MUSCLE PHYSIOLOGY

PHYSIOLOGY

MUSCLE RECEPTORS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How is a reflex arc different than other voluntary movements?
A
A reflex arc takes the same path as a voluntary action
B
A reflex a travels from a sensory neuron to the spinal cord then to a motor neuron, skipping the brain
C
A reflex arc takes longer than a voluntary action
D
There is no difference between a reflex arc and a voluntary action
Explanation: 

Detailed explanation-1: -Voluntary action are under control of ones will, whereas reflex action are spontaneous involuntary, nerve-mediated activity produced at the unconscious level by stimulating specific receptors.

Detailed explanation-2: -(i) Sudden reaction in response to the stimulus is called reflex action. (ii) Sensory neurons carry signals from the spinal cord to muscles. (iii) Motor neurons carry signals from receptors to spinal cord. (iv) Reflex arc is the process in which the nerve impulse is carried and the response is generated.

Detailed explanation-3: -Spinal Reflex/The Reflex Arc A reflex is an involuntary and nearly instantaneous movement in response to a stimulus. The reflex is an automatic response to a stimulus that does not receive or need conscious thought as it occurs through a reflex arc. Reflex arcs act on an impulse before that impulse reaches the brain.

Detailed explanation-4: -Reflexes are unconscious responses, which means they are automatic and do not require the brain to create the action. There are many different types of reflexes, but the most basic is called a simple reflex.

There is 1 question to complete.