SCIENCE - EXAM 4th 10th grade

Subdecks (3)

Cards (101)

  • 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
  • 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