Biology
State whether the following statements are true (T) or false (F).
(a) The main component of the white matter of the brain is perikaryon.
(b) The arachnoid layer fits closely inside the pia mater.
(c) A double chain of ganglia, one on each side of the nerve cord belongs to the spinal cord.
(d) Dura mater is the outermost layer of the meninges.
Related Questions
Given below are sets of four terms each. Choose the odd one and write the category of the remaining terms :
(a) Duramater, Gray matter, Piamater, Arachnoid
(b) Cerebrum, Cerebellum, Spinal cord, Medulla oblongata.
(c) Pons, Cyton, Axon, Dendrons
(d) Hypothalamus, Cerebellum, Pons, Medulla oblongata
(e) Sneezing, Blinking, Blushing, Knitting without looking
Mention where in human body are the following located and state their main functions:
(a) Corpus callosum
(b) Central canal
State whether the following are simple reflexes, conditioned reflexes or neither of the two.
(i) Sneezing……………………
(ii) Blushing……………………
(iii) Contraction of eye pupil………………..
(iv) Lifting up a book……………………
(v) Knitting without looking…………………
(vi) Sudden application of brakes of the cycle on sighting an obstacle in front……………….
State the functions of the following:
(a) Association neuron
(b) Myelin sheath
(c) Medullary sheath
(d) Cerebrospinal fluid