External features of human heart, Biology

Assignment Help:

External features of human heart

  1. Human heart is a muscular, hollow organ situated slightly towards left side of the thorasic cavity.
  2. It is made up of special muscles called cardiac muscles.
  3. It is conical in shape with apex facing downwards and the broad base directed upwards.
  4. It is the size of the fist of the person.
  5. It is protected on all sides by rib cage and by vertebral column on the backside.
  6. Heart is enclosed in a double layered transparent membrane called pericardium.
  7. Pericardium is filled with a fluid called pericardial fluid, Which protects the heart from physical shocks, blows and frictions.
  8. External grooves indicate the internal division of the heart into four chambers. The anterior (upper) two chambers are auricles and the posterior (lower) two chambers are ventricles. These auricles and ventricles are separated by horizontal and vertical grooves (lines) and formed as four chambers.
  9. Venacavae bring deoxygenated blood to the heart. Aortae carry oxygenated blood from the heart.

Related Discussions:- External features of human heart

What is choanocytes, Which one of the following statements about all the fo...

Which one of the following statements about all the four of Spongilla, Leech, Dolphin and Penguin is correct? 1. Penguin is homiothermic while the remaining three are poikilothe

Which of the processes results in the atp, Which of the processes results i...

Which of the processes results in the most ATP production within a cell?

Respiration, what is the bet way to asses energy production in the body of ...

what is the bet way to asses energy production in the body of an athlete?

State about visual system, State about visual system It is important fo...

State about visual system It is important for our visual system to  adapt to  recognize objects clearly  in  differing conditions of  light. The main mechanisms concerned with

How far from the building should the fire hose be located, A fire hose ejec...

A fire hose ejects a stream of water at an angle of 38.8 ° above the horizontal. The water leaves the nozzle with a speed of 26.6 m/s. Assuming that the water behaves like a projec

Determine the term - language abilities, Determine the term -  Language Ab...

Determine the term -  Language Abilities The study of aphasia and acquired language disorders was one of the driving forces in the growth of neuropsychology in this century. Th

Explain difference between monosaccharides and disaccharides, What is the d...

What is the difference between monosaccharides and disaccharides? What are some examples of disaccharides and of monosaccharides that form them? Monosaccharides are simple mole

Describe RNA Structure, The basic parts of RNA are the same than for DNA wi...

The basic parts of RNA are the same than for DNA with two major differences. The pyrimidyne base uracil exchange thymine and ribose replace deoxyribose see the sugar, pyrimidines a

What is cerebral hemorrhage, What is Cerebral Hemorrhage Cerebral hemor...

What is Cerebral Hemorrhage Cerebral hemorrhage is a massive bleeding into the substance of the brain. The most frequent cause is high blood pressure, or hypertension. Other ca

Genetics of nitrogen-fixation, Genetics of Nitrogen-fixation The genet...

Genetics of Nitrogen-fixation The genetics of nitrogen-fixation is known in detail in Klebsiella pneumoniae. There are twenty genes required in organising the complete N 2 -fi

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