Female reproductive system - uterus (womb), Biology

Assignment Help:

UTERUS (WOMB) -

  • Large, pyriform, highly elastic. Development of embryo takes place in it.
  • It is located above and behind the urinnary bladder. Attached to body wall by mesometrium ligament.
  • In nulliparous woman, it is about 8 cm long 5 cm wide 2 cm thick, weighting 10-15 gms. Some what larger in multiparous woman.
  • It shows four regions -

               (i) Upper wide, dom shaped fundus that receives fallopian tubes.

               (ii) Cornuae the upper corners where the oviducts enter into uterus.

               (iii) Middle large body or corpus which is the main part.

               (iv) Lower narrow cervix that projects into vagina.

  • Cervix communicates with uterus by internal os. and with vagina by external os.
  • Cavity of cervix between external and internal os. is cervical canal. It is 2.5 cm long.
  • Cervix is composed of the biggest and most powerful sphinctor muscles in the body. It is strong enough to hold about 7 kg of foetus fluid.
  • In the wall of uterus outer layer is perimetrium, middle myometrium & inner endometrium.
  • Myometrium consists of inner & outer of longt. muscles and middle circular muscles. Longest involuntary muscles present here.
  • The cavity of uterus can be expanded 500 times during pregnancy from 10 cm3 to 5000 cm3.

Related Discussions:- Female reproductive system - uterus (womb)

What do you understand by pericardium, Q. What do you understand by Pericar...

Q. What do you understand by Pericardium? Pericardium is the covering sac of the heart. The pericardium prevents acute cardiac chamber dilatation. Acute pericarditis, pericardi

Ecology, what is ecology?sub divison of ecology?

what is ecology?sub divison of ecology?

Why should posterior wall preffered during surgery, Why should Posterior wa...

Why should Posterior wall preffered during surgery Posterior wall should not be perforated during surgery. This limits bleeding from the pterygoid plexus or branches of the max

Explain about the cardiovascular disease and stroke, Explain the Cardiovasc...

Explain the Cardiovascular disease and stroke? Obesity may be an independent risk factor for coronary heart disease (CHD) with the degree of obesity being directly proportional

Explain about genetic diversity, Q. Explain about Genetic Diversity? Ge...

Q. Explain about Genetic Diversity? Genetic diversity is the "fundamental currency of diversity" that is responsible for variation. This is the diversity of basic units of here

Cell biology, Introduction to Cell Biology Introduction to Cell Biology i...

Introduction to Cell Biology Introduction to Cell Biology illustrate about the evolution of the cell that involves two processes: 1) Occurrence of genetic variations which are p

Etiology of diarrhoea, Etiology   The causes of diarrhoea can be classi...

Etiology   The causes of diarrhoea can be classified as follows:  i)  Infectious causes   Viral  : Rota virus, Norwalk and allied viruses, Enterovirus, Influenza virus,

Ability of mammalian kidney, Normal 0 false false false ...

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

Deficiency diseases-fatty liver or fat cow syndrome , Fatty liver or fat co...

Fatty liver or fat cow syndrome (hepatic lipidosis, pregnancy toxaemia in cattle) Fatty liver or hepatic lipidosis is a major metabolic disease of dairy cows. It is caused by

Define iron factors affecting absorption of dietary iron, Define Iron Facto...

Define Iron Factors affecting absorption of dietary iron? We have read earlier that iron in foods occurs either as haem or non-haem iron. Haem iron comprises of iron in combina

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