Homeostasis (Regulating Glucose + Regulating Temperature)

What is Homeostasis?

Homeostasis is the maintenance of a constant internal environment

What happens when you eat which increases your glucose in the blood?

1. The Pancreas detects increase and releases the hormone insulin into the blood

2. Insulin travels to liver and liver turns glucose into insoluble glycogen for storage

3. Glucose level decreases to normal level

What happens to your glucose levels when you exercise?

1. Exercising decreases glucose in the blood

2. Pancreas detects the decreases and releases the hormone glucagon into the blood

3. Glucagon tells the liver to turn stored glycogen into glucose and release into the blood

4. Glucose levels in bloods increases to normal levels

What is type 1 diabetes?

The body does not release insulin

What is type 2 diabetes?

The body cells do not respond to the chemical signal from insulin

What are the symptoms of Diabetes?

Glucose in urine detected by a Benedict’s test

Name 3 treatment of Diabetes?

1. Injecting insulin

2. pancreas transplants

3. low sugar/ carbohydrates diet

What happens when the body gets too hot?

1. The Hairs lie flat

2. Sweating- A layer of liquid sweat made by sweat glands, carried up by sweat ducts and released by sweat pores onto the skin and evaporates removing heat energy.

3. Vasodilation- Blood vessels in the skin widen so more heat from the blood is lost to the environment.

What happens when the body gets too cold?

1. Hairs stand on end to trap a layer of insulating air over skin reducing heat loss

2. Shivering- Involuntary contraction of the muscles increases respiration and the release of heat energy.

3. Vasoconstriction- Blood vessels in the skin get narrower so less heat is lost from the blood to the environment.

What is the labels on a hair during regulating temperature?