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)

Define recommended intake of fibre, Define Recommended Intake of Fibre? ...

Define Recommended Intake of Fibre? 1. A minimum of fibre intake of 20 g/day is recommended by the American Dietetic Association (ADA), the National Cancer Institute, US and th

Variability in populations, Variability refers to the differences in herita...

Variability refers to the differences in heritable traits exhibited by the individuals of a species. One of the major contributions of Darwin to the study of evolution was his book

Difference between plant systematic and taxonomy, Q. Difference between pla...

Q. Difference between plant systematic and taxonomy? Before coming to principles of taxonomy let us discuss the difference between taxonomy and systematic. Systematic is the sc

Explain congenital syphilis, Congenital Syphilis  A positive serologica...

Congenital Syphilis  A positive serological test for syphilis in a newborn without stigmata of syphilis may be due either to passive transfer of maternal antibodies or to prena

Which functional group cross-linked in protein, Which functional group (sid...

Which functional group (side-chain) can be "cross-linked" in protein? a. sulfhydryl b. amino c. Phosphate d. Hydroxyl e. Carboxyl

Define the luminal membranes, A healthy person is on a diet that consists o...

A healthy person is on a diet that consists of very small amounts of water. A. This person will have high water permeability across the luminal membranes of the medullary colle

Chronic renal failure , Chronic Renal Failure (CFW) Chronic renal fai...

Chronic Renal Failure (CFW) Chronic renal failure begins when the diseased kidney can no longer maintain the normal chemical structure of body fluids under normal conditio

Research to improve health care delivery, Research to Improve Health Care D...

Research to Improve Health Care Delivery: Today, much  of health  care  delivery  system remains  imitative  and intuitive rather than innovative,  creative or  scientific in

Explain about the stilbenes, Explain about the Stilbenes? Stilbenes con...

Explain about the Stilbenes? Stilbenes contain 3 phenyl compounds connected by a 2-carbon methylene bridge and occur in nature in restricted distribution. In plants, they act a

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