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

Cell wall, CELL WALL Discovered by Robert Hooke , 1665 when he saw ...

CELL WALL Discovered by Robert Hooke , 1665 when he saw dead empty cork cells. Bonne r - studied the chemical nature of cell wall. The cell wall is a rigid & prote

What is the meaning of ideometric approach, What is the meaning of Ideometr...

What is the meaning of Ideometric approach Ideometric approach in the context of neuropsychological assessment emphasises the patient's premorbid functioning with reference to

Define about the absorption of iron, Define about the Absorption of Iron? ...

Define about the Absorption of Iron? Before it can be absorbed, iron whether it is in the form of haem or non-haem must be released from the food matrices where it is bond with

Show nutrition guidelines for prevention of heart disease, Q. Show Nutritio...

Q. Show Nutrition guidelines for prevention of heart disease? Nutrition guidelines for prevention of heart disease as suggested by WHO are highlighted. Details regardin

Connecting implants to natural teeth, Connecting implants to natural teeth ...

Connecting implants to natural teeth and use as pier abutments The issue of connecting implants and teeth to support a fixed prosthesis is controversial and unresolved. The inh

Defence mechanisms of the host, Defence mechanisms of the host The hea...

Defence mechanisms of the host The healthy animal is protected from pathogenic organisms present in the environment by virtue of the effective immune mechanism present from bi

Animal kingdom, what is animal kingdom and what are its functions

what is animal kingdom and what are its functions

Explain the decolourizing agent - ziehl-neelsen method, Explain the Decolou...

Explain the Decolourizing Agent - Ziehl-Neelsen Method? Acid alcohol - a mixture of 95% ethanol and 3% HCI - is used for decolourization. Before decolourization, smear is allow

Amoeba, figure of contractile vacuole of amoeba

figure of contractile vacuole of amoeba

Ideal eia and measures and benefits of eia, An ideal EIA system would: ...

An ideal EIA system would: (i)     Apply to all projects that are expected to have significant environmental effects and address all impacts that are expected to occur due to t

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