EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Unipolar neurons are always ____
A
Sensory
B
Reflex
C
Visual
D
Only in the CNS
Explanation: 

Detailed explanation-1: -Unipolar cells are exclusively sensory neurons and have two unique characteristics. First, their dendrites are receiving sensory information, sometimes directly from the stimulus itself. Secondly, the cell bodies of unipolar neurons are always found in ganglia.

Detailed explanation-2: -Unipolar (pseudo-unipolar) neurons are sensory neurons with cell bodies located in spinal and cranial nerve ganglia.

Detailed explanation-3: -Afferent neurons, also called sensory neurons, are the nerve fibers responsible for bringing sensory information from the outside world into the brain.

Detailed explanation-4: -A unipolar neuron is a neuron in which only one process, called a neurite, extends from the cell body. The neurite then branches to form dendritic and axonal processes. Most neurons in the central nervous systems of invertebrates, including insects, are unipolar.

Detailed explanation-5: -Bipolar neurons are found in the retina of the eye, roof of the nasal cavity, and inner ear. They are always sensory and carry information about vision, olfaction, equilibrium, and hearing.

There is 1 question to complete.