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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
cell body cyton or soma or perikaryon -it is nucleated amp broader part of neuronit may be up to 135 mm in diameter and may be irregular spherical
nervous tissuethe nervous tissue in general develops from the ectoderm of the embryo but the microgliocytesit does not have a matrixthe special
contractile cellsin addition to above mentioned three types of muscular tissue there are contractile cellsthese are as follows1
differences between striated non-striated and cardiac muscle fibres - striated
similarities between cardiac and skeletal muscles -both cardiac and skeletal muscles are made up of elongated fibres which have numerous
differences between single-unit and multi-unit smooth muscles single-unit smooth muscles multi-unit smooth muscles1they are composed of
differences between myosin and actin filaments myosin filaments primary filaments actinfilaments secondary filaments1found only in a-band
differences between a and i bands a-band anisotropic band i-band isotropic band1it has wide h-zone1it has thin z-line2it gives dark
striped muscles -these muscles are found in the limbs body walls tongue pharynx and beginning of oesophagus and are under the control of animals
types - there are present three types of muscle fibres 1 striped or striated or skeletal or voluntary