Human ovum, Biology

Assignment Help:
  • A pair of ovaries are the reproductive organs in woman.
  • They are present just below the kidneys in the abdominal cavity.
  • Each ovary has several sac like structures called ovarian follicles or Graffian follicles.
  • Each follicle has a centrally placed large cell called ovum.
  • The ovum is formed from a cell called primary oocyte.
  • When the ovum matures, the follicle ruptures and releases the ovum (haploid) into the body cavity.
  • Ovum is non-motile and is larger in size compared to spermatozoa.
  • Every time one follicle ruptures and one ovum is released.
  • The ruptured follicle is called corpus luteum and it secretes female sex hormone - oestrogen & progesterone.
  • Follicle stimulating hormone secreted by pituitary gland stimulates the growth of follicle and leutinizing hormone secreted by pituitary gland stimulates the rupture
  • of follicle and conversion of follicle in to corpus luteum.

Related Discussions:- Human ovum

Meroblastic or partial cleavage, Meroblastic or partial cleavage The e...

Meroblastic or partial cleavage The egg does not divide totally because divisions are restricted to only a part of the egg where as the rest of the egg remains completely uncl

Respiratory lining of human lung, Normal 0 false false fals...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Explain milling extraction rate, Explain Milling extraction rate The ch...

Explain Milling extraction rate The chemical composition of the flour depends on the milling extraction rate.  Increasing the rate of flour extraction decreases the proportion

Propose an experiment to test, Can enhancers work in Trans? That is, can an...

Can enhancers work in Trans? That is, can an enhancer on one piece of DNA activate a promoter on another piece of DNA? Propose an experiment to test this. Be sure to discuss any ap

What anatomical direction with respect to occipital cortex, The frontal cor...

The frontal cortex is in what anatomical direction with respect to the occipital cortex? a. anterior b. posterior c. sagittal d. inferior

Diagram, #questioi want clarius diagramn..

#questioi want clarius diagramn..

Hepatic portal system and the pulmonary circuit, Trace the flow of blood th...

Trace the flow of blood through the systemic circuit (hepatic portal system) and the pulmonary circuit, beginning and ending in the left ventricle .  You will be using named chamb

Uses of plural embryos, Uses of Plural Embryos Although the basic tha...

Uses of Plural Embryos Although the basic that trigger causes polyembryony are not fully understood, there has been no dearth of interest in exploiting supernumerary embryos.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd