Surface markings of the heart, Biology

Assignment Help:

The Upper Border of the Heart

A:  Mark a point on the lower border of the left second costal cartilage 1.2 cm away from the sternal margin.

B:  Mark a point on the upper border of the right third costal cartilage 1.2 cm away from the sternal margin.

Join these two points with a straight line. The line marks the upper border of the heart which is formed by the atria. Right atrium forms the right one-third and the left atrium forms the  left two   third of the upper border.

Right Border of the Heart

C:  Mark a point on the right sixth costal cartilage 2.5 cm away from the sternal margin.

Connect points B and C a lie which is slightly convex to the right and this line will mark the right border. The right border is formed by the right atrium. 

Lower Border of the Heart

D:  Mark a point in the left fifth intercostal space 9 cm. from the median plane. Join points C and D by a line which passing through the xiphisternal joint. The right twothirds of the lower border is formed by the right ventricle and the left one third is formed by the left ventricle.


Related Discussions:- Surface markings of the heart

Amoeboid protozoan, Amoeboid Protozoan Amoeboid protozoan are distingu...

Amoeboid Protozoan Amoeboid protozoan are distinguished by the presence of flowing extensions of their body known as pseudopodia. These are used for feeding and locomotion. Th

Metabolism of fructose, Fructose is an abundant sugar in the human diet; su...

Fructose is an abundant sugar in the human diet; sucrose (table sugar) is a disaccharide that when hydrolyzed yields glucose and fructose and fructose is also a major sugar in hone

Vertebrate kidney, Normal 0 false false false EN-IN X...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Difference between ectoparasite and endoparasite, What is the difference be...

What is the difference between ectoparasite and endoparasite? Ectoparasites are parasites that explore the external surface of the host (as, for example, mites that parasite th

Amoeba, Nutrition in amoeba?

Nutrition in amoeba?

Fibre requirement in chronic diarrhoea, Q. Fibre requirement in chronic dia...

Q. Fibre requirement in chronic diarrhoea? Fibre: Insoluble fibre in the form of skins, seeds and structural plant materials should be strictly avoided to minimize on the irrit

List the five functions controlled by hypothalamus, List the five functions...

List the five functions controlled by hypothalamus. Hypothalamus controls many important functions which are as follows: a) Blood pressure control b) Hunger and thirst

Connective tissue and its types, CONNECTIV E TISSUE Connective tiss...

CONNECTIV E TISSUE Connective tissues are formed by the mesoderm of the embryo. Three components are present in the connective tissues- (i) intercellular medium

Difference between alpha glucose and beta glucose, What is the difference b...

What is the difference between alpha glucose and beta glucose? Why are they different?

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