Smallest unit in the body that produces and releases a chemical substance called hormones
Hormones
Chemicals that coordinate different functions in the body by carryingmessages through your blood to your organs, skin, muscles and other tissues
These signals tell your body what to do and when to do it
Keeping the Endocrine System Healthy
1. Know your family history
2. Eat healthy diet
Know your family history
Knowledge of your family history is a powerful tool to help you prevent from acquiring any endocrine diseases especially when you get into your twenties. Several endocrine disorders develop at the early stages of life
Eat healthy diet
A person who does not eat healthy food can have Type 2 diabetes, which can cause blindness and kidney failure
Overall Role of the Endocrine System
Secretes hormones directly into the bloodstream to regulate daily activities of the body and controls its overall development
Hormone acts as chemical messengers in the body which stimulates many organs such as the ovaries and the testes
Endocrine System
Secretes hormones directly into the bloodstream to regulate daily activities of the body and controls its overall development
Hormone acts as chemical messengers in the body which stimulates many organs such as the ovaries and the testes
Ways to keep the Endocrine System healthy
Know your family history
Eat healthy diet
Know your family history
Knowledge of your family history is a powerful tool to help you prevent from acquiring any endocrine diseases especially when you get into your twenties. Several endocrine disorders develop at the early stages of life.
Eat healthy diet
A person who does not eat healthy food can have Type 2 diabetes, which can cause blindness and kidney failure.
Glands
Smallest unit in the body that produces and releases a chemical substance called hormones.
Hormones
Chemicals that coordinate different functions in the body by carrying messages through your blood to your organs, skin, muscles and other tissues. These signals tell your body what to do and when to do it.
Hypothalamus
Part of the brain that regulates metabolism
Hormones
A releasing factor
Functions of the hypothalamus
Regulating blood pressure
Regulating body temperature
Regulating uses of water
Pituitary gland
Located at the base of the brain
Types of hormones in the pituitary gland
ACTH - Stimulates adrenal gland
TSH - Releases specific hormones
GH - Growth of skeletal system
Prolactin - Stimulates milk production in the mammary gland
Adrenal gland
Located on top of the kidney
Adrenaline
Controls flight or fight response
Aldosterone
Increases uptake of water & sodium in the kidney
Homeostasis
Responsible for the regulation & maintenance of the internal environment of the body
Homeostasis regulates
Body temperature
Fluids
Salts
Acids by sweating
No sweat
Dehydration
Control system
Sensors - sense organs
The brain receives information from the sensors
Nervous & Endocrine system
Targets - responsible to the change of the activities of the body
Dendrites
Branched cell
Cell body
Contains nucleus which will process the stimulus
Axon
Transmits stimulus to the gland, muscle, organ and other neurones
Feedback mechanism
Body maintains state of balance through the control system activated by many feedback systems
Nervous & endocrine system
Play an important role to function the feedback system of the body
Negative feedback
Control system to reduce or minimise any changes or conditions of the body, which keeps the whole body system stable & regulates homeostasis
Negative feedback
Increase breathing to increase oxygen supply
Regulates the level of glucose in the blood
Thermoregulation - sweating counteracts and stays the rise in body temperature
Positive feedback
Control system in which uses information from sensors to increase the rate of process, important when a rapid change is necessary, amplifies the original actions
Sensors
Sense organs
Sensors
Receptors which are responsible in gathering information about the connection inside and outside the body
Control system
The brain receives information from the sensors
Community system
Nervous & Endocrine system of the body
Targets
Responsible to the change of the activities of the body in response to the message received