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differences between man amp rabbit -sno 1man brain roundrabbit elongated2olfactory lobes embeded in cereberumsome what clear3olfactory lobes
defects of nervous system -1 ataxia - lack of muscle-cordination due to damage of cerebellum2 dyslexia - in
nerve impulse its generation -it is an electro chemical phenomenon manifested through ionic movement across cell membraneit was discovered by a l
difference between unconditioned and conditioned reflex action-sno 1unconditioned it is inbornconditioned acquired2it does not require
conditioned reflex -response which is achieved by training is conditioned reflexi p pavlov in 1920 displayed it by experimenting on dogthese are
difference between adrenergic and cholinergic fibre-sno 1adrenergic fibre release nor adrenaline at theircholinergic fibre release
difference between sympathetic and parasympathetic nervous system -snosympatheticperasympathetic1components are visiblenot visible2ganglions linked
ans autonimic nervous systemname given by langley controled by hypothelamus partially independent systemcontrols involuntary actions as heart beat
spinal nerves31 pairs mixed type total weight 150 gmsat the base of origin of spinal nerves gland of swammardon or calcarious ganglion is
cranial nerves12 pairs total weight 12 gmsupto amphibian 10 pairs cranial nerves are present1 2 8 - sensory 3 4 6 11 12 motor 5 7 9 10 - mixed3 7 9
spinal cord myelonit is part of cns 45 cm long in woman 43 cm amp weight 35 gmsorigin from lower part of medulla oblongetashape -long cylindrical
medulla oblongata -conical in appearance lower most part of hind brain its lumen is metacoel or 4th ventriclean oval mass pons virolli lies above
hind brain -1 cerebellum -little part lies below the posterior part of cerebrum amp above the medulla oblongetait conists of
mid brain -optics lobes 4 in number corpora quadrizemmini in frog corpora bizemminisolid optocoel is absent 2 superior coculi and 2 inferior coculi
diancephalon -less visibleoccupies only 1 of brains volumeits lumen is diocoel or iii ventricleroof is epithalamuson it pineal body is presentfloor
cerebrum -largest part of brain 23 of brain 45 of brains weightcerebrum is devided into 2 cerebral hemispheres by longitudinal cerebral fissuregyri
forebrain1 olfactory lobes -1 pair very small solid club shaped separated from each otherfully covered by cerebral
cerebro-spinal fluid -formed mainly by choroid plexus and ependyma of ventriclesit comes out of medulla oblongeta by foramen of magandie and
brain encephelonshape - ovalposition - situated in cranial cavity of skull medulla oblongeta comes out of foramen magnum in the form of spinal
osteoporasis -reduction in bone tissue mass causing weakness of skeletal strength it leads to crush fractureit occurs in pastmenopausal women amp
adaptations in skeleton for upright posture -1 foramen magnum is directed downward so that the head may rest vertically on the
disorder of skeleton and joints -1 sprain - it involves a stretching or tearing of tendons or ligaments2
1 fibrous or immovable joints -occur between the bones of cranium amp in the tooth suckets commonly in the form of
characteristics of females skeleton -1 skull is lighter2 shoulders are nanow3 sacrum is