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semen -sperms and secretion of accesory glands collectively known as seminal fluid or semenit is milky semi-solid in nature having particular smell
accessory glands -1 prostate gland -one in number 4-5 lobed it forms 15-30 of semencitric acid lipid acid phosphatase spermin
urethra -it is common duct as sperms amp urine both pass from itit receives juices of prostatic gland amp cowpers glandurethra is 20 cm long passes
seminal vesicles uterus mesculanis -seminal vesicles are elongated convoluted musculo glandular sac about 4 cm long 9 cm if straightenedlined by
vasa diffrentia -originate from wollfian ductit comes out fo cauda epdidymis enters into abdominal cavity through inguinal canal forms loop round the
epididymis -all seminiferous tubules form short straight tubules as tubuli recti open into wider network of rete testisfrom rete testis 15-20 fine
types of asexual reproduction1binary fission-amoeba2multiple fission-amoeba3sporulation-amoeba4plasmatomy-it is in multinucleate protozoan as
animal reproduction -reproduction is the ability to produce new organism of its own type it is meant to increase their numberreproduction includes -i
care of eyes -1 eyes should be periodically examined in children2 while reading the paper should be
difference between distant object and near object -distant objectnear object 1 parallel light reaches to eye 2 cilliary muscles are
difference between eye and camera - camera eye1 box 2 black inner paint 3 shutter 4 diaphragm 5 light hole 6 lens 7 light
difference between aqueous humour and vitreous humour -aquous humourvitrous humour1 occurs in aquous chamber 2 watery fluid like 3 secreted
difference between blind spot and yellow spot -blind spotyellow spot1 it lies litte away from yellow spot 2 no pigment 3 optic nerves
difference between rods and cones -rodscones 1 more in number 1150 lakh 2 outer seg is cylindrical and contains rodopisin 3 rods are
working of eye -human eye is sensitive to light wavelenght ranging from 380 - 760 nmbees ants spiders and gold fish can see uttraviolet light which
lens - in lumen of eye ball a large colourless transparent more convex on back side lens present covered by lens capsulewhen white tissues are
sclerotic -white of eye outer thick made up of fibres connective tissue protective layer give definite shapeits anterior 16 part is thin transparent
conjunctiva -ectodermal in origin formed by epidermis it is thin transparent covers corneamade up of stratified epithelium it has 2 parts -i ocular
glands -1 lacrymal glands -tear glands numbers are 3its secretion is aquous amp salty keeps eye ball wet give nourishment to
eyelids -3 in number dermis is thinnest in it upper and lower eye lid with eye lashes upper eye lid is more motilein reptiles lower eye lid is more
eyehistory -stevan described it first study of eye is ophthalmology instrument used to examine interior of eye is ophthalmoscopeshape -more or
equilibrium -cristae and maculae are concerned with equilibrium1 dynamic equilibrium -cristare detect turning or rotational
middle ear -protected by tympanic bone its cavity is tympanic cavityit is lined by simple cilliated columnar epithelium it is connected to naso
ear it is phono receptor as respond to sound wavesit is teloreceptor as receive stimuli from far distanceit is stato-acousting organ as concerned
receptors are sense organs that receive stimulion the basis of their location in body receptors are of following types -1