Module 3 : Physiology

Lecture 14 : Nervous System (Part-II)

 

Midbrain, medulla oblongata and pons varolii are situated on one axis called brain stem. The side view of a human brain is shown in Figure 14.2 which shows major parts of brain.

Figure 14.2: Side view of human brain

 

Table 14.1: Different areas of brain and their functions.

Name of Area

Location

Function

Prefrontal cortex

Frontal lobe

Site of intelligence, knowledge and memory

Premotor area

Frontal lobe

Writing centre, associated movement of eye, head & body, control complex movement of jaw, tongue, pharynx and larynx

Motor area

Frontal lobe

Analysis of all type of voluntary muscle

Frontal eye field

Frontal lobe

Opening and closing of eyelid and conjugate movement of eye

Broca’s area
or motor speech area

Frontal lobe

Analysis for speak

Auditory area

Temporal lobe

Analysis for sound

Olfactory area

Temporal lobe

Analysis for smell

Wernicke’s area

Temporal lobe

Analysis for communication

Gustatory area

Parietal

Analysis for taste

Somesthetic area

Parietal

Analysis for touch, pain, pressure etc.

Angular gyrus

Parietal

Analysis for writing (associated with speech)

Occipital area

Occipital

Analysis for vision