Aortic and pulmonary orifices, Biology

Assignment Help:

These circular orifices are located at the upper ends of the outflow parts of the left and right ventricles respectively. The pulmonary orifice which is 3 cms, is 0.5 cm larger than the aortic orifice. The aortic orifice is placed in front and to the right of the mitral orifice. The pulmonary orifice is placed above and to the left of the tricuspid orifice and the aortic orifice intervening between them. The pulmonary orifice is guarded by the pulmonary valve and the aortic orifice by the aortic valve. Each valve consists of three semilunar cusps. Each cusp is triangular. It has a convex edge which is attached to the part of the margin of the orifice. It has two free margins that meet at the apex of the cusp. Each cusp consists of a double fold of endocardium with some fibrous tissue in it. The region of the apex is thickened to form a nodule while crescentric parts near the free edges are called lunules.

903_Aortic and Pulmonary Orifices.png


Related Discussions:- Aortic and pulmonary orifices

Bones, which bone forms the non-moving muscle attachment in the hip joint

which bone forms the non-moving muscle attachment in the hip joint

What is bone remodeling, Bone Remodeling Bone remodeling differs from t...

Bone Remodeling Bone remodeling differs from the other means of bone structure alteration in that osteoblasts and Osteoclasts do not act independently but are coupled and bone

What is the procedure of uristix, What is the Procedure of Uristix 1. C...

What is the Procedure of Uristix 1. Collect the urine. 2. Remove one strip from bottle and replace cap. 3. Completely immerse reagent areas of the strip in urine and remo

Biosynthesis of amino acids, Microorganisms and Plants can synthesize all o...

Microorganisms and Plants can synthesize all of the 20 standard amino acids. Mammals, furthermore, cannot synthesize all 20 and must obtain some of them in their diet.  Those  amin

What is tertiary structure of a protein, Q. What is tertiary structure of a...

Q. What is tertiary structure of a protein? What are the major types of tertiary structure? The tertiary protein structure is a spatial conformation additional to the secondary

Differences between nervous system of man and rabbit, DIFFERENCE S BETWEEN...

DIFFERENCE S BETWEEN MAN & RABBIT - S.NO .   1. M A N   Brain round RABBIT   Elongated 2. Olfa

Growing leaves in the classroom, Growing leaves in the classroom A swee...

Growing leaves in the classroom A sweet potato will make dense foliage in the classroom if it is placed in water. Set the potato, root end down, in a glass or jar and keep the

Processed chicken products, P r o c esse d Chicken Products Prepar...

P r o c esse d Chicken Products Preparation of comminuted meat products is the best way to salvage meat from spent hens and broiler parent stock. Incorporation of whole eg

What is the structural representation of a carboxyl group, What is the stru...

What is the structural representation of a carboxyl group? Carboxyl groups have a carbon attached to single hydroxyl group by a simple bond and to one oxygen by a double bond.

Define non-dietary treatment of burns, Define Non-Dietary Treatment of Burn...

Define Non-Dietary Treatment of Burns? While good nutritional care should be provided to the patient as soon as feasible it is equally imperative and at times critical to provi

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