AP BIOLOGY

ANIMAL PHYSIOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the spinal cord responds in an emergency to a stimulus before the brain, this is called a ____
A
response
B
synapse
C
cerebral response
D
reflex
Explanation: 

Detailed explanation-1: -Reflex actions happen through the reflex arc, which is a neural pathway that controls the reflexes. It acts on an impulse even before it reaches the brain. Some stimuli require an automatic, instantaneous response without the need of conscious thought.

Detailed explanation-2: -Spinal cord reflexes exam links Reflexes are rapid, automatic responses to particular stimuli that cause the same response every time. Spinal cord reflexes are stereotyped and dependable motor responses, such as the stretch of a muscle. The neuronal circuit involved is called the reflex arc.

Detailed explanation-3: -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-4: -The withdrawal response (reflex), also known as the nociceptive flexion reflex, is an automatic response of the spinal cord that is critical in protecting the body from harmful stimuli.

There is 1 question to complete.