanisms and Law of Action and Reaction

Question 1

The human body maintains many systems within close parameters to preserve the internal environment. As external environmental conditions change and effect the body’s internal environment, systems are activated to protect the body from “damage”. This is known as:

Answer 1

Homeostasis

Question 1

Allows, rather than prevents, some situations to happen. This is known as:

Answer 1

A positive feedback loop

Question 2

Reverses any deviations from normal. This is known as:

Answer 2

A negative feedback loop

Question 3

___________- is the most powerful tool that the hydro-therapist can use to manipulate the systems, aiding the body’s healing process.

Answer 3

Thermal effect

Question 4

When the blood temperature drops, homeostasis is maintained by preventing heat loss and increasing heat production. This is known as:

Answer 4

Heat Gaining Mechanisms

Question 5

Heat loss is prevented by the following: Except.

1. Inhibition of sweat glands (sudoriferous glands)
2. Vasoconstriction of superficial blood vessels
3. Heart rate slows
4. Respiration slows
5. Temperature rises

Answer 5

Except: 5

Question 6

________ - is produced strictly as a by-product of metabolic activity. Highly metabolic tissues are stimulated and elevated activity occurs, especially in the thermogenic tissues.

Answer 6

Heat

Question 7

When the blood temperature becomes elevated, heat is eliminated . This mechanism is known as:

Answer 7

Heat Dissipating Mechanisms

Question 8

What are the mechanisms where in heat is eliminated ?

Answer 8

Stimulating sudoriferous gland activity (sweat)

Inhibit precapillary spchincter – vasodilation of superficial blood vessels

Thermogenic tissues are repressed (e.g. liver)

Increased heart rate

Increased respiratory rate