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

Agro industrial-emerging and new generation by-products, Emerging and New G...

Emerging and New Generation By-Products Oil palm by-products are good examples of NCFR which are becoming increasingly important new feeds. This is associated with the rapidly

Define about the carbohydrates, Define about the Carbohydrates? In the ...

Define about the Carbohydrates? In the previous unit we have studied about the energy requirements. You now know that energy must be supplied regularly to individuals through t

Bio212, do you think the social and cultural environment of the 18th and 19...

do you think the social and cultural environment of the 18th and 19th centuries helped or hindered the study of microbiology in particular and science in general

What are synthetic auxins, What are synthetic auxins and what are their use...

What are synthetic auxins and what are their uses? Synthetic auxins, like indolebutyric acid (IBA) and naphthalenic acid (NAA) are substances same to IAA (a natural auxin) but

What do you understand by melanocytes, Q. What are melanocytes? Melanoc...

Q. What are melanocytes? Melanocytes are epithelial cells of the skin specialized in secretion of melanin and Melanin is a pigment that besides coloring the iris of the eye and

Kingdom animalia, in what order did the shellfish belong? in what genus did...

in what order did the shellfish belong? in what genus did the shellfish belong? in what species did the shellfish belong?

Amount of intracellular chloride ions in neuron a, Amount of intracellular ...

Amount of intracellular chloride ions in neuron A Neuron A is a healthy neuron with all the usual ion channels.  When at rest with a membrane voltage of R millivolts, neuron A

What is lipoproteins, A lipoprotein is a biochemical assembly which haves b...

A lipoprotein is a biochemical assembly which haves both lipids and proteins, bound to the proteins that allow fats to move by the water outside and inside cells. The proteins serv

Structure of the stomach, Describe the structure of the stomach. How is it ...

Describe the structure of the stomach. How is it modified to carry out its functions? How does it compare to that of the fetal pig?

Chemiosmosis, Chemiosmosis is the process by which the ATP is produced in ...

Chemiosmosis is the process by which the ATP is produced in inner membrane of a mitochondrion. It is the electron transport system transfers protons from the inner compartment to

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