Test: Central Nervous System In Humans - Class 10 MCQ

Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem. The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.

The medulla which sends signals to the muscles involved in breathing, and the pons which controls the rate of breathing.

The sympathetic nervous system activates what is often termed the fight or flight response. Sympathetic neurons are frequently considered part of the peripheral nervous system (PNS), although there are many that lie within the central nervous system (CNS).

Sympathetic neurons of the spinal cord (which is part of the CNS) communicate with peripheral sympathetic neurons via a series of sympathetic ganglia.

Within the ganglia, spinal cord sympathetic neurons join peripheral sympathetic neurons through chemical synapses.

Olfaction lobe in forebrain helps in sensing the smell. 

The forebrain in our body is the largest part of our brain. 

The most of this part is cerebrum. 

The other important structures which form the part of forebrain are the thalamus, the hypothalamus and the limbic system. 

It is the neutral structure of a person’s forebrain.

Detecting a taste (gustation) is fairly similar to detecting an odor (olfaction), given that both taste and smell rely on chemical receptors being stimulated by certain molecules. The primary organ of taste is the taste bud. A taste bud is a cluster of gustatory receptors (taste cells) that are located within the bumps on the tongue called papillae. There are several structurally distinct papillae.