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

External sources for health care, Normal 0 false false fals...

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

Deficiency diseases-iodine deficiency, Iodine  deficiency Iodine is an...

Iodine  deficiency Iodine is an important component of thyroid hormones, which play active role in several physiological process such as control of basal metabolic rate, oxidat

What do you know about vascular access, Q. What do you know about Vascular ...

Q. What do you know about Vascular Access ? Femoral and brachial arteries are still the commonest routes of access for aortography. Thoracic Aorta A sound knowledge of

How mineral salts participate in enzymatic activity, Q. How mineral salts p...

Q. How mineral salts participate in enzymatic activity? Many mineral salts are cofactors of enzymes that are the substances without which enzymes do not work.

History of plant classification, Q. History of plant classification? Be...

Q. History of plant classification? Before Darwin's theory of evolution and publication of his epoch making work 'Origin of Species' in 1959 no outstanding basis for the classi

Species diversity indices, From an ecological point of view, species richne...

From an ecological point of view, species richness alone has limited value. More meaningful measures use the number of different species in a given area (species richness) as well

Surgical treatment of infective endocarditis, Cardiac surgical intervention...

Cardiac surgical intervention has an increasingly important role in the treatment of intracardiac complications of endocarditis. Retrospective data suggest that mortality is unacce

Deoxyribonucleic acid (dna), Deoxyribonucleic acid (DNA) is the nucleic ac...

Deoxyribonucleic acid (DNA) is the nucleic acid composed of two polynucleotide strands wound around the central axis to form a double helix; the repository of genetic information.

Pollutants, These are solid, liquid or gaseous substance present in the atm...

These are solid, liquid or gaseous substance present in the atmosphere in such concentrations, as may be or tend to be injurious to human beings or other living creatures, plants a

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