Pulmonary arterial system changes, Biology

Assignment Help:

Q. Pulmonary Arterial System Changes ?

a) Pulmonary Plethora

With increased pulmonary arterial blood flow, pulmonary branches are visualized beyond the inner 2/3 of the lungs. Vessels in upper and lower lobes are dilated to the same degree. The number of end on vessels seen is 5 or more in both lung fields (or 3 or more in one lung field).

b) Pulmonary Arterial Hypertension

The features of pulmonary arterial hypertension are:

i) Central arterial enlargement, manifesting as an increased convexity of the pulmonary conus.

ii) Enlarged descending pulmonary artery, of more than 16 mm. Right descending arterial calibre of more than 25 mm is in keeping with Primary Pulmonary Hypertension.

iii) Sharp pruning of peripheral vasculature.

iv) Features of right ventricular hypertrophy and dilatation.

c) Pulmonary Oligemia

With reduced pulmonary flow, pulmonary vascular markings are markedly reduced, with vessels appearing attenuated. This is diagnosed radiographically only in patients with markedly decreased pulmonary flow.


Related Discussions:- Pulmonary arterial system changes

Explain tetanus and diphtheria, Tetanus and Diphtheria  Everyone who ha...

Tetanus and Diphtheria  Everyone who has had a primary series as a child should receive a tetanus-diphtheria toxoid (Td) booster injection once every 10 years. Before traveling

Ways to adapt to stress, Ways to adapt to stress Now that you know the...

Ways to adapt to stress Now that you know the nature of stress, let us see what type of strategies plants have acquired to adapt to stress. You know that biological functions

Explain about the electrophoresis, Explain about the Electrophoresis? E...

Explain about the Electrophoresis? Electrophoresis refers to the movement of charged particles because of an external electric field. Because charged molecules can be made to m

Radiolarians, In the living condition (found in sea) you would be able to o...

In the living condition (found in sea) you would be able to observe the following features in radiolarians: The cytoplasm is divided by a perforated and chitinous metnbrane into

Explain common concerns during pregnancy, Explain Common Concerns during Pr...

Explain Common Concerns during Pregnancy? Many of the physiological changes that occur during pregnancy affect the digestive tract and may cause discomfort to the mother. Most

Vascular tissues, VASCULA R TISSUES (= FLUID TISSUES) - The vascula...

VASCULA R TISSUES (= FLUID TISSUES) - The vascular tissues are of two types: blood and lymph.

Annelids - regeneration in invertebrates, Annelids - Regeneration in Invert...

Annelids - Regeneration in Invertebrates Between the segmented worms both the polychaetes and oligochaetes have remarkable powers of regeneration. Leeches totally lack this ca

Its possible to obtain probability of emergence of genotype?, How is it pos...

How is it possible to obtain the probability of emergence of a given genotype formed of more than one pair of different alleles with independent segregation from the knowledge of t

If the titration is done by adding naoh to a solution, If the titration is ...

If the titration is done by adding NaOH to a solution containing 2.661 moles of lysine, how many milliliters (mL) of a 5 M solution of NaOH would you have to add to reach point "E"

Explain arteries in comparison to veins, Which of the below statements does...

Which of the below statements does NOT apply to arteries when comparing them to veins: a) Have thick walls b) Carry blood away from heart c) Highly elastic walls d) Ha

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