A reflex arc begins with the stimulation of a sensory receptor such as those on the skin. The stimulus is then passed as an electrical impulse along sensory, relay and motor neurones (by-passing the brain) before reaching an effector orgen, like a muscle, which then responds to the stimulus.
brain
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.
A sensory receptor is the type of neuron that begins a 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.
Hormones have nothing to do in reflex arc.
reflex arc
the sensory receptor begins then the Relay neuron and final the motor neuron
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.
Reflex Arc
Reflex Arc
This type of reflex never in fact reaches the brain. The reflex arc begins with the perception of temperature, moves to the peripheral spinal chord, and is immediately sent back into a muscular contraction to move the hand away.
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