What are varices, Biology

Assignment Help:

What are varices? Why are they more common in the inferior limbs?

Varix means abnormal enlargement of veins. Varices happen when excessive pressure against the normal blood flux makes enlargement of the vein and thus insufficient functioning of its valves (venous insufficiency).

Varices are more common in the veins of the inferior limbs as the fluid column above these vessels is higher. This is the reason why people that spend much time standing (e.g., surgeons) are more susceptible to varices.

 


Related Discussions:- What are varices

Explain gum tragacanth, Gum Tragacanth  Gum tragacanth, the exudation o...

Gum Tragacanth  Gum tragacanth, the exudation of Astragalus species, is defined as the "dried gummy exudate" obtained from Astragalus gummifer Labillardiere. Gum tragacanth is

Permanent wilting percentage (pwp), Permanent Wilting Percentage (PWP) ...

Permanent Wilting Percentage (PWP) It is the percentage of moisture in the soil at which a plant wilts and does not recover unless water is added to the soil. PWP for clay is

Photosynthesis carbon dioxide, Q. Why is it said that during photosynthesis...

Q. Why is it said that during photosynthesis carbon dioxide is improved to form glucose? During photosynthesis carbon dioxide is energetically improve with hydrogen from water.

Can you explain hormones, Q. What are hormones? Hormones are substances...

Q. What are hormones? Hormones are substances collected by the circulation and secreted by the endocrine glands that act to produce effects upon specific tissues and organs and

How many g of h2so4 does contain, How many g of H2SO4 does  600 ml of a 1.2...

How many g of H2SO4 does  600 ml of a 1.2 M solution of H2SO4 contain? Please show all steps.

Explain operation for patients with high pvr, Explain Operation for Patient...

Explain Operation for Patients with High Pulmonary Vascular Resistance ? When the pulmonary vascular resistance is very high (6-8 units/m2) closure of ASD is done either with

Define methods for determining ph - nutritional biochemistry, Define Method...

Define Methods for determining pH? There are two general methods for determining pH of a solution. One is the colorimetric method and the other most common method is the use of

Explain adverse effects of stavudine, Explain Adverse effects of Stavudine ...

Explain Adverse effects of Stavudine Fatal lactic acidosis may happen more frequently with stavudine than with other NRTIs. Serum aminotransferase activity may enhance with sta

Genetic or acquired deficiency of the vitamin k metabolism, Q. Why are some...

Q. Why are some kinds of hemorrhagic diseases caused by genetic or acquired deficiency of the vitamin K metabolism? Deficiency of vitamin K predisposes to hemorrhages since thi

Invertebrates, 1) What are some characteristics that define the lifestyle o...

1) What are some characteristics that define the lifestyle of a parasitic nematode? 2) What are beneficial nematodes? Discuss their significance

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