ANATOMY

GENERAL ANATOMY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
True or False:The spinal cord regulates reflexes
A
True
B
False
Explanation: 

Detailed explanation-1: -Spinal Cord is the center that controls reflex action. Reflex actions are actions that are carried out quickly in response to a stimulus and thus do not involve any thinking, and thus are under the control of spinal cord.

Detailed explanation-2: -Spinal cord reflexes are simple behaviors produced by CNS pathways within the spinal cord. The spinal stretch reflex (SSR), also called the knee jerk or M1, is the initial response to sudden muscle stretch.

Detailed explanation-3: -In reflex actions, a reflex arc is formed by impulses from the receptor reaching the spinal cord and the appropriate reflex impulse then being sent to the muscles by the spinal cord. The impulse is not sent to the brain, to reduce response time.

Detailed explanation-4: -Reflex signals that cause movement do not come from your brain. A reflex signal comes from the nerves in your body, like sensory signals, but instead of going to your brain, they stop at the spinal cord. Once they reach the spinal cord, they loop through and go straight back to the body part they came from.

Detailed explanation-5: -Which of the following is true of spinal reflex? They involve sending sensory messages to the spinal cord that immediately trigger a motor response. Spinal reflexes are automatic responses that occur without conscious effort. In fact, spinal reflexes do not even require the brain to occur.

There is 1 question to complete.