Nervous System Physiology

MGN stands for the medial geniculate nucleus. It is a vital part of the auditory thalamus and represents the thalamic communication between the inferior colliculus and the auditory cortex.

Granule cells are intrinsic neurons. They are very small and numerous, like grains of sand.

Microglia are the least numerous and smallest cells present in the brain, but still play a vital role in injury repair and cell debris and waste removal. If an injury occurs, these cells assembled around the injured cells to destroy the dead or dying cell.

Headache, vomiting, and unconsciousness are classic symptoms of brain involvement because increased intracranial pressure or inflammation affects consciousness centers. While lungs and liver problems can cause nausea, and kidney issues can cause headaches, this specific symptom cluster strongly indicates brain pathology.

This is the correct option as nervous tissues are the tissues that specialise in transmitting messages within our body. They contain neurons that have the ability to receive stimuli from within or outside the body and to conduct impulses to different parts of the body.

This is a neural stalk connecting the neurohypophysis with the hypothalamus.

It is a large fibre bundle, which conjoins the forebrain with the hindbrain. It accomodates axons that control voluntary movement of the body.

Frontal lobe of the cerebral cortex is affliated with reasoning, planning, parts of speech, movement, emotion and problem solving skills of an individual.

It is the portion of the cerebral hemisphers in the temporal lobe. It is needed for learning and memory and for converting short term memory into permanent memory, and for reminding, spatial relationships in the world about us.

Corpus callosum is a thick band of nerve fibers that divides the cerebrum into left and right hemispheres. It connects the left and right sides of the brain allowing for communication between both hemispheres. The corpus callosum transfers motor, sensory and cognitive information between the brain hemispheres.

Electroencephalography (EEG) refers to the recording of the brain's spontaneous electrical activity over a short period of time, which is usually 20 to 40 minutes as recorded from multiple electrodes placed on the scalp. EEG used to be a first line method for the diagnosis of tumors, stroke and other focal brain disorders. It is also used in the diagnosis of coma, encephalopathies, and brain death.

The forebrain is the largest part of the brain, most of which is made up of the cerebrum. Other important structures found in the forebrain include the thalamus, the hypothalamus and the limbic system.

The limbic system is a complex set of brain structures that lies on both sides of the thalamus right under the cerebrum. The forebrain is the largest part of the brain, most of which is made up of the cerebrum. The important structures found in the forebrain include the thalamus, the hypothalamus and the limbic system.

The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex. The primary visual cortex is brodmann area 17 commonly called V1 (visual one). Human V1 is located on the medial side of the occipital lobe within the calcarine sulcus.

It is involved in sensory perception and regulation of motor functions. The thalamus also plays an important role in regulating states of sleep and wakefulness. Thalamic nuclei have strong reciprocal connections with the cerebral cortex and forming thalamo cortico thalamic circuits that are believed to be involved with consciousness. The thalamus plays a major role in regulating arousal, the level of awareness, and activity. Damage to the thalamus can lead to permanent coma.