control mechanisms

where is the adrenal gland located

where is the adrenal gland located

where is the pituitary gland located

where is the pancreas located

where is the thyroid gland located

where are the ovaries or testes located

state the function of the endocrine system

control and regulate body functions and relate hormones into the bloodstream

what is the difference between an endocrine and an exocrine gland

exocrine glands secrete substances into a ducts to a surface, endocrine glands secrete products directly into the bloodstream

hormone defintion

chemical messenger

what is a mixed gland

a gland that is both endocrine and exocrine

what is an example of a mixed gland

pancreas

what is the name of the endocrine part of the pancreas

islets of Langerhans

name the two hormones secreted by the islets of langerhans

glucagon, insuline

What is the name of the disease which is caused by a disturbance in the oxidisation and utilisation of glucose, which is secondary to a malfunction of the beta cells of the pancrea

diabetes

what is secreted by the exocrine part of the pancreas

digestive enzymes, ions and water

where are the thyroid glands found

neck (ventral to tracheal rings)

list the 3 hormones secreted by the thyroid glands

thyroxine

cortisol

calcitonin

what is the function of thyroxine

increases the rate of chemical reactions in cells and helps control growth and development

what is the function of cortisol?

regulation of stress response

what is the function of calcitonin

help regulate calcium levels in your blood by decreasing it

endothermic definition

Maintains own body temperature independent of the environment (Thermoregulation)

endothermic examples

Dog

Cat

Guinea-pig

Human

endothermic environment

Can live in a wide range of environmental conditions

endothermic diet

Must eat a lot to remain warm

endothermic activity

Can be active all of the time

ectothermic definition

Maintains body temperature using environment, basking for heat and shade for cool

ectothermic examples

Bearded dragon

Invertebrates

Python

Newt

ectothermic activity

Need to bask for heat/energy

Rely on external heat sources

ectothermic diet

Lies in wait for prey. Does not need to eat very often

ectothermic environment

Can only live in limited environments

ectothermic temperature

Cannot perform some functions until they reach a good body temperature