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

Of which type of tissue is the heart made, Of which type of tissue is the h...

Of which type of tissue is the heart made? How is this tissue oxygenated and nutrified? The heart is made of striated cardiac muscle tissue. The heart muscle is known as the my

Sedentary or light activity lifestyles - physical activity, How Sedentary o...

How Sedentary or light activity lifestyles affects Physical Activity? These people have occupations that do not demand much physical effort, we not required to walk long distan

Explain major role in contributing towards motivation, Major role in contri...

Major role in contributing towards motivation. Psychological factors: Depression, anxiety or phobia induced by illness,  life- style changes or medication effects, may hinder

Describe the term physiotherapy, Describe the term Physiotherapy? Patie...

Describe the term Physiotherapy? Patients who are sedated, intubated and ventilated are not able to deep breathe, cough and clear secretions. Hence, it is important to do chest

Illustrate enzyme-substrate interaction, On what structural level of the en...

On what structural level of the enzyme (primary, secondary, tertiary or quaternary) does the enzyme-substrate interaction depend? The substrate binds to the enzyme in the activ

What is allantois, What is Allantois One of the extraembryonic eggs foun...

What is Allantois One of the extraembryonic eggs found in the amniote animals. The allantois contains the metabolic wastes created by the developing embryo. May also be involved

Explain some functions of riboflavin, Explain Some Functions of Riboflavin?...

Explain Some Functions of Riboflavin? Protective role: Riboflavin protects the octodermal tissues and prevents lesions  of the skin, eye and nervous system. Riboflavin amelior

Theileriosis, T h e i l e r io s i s It is also referred as t...

T h e i l e r io s i s It is also referred as tropical theileriosis and results in fever, enlargement of superficial lymphnodes, anaemia and jaundice. E tiolo

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