Chemistry of brain

Histochemistry
Histochemistry of brain

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Biochemistry
Nervous tissue contains mainly water, protein, phosphatides, cerebrosides, cholesterol and inorganic substances. It contains proteins such as

  • A globulin
  • Nucleoprotein
  • Neurokeratin
  • Brain derived tubulin

Nervous tissue also contains lipid some   of which include  and phosphatides and cerebrosides such as phrenosin and kerasin. Aside from cholesterol it also contains sulpholipids. Its phosphatides include lecithin, kephalin and sphingomyelin. Its fatty acids are less saturated  than other tissues. It has little neutral fat. Brain also contains creatine, hexose phosphates, glycogen, methylglyoxal and lactic acid.  Acetylcholine is its major neurotransmistter. It has considerable potassium ions and its fatty acids have higher molecular weight than other tissues.
Brain tissue also contains 75.1% of water, 11.5% of protein, 12.4% of lipid and ash is 1.4%

Brain metabolism

Brain requires (and indeed nervous tissue)  second-by-second delivery of oxygen because of high metabolic rate of neurons. This is why the brain  is damaged after lack of oxygen or nutrient for a few seconds.

 

 

 

 

 

Brainstem Medulla Pons Midbrain Thalamus Epithalamus
Basal ganglia Forebrain Temporal lobe Cerebral operculum Remove operculum Wall of lateral ventricle 1
Wall of lateral ventricle 2 Wall of lateral ventricle 3 lateral ventricle 1 lateral ventricle 2 Base of brain Rhomboid fossa
 
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