Nervous System And Hormones Flashcards
Sensory area
To receive information from the sense organs
Moto area
Controls movement
Association area
For thinking and memory
Cerebellum
It controls the muscles needed for walking cycling running and generally maintaining balance
Medulla oblongata
It controls the automatic activities for internal organs
Functions of the spinal cord
Relay impulses entering and leaving the central nervous system
Send impulses to and from the brain
Coordinate reflex action
Sensory organ neurones
Receive stimuli from sensory neurones
Past the nerve impulse to central nervous system
Motor neurones
Receive signals from the central nervous system
Transfers the impulses to muscles or glands which will respond to stimulus
Connect or relay neurones
Connect sensory neurones and motor neurones
Synapse
Is the small gap between neurones where impulses pass across from one neurone to another new one
Effectors
The structure that carries out an action response
Stimulus
Is a change in an organism external and internal environment that produces a response
Discuss the functions of the central nervous system
It is the centre of coordination when nerve impulse interpreted and coordinated
Reflex action
Is an automatic response to stimulus
Example of reflex action
Coughing to clear the windpipe
Trying to keep you warm
Pupil get smaller in bright light and large indoor light help you see
Blinking snoozing heartbeat
Describe the effects of alcohol and drug abuse on the nervous system
Drug slows down the transmission of nerve impulse
Alcohol slows down the transmission of nerve impulses causing the person to take a long time to respond to stimuli
How might the respond to a hot object be affected if the person had taken drugs or alcohol
The response would be slower
State long-term effects that alcohol abuse has on the nervous system
Brain damage
The response and kills brain cells
Discuss the influence of drug abuse on families and the community
Confusion and disorientation
Thyroid gland
Thyroxin
Pancreaze
Insulin
Ovaries
Progesterone and oestrogen
Testes
Tortoise run
Adrenal glands
Adrenaline
Pituitary gland
Growth hormones antidiuretic hormones
Thyroxin
Controls wide range of chemical reactions in the body and promotes growth
Testesterone
Influences secondary characteristics
Adrenaline
Papers for action in emergencies
Antidiuretic hormones
Controls the water balance
Growth hormones
Controls the growth rate of the body
Insulin
Controls the level of glucose in blood
