The reflex arc allows sensory neurons to synapse in the spinal cord instead of the brain, allowing actions to occur relatively quickly by activating spinal motor neurons without needing to send signals through the brain.
For example, a person touching a hot stove would flinch before thinking about it, and protect tissues from further damage.
It is useful as it means the signal does not have to go all the way to the brain and back to the muscle to react, instead it goes to the spinal column and back again which is slightly quicker meaning you can react more quickly e.g. if you touch something hot
btw this is why you react before your brain feels pain
A reflex arc is a neural pathway for an action reflex; ie it causes a certain reflex to occur in response to a certain stimulus. Reflex arcs allow the body to react to stimuli quickly, without waiting for the brain to make a decision.
a neural pathway by which reflex occur
An effector is at the end of a reflex arc as it is the muscle or gland that 'does' the reflex. What the effector does is the outcome of the reflex arc.
A reflex arc does not pass through the brain. The somatic reflex arc and autonomic reflex arc are two types.
spinal cordautotomicspinal cord in the central nervous system controls reflex arc and reflex action.
Damage to the spine can affect the reflex arc by delaying the nerve pathway or making it so you are unable to move a muscle.
A reflex arc.
Hormones have nothing to do in reflex arc.
An effector is at the end of a reflex arc as it is the muscle or gland that 'does' the reflex. What the effector does is the outcome of the reflex arc.
reflex arc
Muscles and glands are the possible effectors of a reflex arc
A reflex arc does not pass through the brain. The somatic reflex arc and autonomic reflex arc are two types.
You can have and you have the reflex arc situated spinal cord level. The function of the reflex arc can not be overemphasized. This reflex withdrawal from the harmful stimulus protects you to great extent. Secondly the spinal cord is well placed away from the brain. So that the arrangement of nerves in your brain becomes less complicated.
A sensory receptor is the type of neuron that begins a reflex arc.
Reflex Arc
Reflex Arc
Reflexes are uncontrollable movements that happen almost instantly in response to a stimuli. A reflex arc, a neuronal circuit that controls reflexes, is where reflex activities takes place.
what is the role of sensory and motor neurones in a reflex arc
reflex arc