DESCRIBE THE STRUCTURE AND FUNCTIONS OF THE VARIOUS PART OF THE MAMMALIAN BRAIN. (20MKS)

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 Describe the structure and functions of the various part of the mammalian brain. (20mks) 
Cerebrum ; - Controls learning intelligence, reasoning, thought, 
memory, speech, vision, hearing, smell, taste
-Also controls voluntary movements, movement of lips, limb, neck etc;  
Hypotahlamus; - Controls body temperature ability to sleep and wake up/appetite   osmo regulation/secretion of hormones;
Pitiutary gland; - Secretes hormones like ADH/F.S.H/L.H/prolactin/oxytocin;
Thalamus ;- Is a relay centre that integrates sensory impulses from eyes, ear, skin ;  and sends the impulse  to sensory cortex of cerebrum;
                        [Acc contains receptors for pain and pleasure.] 
 Olfactory lobes ; Control sense of smell ; 
Ventricles ; which contain  cerebrospinal fluid which supplies food nutrients and oxygen; to tissues of brain and remove metabolic waste from brain  tissues ; fluid acts as shock absorber for the brain;
Optical lobes ; control movement of the eye ;
Cerebellum ; controls body balance, movement, posture ;
Medulla oblongata; controls involuntary movement sneezing vomiting, blood circulation, breathing movement; 
Meninges; for protection; 
Arachnoids layer; secretes  cerebrospinal fluid for oxygen supply, which absorbs shock and nutrients supply;

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