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

Explain the function of muscular tissue, How can the presence, localization...

How can the presence, localization and function of muscular tissue in beings of the phylum Annelida be explained? In these beings there are a longitudinal muscular layer under

Fungi, what is the symmetry of fungi?

what is the symmetry of fungi?

What are the main types of inheritances - epistasis, According to Mendel's ...

According to Mendel's law phenotypical characteristics would be verified by pair of factors (alleles) that separate independently in gametes. What are the main types of inheritance

Explain defensive proteins, Explain Defensive Proteins These proteins p...

Explain Defensive Proteins These proteins protect against diseases. Antibodies are the example of defensive proteins. These  combat bacteria and viruses. Also, immunoglobulins,

Define measuring body composition - underwater weighing, Define Techniques ...

Define Techniques for Measuring Body Composition - Underwater weighing? Underwater weighing (densitometry): It applies the Archimedean principle of water displacement by the fu

Where are blood cells made in the body, Where are blood cells made in the b...

Where are blood cells made in the body? Blood cells are made in the red bone marrow, e.g. in the ribs, sternum or vertebrae.

Asymptomatic patient-chronic mitral regurgitation, Asymptomatic patient: ...

Asymptomatic patient: The current opinion is that in asymptomatic patients with left ventricular dysfunction and severe MR surgery should not be delayed. The echo cardiographic a

fat digestion requires two steps, Fat digestion requires two steps? What a...

Fat digestion requires two steps? What are the steps and what enzymes are used to accomplish each step?

What is the difference between diffusion and osmosis, Q. What is the differ...

Q. What is the difference between diffusion and osmosis? Osmosis is the phenomenon of movement of solvent particles in general, water from a region of lower solute concentratio

How can bacteria produce human insulin, Q. How can bacteria produce human i...

Q. How can bacteria produce human insulin on an industrial scale? What are the other forms of insulin made available by the pharmaceutical industry? Bacteria don't naturally sy

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