MEDICAL PHYSIOLOGY

PHYSIOLOGY

CENTRAL NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How do Reflexes work?
A
starts off with receptors being excited. They then send signals along a sensory neuron to your spinal cord, where the signals are passed on to a motor neuron.
B
starts off with the person being excited they then send signals to the brain to your spinal cord, where the signals are passed on to a ventricle neuron.
C
A muscular organ that pumps blood out to the body to make you energized.
D
when there is a sudden interruption of blood to the brain.
Explanation: 

Detailed explanation-1: -In a reflex, the information is first detected in the sensor and travels along sensory neurons to the spinal cord. Once the action potential reaches the spinal cord, the information is transmitted across the synapse to the motor neuron.

Detailed explanation-2: -Reflex action is a sudden and involuntary response to stimuli. It helps organisms to quickly adapt to an adverse circumstance that could have the potential to cause bodily harm or even death. Pulling our hands away immediately after touching a hot or cold object is a classic example of a reflex action.

Detailed explanation-3: -Reflexes are faster than our normal reactions because reflex actions use a different neural pathway. Unlike normal movement, most reflexes bypass the brain, receiving signals only from the spinal cord.

Detailed explanation-4: -In a simple reflex, a neuron brings information about a stimulus to the brain or spinal cord and connects with a motor neuron. The motor neuron sends out a message to a muscle. The muscle responds to that message by contracting. You may remember that the cerebral cortex plans and controls your behavior.

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