Synapses and Reflexes Flashcards
1
Q
Does the reflex system involve your brain?
A
No
2
Q
Name the 8 stages(including synapses) of the reflex system
A
Stimulus
⬇️
Receptor
⬇️
Sensory neurone
⬇️
SYNAPSE
⬇️
Relay neurone
⬇️
SYNAPSE
⬇️
Motor neurone
⬇️
Effector
3
Q
What sensory nerves?
A
Carry signals, and tells the spinal cord that you are near something dangerous e.g. near a hot flame
4
Q
What do motor nerves?
A
Carry signals to central nervous system, to the effector. Spine sends message to motor to move away from the danger.
5
Q
What do relay nerves?
A
Signals from sensory nerves to motor➡️helps make the reaction.
6
Q
What is a reflex action?
A
Body rapidly responding stimulus. it is automatic
7
Q
what are synapses?
A
- connection between 2 neurones
- chemical signal moves across gap
