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

Define plasma as fluid compartment - extracellular fluid, Define plasma as ...

Define plasma as Fluid Compartment - extracellular fluid? Plasma is the only major fluid compartment that exists as real collection of fluid all in one location. It differs fro

Difference between unconditioned & conditioned reflex action, Difference be...

Difference between unconditioned and conditioned reflex action- S.NO .   1. UNCONDITIONED   It is inborn CONDITIONED

Cutaneous larva migrans, Cutaneous larva migrans Cutaneous larva migrans, ...

Cutaneous larva migrans Cutaneous larva migrans, also known as creeping eruption, creeping verminous dermatitis or serpiginous eruption, is caused by larvae of many nematodes, viz

Drawbacks of free food items for diabetics patients, Drawbacks of Free Food...

Drawbacks of Free Food Items for diabetics patients In this context, it is important to note that a patient can have unlimited servings of 'free foods'. These are foods which d

What is the gross primary production of an ecosystem, Q. What is the gross ...

Q. What is the gross primary production of an ecosystem? How does GPP relate to photosynthesis? The Gross primary production of a GPP or ecosystem is the quantity of organic ma

Regeneration - development biology, Regeneration - Development Biology ...

Regeneration - Development Biology Regeneration has, intrigued scientists for several generations and has resulting in voluminous literature on the subject beginning from the

Define types of indicators, Define Types of Indicators? Macro indicator...

Define Types of Indicators? Macro indicators are used at strategic levels while micro indicators are used at performance levels. From the previous sections it is clear that man

Explain the sticky films - food microbiology, Explain the Sticky Films - Fo...

Explain the Sticky Films - Food Microbiology? Sticky films or tape are pressed against the surface to be assessed. Exposed film/tape is then pressed on the agar plate and analy

Etiological factor of diverticular disease, Q. Etiological factor of divert...

Q. Etiological factor of diverticular disease? The causes of diverticular disease are not certain, but several factors may contribute to changes in the wall of the colon. These

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