NEET PG DENTAL EXAM

EMBRYOLOGY

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If you picked up a hot coal, the signal from the sensory neurons in your fingertips would travel to ____ in your spinal cord.
A
Sensory Neurons
B
Motor Neurons
C
Interneurons
D
None of the above
Explanation: 

Detailed explanation-1: -Sensory neurons get information about what’s going on inside and outside of the body and bring that information into the CNS so it can be processed. For instance, if you picked up a hot coal, sensory neurons with endings in your fingertips would convey the information to your CNS that it was really hot.

Detailed explanation-2: -The sensory neurons have nerve endings in the skin which carry the impulse, created due to heat, to the spinal cord. The relay neuron transmits it to the effector/motor neuron which makes the muscles move and hand is taken back.

Detailed explanation-3: -It acts as a communication relay between your brain and your extremities. For example, if you touch a hot stove, the pain signals travel from your finger to your brain in a split second. In just as short a time, your brain tells the muscles in your arm and hand to snatch your finger off the hot stove.

Detailed explanation-4: -Receptor in the skin detects a stimulus (the change in temperature). Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector.

There is 1 question to complete.