Excretory system - urinary bladder, Biology

Assignment Help:

URINARY BLADDER -

Pear shaped sac like. Situated in pelvic region of abdominal cavity. Ventrally placed.

Lined by transitional epithelum. Detrusor muscle i.e. to expell out present.

Outer covering is serous membrane.

Urinnary bladder when convert into urethra at that point sphinctor present made up of striped muscles i.e. Trigon.

Emptification of urinnary bladder is micturition. For micturition 300-400 ml. urine is needed.

Diaphragm is helpful in micturition.2 reflexes occur in bladder storage reflexes are vioding reflex and release reflex.

Bladder can store 700-800 ml. urine. Bladder is absent in snakes, crocodile, birds and prototheria.

In struthio present exceptionaly.

URETHRA

It starts from lower part of bladder. Open in male thorugh urinogenital aperture on glanse of penis.

In female on vulva by urethral opening.


Related Discussions:- Excretory system - urinary bladder

Why greenhouse gases lead to global warming, Explain briefly why 'greenhous...

Explain briefly why 'greenhouse' gases lead to global warming. The greenhouse gases do not interfere with the short-wave radiation reaching the Earth from the sun but take up t

Explain red anthocyanin pigments, Explain Red anthocyanin pigments Red ...

Explain Red anthocyanin pigments Red anthocyanin pigments from miracle fruit were isolated and tested in carbonated beverages, in combination with the organic acids. Pigments d

Pre-procedural mouth rinse, Pre-procedural mouth rinse Patients' use of...

Pre-procedural mouth rinse Patients' use of a an anti-microbial mouthwash of 0.12% chlorhexidine gluconate solution for 30 seconds prior to intra-oral procedures will reduce th

Determine the nutritional and functional role of selenium, Minerals:- Sele...

Minerals:- Selenium  Food Source       Sea food, organ meats, cereals (levels vary depending on soil levels) Nutritional Functional role Essential nutrient: Keshan

Express difference between chromosomes and chromatin, What is the differenc...

What is the difference between chromosomes and chromatin?

Safety, S a f e ty, ethical and welfare considerations Development ...

S a f e ty, ethical and welfare considerations Development of transgenic organisms is proceeding in an environment of intense public debate about safety, environmental impa

Explain phenetic classification, Phenetic Classification This system is ...

Phenetic Classification This system is based exclusively upon face value of observed characters without direct reference to phylogeny. The taxa are either classified on the basi

Define the term - dna polymerase, Which of the following best describes the...

Which of the following best describes the reasons why the sliding clamp is able to confer processivity on DNA polymerase and not DNA primase? A. The sliding clamp coats the tem

Explain about crossing over, What is crossing over? How is meiosis related ...

What is crossing over? How is meiosis related to this phenomenon? Linked alleles, for instance, A-b and a-B, form the gametes A-b and a-B that maintain the linkage of the allel

Chemical stress - mineral composition, Chemical Stress - Mineral compositio...

Chemical Stress - Mineral composition The living systems make use of several mineral ions that they might have encountered at the very origin or during evolution, particularly

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