human brain

1. Naveen chaudhary for Class 8th
Subject –Lifescience Time 20mins
Topic brain Date 13Feb,2

2. Topic: structure of human brain

3. Human brain
The part of the central nervous system
enclosed in the skull and most complex
organ of body.

4. Shape and size
The shape of brain is like walnut.
Weight-1.4 kg
Volume 1130 cubic centimetres.
CSF -cerebrospinal fluid

5. Structure
Upward folds –Gyri
Downward folds –sulci
100 billion neurons.

6.  1.Fore brain
 2.Mid brain
 3.Hind brain
Parts of brain

7. 1.Fore brain

8. 1.FRONTAL LOBE
Emotions ,decision making .

9. PARIETAL LOBE
 pain ,heat , and cold

10. TEMPORAL LOBE
Smell and memory

11. Visual information and colour
OCCIPITAL LOBE

12. MID BRAIN: makes
coordination between fore
brain and hind brain

13. HIND BRAIN
Cerebellum
Medulla oblongata

14.  Cerebellum :-help in equilibrium
 Medulla oblongata :-heart
rate,breathing,sneezing,vomiting

15. BRAIN DEFECTS
Brain haemorrage

16. Epilepsy:-
Symptoms
(1)Seizures

17.  Meningitis:-swelling of brain covering
 Encephalitis :swelling of brain tissues