Question

explain the functions of different parts of brain in detail.

Answer 1

Functions of various external anatomical parts of the human brain

1. Frontal Lobe
governs
-muscle movement
-motor skills
-cognitive functions 
          > Personality, behaviour, emotions.
          > Speech, speaking and composition (Broca's region)
          
2. Parietal Lobe
-processes the sensations of touch, pain and pressure

3. Occipital Lobe
-processes visual cues

4. Temporal Lobe
-helps sort out certain auditory information including languages.
                >Understanding language (Wernicke's area)
-Sequencing and organisation

5. Cerebellum
-helps coordinate muscle activity

Functions of various parts of the human brain as seen in sagittal section.

1. Hypothalamus
- controls behaviours like sleep, thirst, hunger and sexual response.
- regulates body temperature, blood pressure, hormonal production and emotions

2. Pituitary gland
-controls endocrine glands
-secretes hormones that control sexual development, promote bone and muscle growth, respond to stress, and fight disease.

3. Pineal gland
-controls circadian cycles and sexual growth

4. Thalamus
-relay station for information
-alertness, attention, pain sensation and memory

5. Limbic system
- includes Hippocampus, Amygdala, Epithalamus 
- controls memory, learning and emotions.

6. Meninges
-Dura mater separates the left and right hemisphere, and cerebrum from the cerebellum.
-Arachnoid mater covers the brain and provides protection
- Pia mater separates the brain from the Cerebro-spinal fluid.