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

Veterbrate, Draw and describe the structure of amphibian,reptile mammal and...

Draw and describe the structure of amphibian,reptile mammal and bird

Class arachnida of phylum arthropoda, Class Arachnida of Phylum Arthropoda ...

Class Arachnida of Phylum Arthropoda Body divided into cephalothorax and abdomen. Cephalothorax along with four (4) pairs of legs; abdomen segmented or unsegmented, with or wi

How can total count can be obtained?, How Can Total Count Can Be Obtained? ...

How Can Total Count Can Be Obtained? Total count can be obtained microscopically by using fluorescent dyes such as acridine orange or DNA stain DAPI. The counts obtained micros

Explain about the term - paediatric neuropsychologist, Explain about the te...

Explain about the term - paediatric neuropsychologist In the evaluation of infants and young children, all sources of reliable and valid data available to the paediatric neurop

External factor - factor controlling metamorphosis in insect, External fact...

External factors - Factors Controlling Metamorphosis in Insects In few cases an external factor may be accountable for initiating moulting, as for instance in the blood su

Write down all the four quantum numbers of the electron, Write down all the...

Write down all the four quantum numbers of the electron in the outermost shell of rubidium (At. no.= 37) atom. a) What type of hybridization is associated with N in NH 3 ? b

Adverse effects of air pollution, Air pollution affects both living and non...

Air pollution affects both living and non-living matter. The effects can be classified as.

What is the heterophagic intracellular digestion, Q. What is the heterophag...

Q. What is the heterophagic intracellular digestion and How is this process accomplished? Heterophagic intracellular digestion is the breaking into smaller substances of extern

Molecular bio, he recombinant plasmid extracted from the surviving colonies...

he recombinant plasmid extracted from the surviving colonies contains a gene called SUC2 that codes for convertase, an enzyme needed to metabolize sucrose. Mutations in the SNF gen

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