Synapses Flashcards
What happens when a receptor is stimulated?
It sends a signal to the central nervous system
Explain the synapse process
Electrical impulses travels along the axon wi
What is a reflex action
When a very quick response is needed, one that does not involve the brain.
What happens in a reflex action
- receptor detects a stimulus
- sensory neurone sends signal to relay neurone
- motor neurone sends signal to effector
- Effector produces response
what is a synapse
A gap between nerve endings
A motor neurone transmits…..
A signal from the central nervous system to an effector such as a muscle
Name the 6 drugs
Stimulants,depressants, painkillers,recreational drugs and hallucinogens
What does smoking cause in pregnancies
Miscarriage premature birth
Weight loss at birth
Sum up nicotine
It is an addictive substance in tobacco it creates a dependancy so smokers become addictive
What does carbon monoxide do in tobacco
Reduces the ability of the blood to carry oxygen
strain on circulatory system
What does tar cause
Cancer
What is alcohol in wine spirits and beers is called
Ethanol
Short term effects of alcohol
Tiredness, impaired judgment balance and muscle control, blurred vision and slurred speech
Long term effects from drinking alcohols
Damage to liver and brain
Liver removes alcohol from blood stream because it’s a toxic chemical
A successful transplant has to have
Similar tissue
Similar ages
Locations
