Thermoregulation
What does thermoregulation refer to?
What is, the regulation of internal temperatures.
What is the environmental change called?
What is, the stimulus.
What are some processes in the body that are regulated by Homeostasis?
Thermoregulation, Osmoregulation, Blood glucose regulation
What does Homeostasis mean?
A process of maintaining a constant internal environment.
What is the hormone responsible for regulating blood glucose levels?
Insulin
What kind of feedback is thermoregulation?
Negative
What systems are responsible for releasing hormones to maintain homeostasis?
Nervous and endocrine systems
Define positive feedback.
amplifies the initial change(stimulus)
What is the organ responsible for regulating blood glucose
Pancreas
What is the name of the receptor that detects changes in temperature?
Thermoreceptor
What are the components of a stimulus-response model?
1. Stimulus
2. Receptor
3. Modulator or control centre
4. Effector
5. Response
This type of homeostasis is an example used for positive-feedback.
What is, child birth or blood clotting.
Define negative feedback.
Body's response reverses the initial change to bring the body back to its normal state(set point)
Blood-Glucose homeostasis is part of what type of system.
a) Nervous System
b) Endocrine System
c) Skeletal System
Endocrine
What is the effector and response if there is an increase in body temperature?
Sweat glands: sweating
Blood vessels: Vasodilation(blood vessels become wider)
Behaviour: Take jumper off, seek shade, open windows, rest.
What processes the electrical or chemical signal from the receptor and makes a decision
Modulator/control center- Hypothalamus
What is the effector and response when blood glucose decreases
Liver: Breaks down glycogen into glucose
Define Hyperthermia and Hypothermia and describe the temperature range for these?
Hypothermia: abnormally low body temperature (life-threatening below 35°C) .
Hyperthermia: abnormally high body temperature (life-threatening above 40°C) .
What is the role of the hormones insulin and glucagon?
Insulin responsible for uptake of glucose into cells. Glucose stored as glycogen
Glucagon: breaks down glycogen into glucose