NEET PG DENTAL EXAM

HISTOLOGY

NERVOUS TISSUE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Neurons that carry sensory information toward the brain from sensory receptors are called:
A
afferent
B
efferent
C
interneurons
D
autonomic
Explanation: 

Detailed explanation-1: -Afferent neurons in the dorsal roots carry impulses from the body’s sensory receptors to the spinal cord, where the information begins to be processed. The ventral horns contain efferent motor neurons, which control the body’s periphery.

Detailed explanation-2: -Sensory neurons receive information via their receptors, which are part of the peripheral nervous system, and convert this information into electrical impulses. These impulses act as signals and are passed on to the central nervous system. The spinal cord and brain then receive and respond to this information.

Detailed explanation-3: -For example, if the central point in question is the brain, sensory neurons are afferent because they send information to the brain, while motor neurons are efferent because they carry information from the brain to effector organs like muscles or glands.

Detailed explanation-4: -Specialized afferent neurons capable of transducing sensory stimuli into NERVE IMPULSES to be transmitted to the CENTRAL NERVOUS SYSTEM. Sometimes sensory receptors for external stimuli are called exteroceptors; for internal stimuli are called interoceptors and proprioceptors.

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