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

Radiobiology, Radiobiology : This is the study of effects of radiations on ...

Radiobiology : This is the study of effects of radiations on living organisms. Radiobiology is a branch of science which concerned with the action of ions. Radiobiology is the radi

Detail description of connective tissue proper, CONNECTIVE TISSUE PROPER - ...

CONNECTIVE TISSUE PROPER - 1 .      AREOLAR TISSUE ( = Loose connective tissue) - Widely distributed connective tissue in the animal body. It consists of ground sub

St depression at rest, Q. What is ST depression at rest? As early as 19...

Q. What is ST depression at rest? As early as 1965 Ostrand called attention to the syndrome of short PR interval without accelerated conduction and it's association with ST dep

Homoeostasis, what stimulate the system in homoeostasis

what stimulate the system in homoeostasis

Periodicity - qualitative characters, Periodicity (Phenology, Aspection) ...

Periodicity (Phenology, Aspection) It refers to the study of seasonal changes in the community, that is, the periodic phenomena of organisms in relation to their climate. Peri

Protozoa, what is the classification of protozoa

what is the classification of protozoa

Defines the tenants of pangenesis theory, Defines the tenants of Pangenesis...

Defines the tenants of Pangenesis Theory Which of the following best defines the tenants of Pangenesis Theory? A. The hereditary material is composed in every organ/tissue a

Explain in details aerobic respiration, Explain in details Aerobic Respirat...

Explain in details Aerobic Respiration? The pyruvate produced in glycolysis is further broken down in most organisms. This process, called aerobic respiration, requires gaseou

Define about the composition of body weight, Define about the Composition o...

Define about the Composition of Body Weight? You might have read in previous units that our body weight is composed of muscle bone and fat. Segregating these components of body

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