- Messages
- 79
- Reaction score
- 12
- Points
- 18
Can somebody please explain the differences between reflex action and involuntary action in respect to the neurones, brain and spinal cord?
-
We need your support!
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Help in nervous system
- Thread starter scarificeurlaav
- Start date
- Messages
- 76
- Reaction score
- 56
- Points
- 28
Reflex action :
for example if ur hand touches a hot plate, an impulse is pickd up by a sensry receptr in ur fingr... it travels 2 the spinal cord along the axon frm the receptr cell, this cell is calld the sensry neurone...
in the spinal cord the neuron passes an impulse onto severl othr neurone like the relay neurone which relays the impulse onto othr neutrone.. it also passes the impulse onto the brain n an effector.. in this case the effectrs are the muscles in ur arm!! the message travels along the axon of a motr neurone. the muscle then contracts so that ur hand is pulld away...
the oevrall understndin is dat 4 reflex action u do not need 2 think about it, ur brain is made aware of it, bt u only consciouly realise wat s happning aftr the message has been sent onto ur muscle..
reflex actns are always involuntary action...
hope it helpd u
for example if ur hand touches a hot plate, an impulse is pickd up by a sensry receptr in ur fingr... it travels 2 the spinal cord along the axon frm the receptr cell, this cell is calld the sensry neurone...
in the spinal cord the neuron passes an impulse onto severl othr neurone like the relay neurone which relays the impulse onto othr neutrone.. it also passes the impulse onto the brain n an effector.. in this case the effectrs are the muscles in ur arm!! the message travels along the axon of a motr neurone. the muscle then contracts so that ur hand is pulld away...
the oevrall understndin is dat 4 reflex action u do not need 2 think about it, ur brain is made aware of it, bt u only consciouly realise wat s happning aftr the message has been sent onto ur muscle..
reflex actns are always involuntary action...
hope it helpd u
- Messages
- 79
- Reaction score
- 12
- Points
- 18
Reflex action :
for example if ur hand touches a hot plate, an impulse is pickd up by a sensry receptr in ur fingr... it travels 2 the spinal cord along the axon frm the receptr cell, this cell is calld the sensry neurone...
in the spinal cord the neuron passes an impulse onto severl othr neurone like the relay neurone which relays the impulse onto othr neutrone.. it also passes the impulse onto the brain n an effector.. in this case the effectrs are the muscles in ur arm!! the message travels along the axon of a motr neurone. the muscle then contracts so that ur hand is pulld away...
the oevrall understndin is dat 4 reflex action u do not need 2 think about it, ur brain is made aware of it, bt u only consciouly realise wat s happning aftr the message has been sent onto ur muscle..
reflex actns are always involuntary action...
hope it helpd u
Thanks alot
Can you please tell me how they carried out the xperiment in question 3?
I don't get what the distance form the finger tip is TwT
http://www.aims.edu.pk/download/o-level/bio/5090_s03_qp_6.pdf