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

Male reproductive disorders, MALE REPRODUCTIVE DISORDERS Generally, ab...

MALE REPRODUCTIVE DISORDERS Generally, about 5-10% of cattle bulls reaching sexual maturity would be suffering from poor reproductive efficiency or sterility. Crossbreeding ha

What is oligosaccharides , Oligosaccharides are short chains of m...

Oligosaccharides are short chains of monosaccharides linked together by glycosidic bonds. In case of oligosaccharides  linked to proteins (glycoproteins)  or lipids (glycolipids) o

What is secretary diarrhoea, Q. What is Secretary diarrhoea? Secretary ...

Q. What is Secretary diarrhoea? Secretary diarrhoea: It is a result of active secretion OF electrolytes and water by the intestinal epithelium caused by bacterial and viral inf

Define causes of iodine deficiency disorders, Define Causes of iodine defic...

Define Causes of iodine deficiency disorders? We have studied above that iodine deficiency is a naturally occurring ecological phenomenon that is present in many parts of the w

What is paedomorphosis. explain in brief., What is Paedomorphosis. Explain ...

What is Paedomorphosis. Explain in brief. When sexually mature adults have characteristics which would normally be associated with the larval stage. It happens since reproducti

How is the concept of chromosome related to the gene, How is the concept of...

How is the concept of chromosome related to the concept of the gene? A chromosome is a DNA molecule. A chromosome may have several dissimilar genes and also DNA portions tha

Explain process of fatty acid composition, Explain process of Fatty acid co...

Explain process of Fatty acid composition We know fats/oils are made up of fatty acids. The number, position and geometry of double bonds within the fatty acids affect the rate

What is protein denaturizing, Secondary, tertiary, and quaternary structure...

Secondary, tertiary, and quaternary structures of proteins are spatial structures. Denaturizing is modification in any of these spatial structures that makes the protein deficient

Risk factor modification, Risk Factor Modification :  Even after CABG,...

Risk Factor Modification :  Even after CABG, patients are at risk of progression of native coronary artery disease and development of lesions in the conduits. Modification of

Discuss eukaryotic replication, Question 1 Discuss eukaryotic replication ...

Question 1 Discuss eukaryotic replication Question 2 Write an account on eukaryotic transcription factors Question 3 Write a detailed account on eukaryotic translation e

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