Is the Heart a muscle or Organ?

[Elmo]

An organ is a differentiated group of cells that perform a specific function.

it's also a type of piano commonly found in churches that makes music by pushing air through tubes

[Yohji]

the strongest muscle in ur body is actually your tongue

Hearts make better puppets though..

[Knoxville]

And elmo it isnt a type of piano, a piano is a stringed instrument that is played by depressing keys that make hammers strike the strings. Organs dont have strings, but they do have a keyboard.

Aren't we Mr Pedantic today

[oralpain]

It's an organ made almost entirely out of cardiac muscle, so both.

[Elmo]

the question is tho, do i care? the answer would be no

[autopilot]

Yep, both is right. It's like saying, "is it a leg or a limb?"

[oralpain]

the question is tho, do i care? the answer would be no

Any bit of knowledge, no matter how obscure or trivial it may seem, could turn out to be useful.

[Elmo]

*whispers* i already knew, i was being sarcastic when i gave the other meaning of organ - everyone seems to have missed that tho

[mmh]

its a muscle while being a major organ

[shiato storm]

the heart is, essentially, a grouping of homogenous muscle cells (all of the same type) that rhythmically contract to perform a pumping action that facilitates the movement of blood around the body. the synchronicity of the contractions is governed by the presence of perkinje fibres running from between the atria down the septum towards the apex. when a spontaneous contraction is initiated from the sinoatrial node it is conducted laterally across the atria and rapidly vertical down the perkije fibres in order that the atria fill the ventricles which then contract (from the apex where perkinje fibres transmit to) upwards forcing blood out of the heart to the aorta (and the rest of the body) or pulmonary artery (to the lungs for re-oxygenation of the blood). if there were no perkinje fibres contractions would be asynchronous and ventricles would contract at the same time as atria...and no blood would be pumped.

its a while since I did a-level heart machanics but I believe that is correct. brief but to the point. I could go one about ejection pressure, heart filling, Starling's law etc. ad nausiam...but I wont.

[rajagra]

the strongest muscle in ur body is actually your tongue

(Blush)

[KBeee]

its a muscle while being a major organ

But a major organ is found in a church or olde worlde kinema

[autopilot]

the heart is, essentially, a grouping of homogenous muscle cells (all of the same type) that rhythmically contract to perform a pumping action that facilitates the movement of blood around the body. the synchronicity of the contractions is governed by the presence of perkinje fibres running from between the atria down the septum towards the apex. when a spontaneous contraction is initiated from the sinoatrial node it is conducted laterally across the atria and rapidly vertical down the perkije fibres in order that the atria fill the ventricles which then contract (from the apex where perkinje fibres transmit to) upwards forcing blood out of the heart to the aorta (and the rest of the body) or pulmonary artery (to the lungs for re-oxygenation of the blood). if there were no perkinje fibres contractions would be asynchronous and ventricles would contract at the same time as atria...and no blood would be pumped.

its a while since I did a-level heart machanics but I believe that is correct. brief but to the point. I could go one about ejection pressure, heart filling, Starling's law etc. ad nausiam...but I wont.

Yes, Google is a wonderfull thing.

[shiato storm]

Yes, Google is a wonderfull thing.

actually if you really must know I took biology gcse (years ago) Alevel (a few less years ago), followed by a degree in physiology (again not too long ago) and then a Masters in physiology (just a couple of years ago now) so really google would have been a waste of my time cause I kind of know it off by heart ['scuse the pun]. so whats written there is without any aid, i simply used the most resources hungry organ in the body to describe the second most - though this may be debated in some cases

[mmh]

ask google the answer to life the universe and everything... its up on its literature that thing

[autopilot]

Take a joke people. blimey.