- published: 27 Oct 2009
- views: 10678945
The heart is a myogenic muscular organ found in all animals with a circulatory system (including all vertebrates), which pumps blood throughout the blood vessels by repeated, rhythmic contractions. The term cardiac (as in cardiology) means "related to the heart" and comes from the Greek καρδιά, kardia, for "heart".
The vertebrate heart is principally composed of cardiac muscle and connective tissue. Cardiac muscle is an involuntary striated muscle tissue found only in this organ and responsible for the ability of the heart to pump blood. The average human heart, beating at 72 beats per minute, will beat approximately 2.5 billion times during an average 66 year lifespan. It weighs approximately 250 to 300 grams (9 to 11 oz) in females and 300 to 350 grams (11 to 12 oz) in males.
In invertebrates that possess a circulatory system, the heart is typically a tube or small sac and pumps fluid that contains water and nutrients such as proteins, fats, and sugars. In insects, the "heart" is often called the dorsal tube and insect "blood" is almost always not oxygenated since they usually respirate (breathe) directly from their body surfaces (internal and external) to air. However, the hearts of some other arthropods (including spiders and crustaceans such as crabs and shrimp) and some other animals pump hemolymph, which contains the copper-based protein hemocyanin as an oxygen transporter similar to the iron-based hemoglobin in red blood cells found in vertebrates.
You're going to dance,
You're going to dance,
You're going to dance,
And have some fun.
Dig!
The chills that you spill up my back,
Keep me filled with satisfaction when we're done,
Satisfaction of what's to come.
I couldn't ask for another.
No, I couldn't ask for another.
Another try...
Your groove, I do deeply dig,
No walls, only the bridge,
My supperdish, my succotash wish.
Sing it, baby!
I couldn't ask for another. (uh-huh, uh-huh)
No, I couldn't ask for another.
Groove is in the heart,
Groove is in the heart,
Groove is in the heart (astronomical!),
Groove is in the heart (hit me!).
Watch out!
The depth of hula groove,
Move us to the dance hoop,
We're gonna groove to Horton Hears A Who-oo!
I couldn't ask for another.
No, I couldn't ask for another.
DJ Soul was on a roll,
I've been told he can't be sold,
He's not vicious or malicious,
Just de-lovely and delicious.
I couldn't ask for another.
Oh, somethin' lives in this torso here,
Hot, got a deal, you wanna know,
Delightful, truly deee-liteful,
Like makin' it, doin' it,
'specially at a show (show).
Feelin' kinda high like a "Hendrix haze" (haze),
Music makes motion moves like a maze (maze),
All inside of me, heart especially,
Help of the rhythmn, where I wanna be.
C'mon flow and glow with electric eye,
As you dip to the dive baby you'll realize,
Baby you'll see the funky side of me,
Baby you'll see that rhythmn is the key.
Get, get with it, with it,
Can't think, quit it, quit it,
Stomp on a stoop when I hear a funk loop (loop),
Playin' Pied Piper, follow what's true,
Baby just sing about the groove.
Sing it!
Groove is in the heart (na nana na na),
Groove is in the heart (na nana na na),
Groove is in the heart (na nana na na),
Groove is in the heart.
1,2,3, blooooooooo!
Blowin double on those horns.
The groove is in the heart.
Groove is in the heart,
Groove is in the heart,
Groove is in the heart,