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small intestine -a narrow tube 6 m long in rabbit 4 m longdifferentiated into duodenum jejunum amp ileumi duodenum -25 cm long c-shaped u-shaped in
stomachit is wide j-shaped placed obliquely on left side in upper abdominal cavity so left kidney is slightly down wardit is 30 cm long and 15 cm
oesophagus -gullet opens in oesophagus first organ of alimentary canalafter piercing diaphragm it form stomach in abdominal cavityno digestion in it
pharynx -commom system between digestive system and respiratory systemin it gullet and glottis presentgullet leads to oesophagus glottis lead to
buccal cavity -situated between upper amp lower jaw it is lined by stratified squamous epitheliumseparated from nasal chamber by palate palate forms
mouth -it is as transverse slit it is pseudo type ie not open directly into alimentary canalmouth is covered by upper amp lower movable lips movement
digestive system of mammalsthe tube from mouth up to anus is called alimentary canalalimentary canal of man is about 9 meter and rabbit is about
the calorie value -the amount of heat liberated from complete combusion of 1gm food in a bomb caloriemeter a closed metal chamber filled with o is
foodfood consists of h o minerals vitamins carbohydrate lipid amp proteina person needs 1600 cal per day this is bmr basal metabolic rateneeded 2500
different feeding habitsfeeding habits of animals depend on the nature of the food consumedherbivorous when plants are eaten examples - horse cow
heterotrophic nutritionanimals derive organic food materials by consuming products of plants - heterotrophic nutritiontypes of heterotrophic
autotrophic nutrition preparation of organic food from the inorganic materials in the living bodymay be photoautrophic eg euglena virdisimamay be
animal nutritionnutrition is the procurement of substances necessary for growth maintenance and activities of a living body the substances used for
functions of skin -skin performs various diverse functions that is why it is called jack of all trades1 protection - the skin
dermis corium -mesodermal in origin more developed partleather is obtained from dermis by tanning thinnest in eye lid connective tissue presentin it
other glands -i mammary glands -study of mammary gland is mastology modified sweat gland4-5 pairs in rabbit 1 pair in human in opposum 25 pairs max
glands -1 sebaceous gland -absent in palm and sole holocrine in naturebranched alveoli are present sac like in
nails -cover terminal segment of fingers amp toeshighly vascular dermis under lying the nail is called nail bedit gives pinkish colour to nailthe
claws -in rabbit and other animals claws present made up of keratine or s corneumdorsal plate is unguise amp ventral plate is sub unguisehelpful in
skin - largest organ of body it is covered by hairs or pelage ie pilliferastudy of skin is dermatology outermost covering of bodyskin is elastic
neuroglia cells rudolf virchow 1846 -occurs in the cnsthe cells are less than neuronsneuroglia cells are of four types -i oligodendrocytes - occurs
differences between medullated and non-medullated nerve fibres 1medullated myelinated nerve fibresmedullary sheath is
nerve fibres -axon or dendrite of a nerve cell covered with one two or three sheaths is called nerve fibredendrites are surrounded only by one sheath
types of neurons -the neurons are classified on the basis of their structure and functiona on the basis of the structure the neurons are of four
differences between axon and dendrite dendron axon dendrite dendron1it is single per neuron1it may be one or many per neuron2it has