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

ANIMAL COMMUNICATION, what is the excitation threshold of a neuron?how does...

what is the excitation threshold of a neuron?how does this threshold relate to the all or nothing rule of neural transmission

Types of polysaccharides on the basis of functionality, FUNCTIONAL L Y PO...

FUNCTIONAL L Y POLYSACCHARIDES ARE OF THREE TYPES - Storage, Structural, Mucopolysaccharides Storag e polysaccharides function as reserve food which can be hydrolyzed

Nervous tissue, This constitutes about 2.4% of the body weight of man viz. ...

This constitutes about 2.4% of the body weight of man viz. Brain-1400 gram Spinal nerve-150 gram Spinal cord-30 gram Cranial nerve-10 gram C.S.F. is altogether not present in

Explain the assessment of zn status, Explain the Assessment of Zn Status? ...

Explain the Assessment of Zn Status? Sensitive indices for assessing zinc status are unknown at present. Static indices, such as zinc concentration in plasma, blood cells and h

What is eutrophication, What is eutrophication" describe its consequences o...

What is eutrophication" describe its consequences on the life of plants and animals living in such waters. Why is oxygen depletion in a eutrophicated water-body faster at nigh

Control of radio-pollution , (i)        Area uses or perm...

(i)        Area uses or permit exposure to radiation should be Marked' Restricted Area 'or Radiation zone etc. (ii)        Avoid x-rays of chest and lower back in routine physic

Differ from our current use of retroviruses, In what way may we be able to ...

In what way may we be able to take advantage of retrotransposons in human gene therapy? How would this differ from our current use of retroviruses?

Mollusca, An account of characters of mollusca

An account of characters of mollusca

State the article - one hundred tests, Regarding the article "One Hundred T...

Regarding the article "One Hundred Tests" which of the following is a false statement? A. Genetic tests like the one developed by Counsyl can examine the multilevel genetic net

C dna amplification, Steps of C dna amplification 1.  Smart-pcr amplif...

Steps of C dna amplification 1.  Smart-pcr amplification of cdna is the technique which initiates with the change of mrna to cdna utilizing mmlv-rt, mutated in the rnase h dom

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