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Do arteries that branch away from the heart get bigger or smaller?
smaller
Where does the venae cavae lead in to?
starts at brain ends at heart you have the upper which is the bigger and the lower which is the smaller
Can humans donate organs to animals?
Yes, Pigs can donate heart valves and other organs but other animals cant
Is a bleeding heart pigeon a amphibian?
No. Pigeons are birds.
Why is the adult human heart different from a fetal heart?
Males tend to be bigger than females, and have have a larger proportion of muscle mass. As a consequence, males need bigger hearts to supply the bigger amount of muscle.
Why do animals have shorter lives than people?
animals have shorter lives because there heart is smaller and there body parts are different then ours.
Is there a link between the size of an animal and its heart rate?
Not exactly. It is not associated with the size of the animals phisique, but associated with the size of the animals organs. For example and elephant is a mammal that is the largest on earth, its heart is although not much bigger than the humans species. A lion however, will have a very big heart to enable it to run and be active unlike the elephant there its heart rate is very good (slow) when resting and very high when running but slows down quickly after excersice.
Is the human heart bigger than the human brain?
if you are talking diametar metres the heart will be bigger but it really depends on what heart your talking about for example a mouses heart is smaller than a humans lung but a elephants heart is bigger than a humans lung. ants have very small lungs so if you put a human lung in a mouse it would most probaly die and vice versa as the mouse heart would never be a ble to keep a human alive. i think both the human heart and the human lung are ingenious things that should be eaten only on im a celebrity get me out of here. by chris lane
Does a mouse's heart beat slower than an elephant's heart?
Yes. There is a direct correlation between an animals average body size and the speed of its heartbeat with smaller animals having faster heartbeats than larger animals.
Why do smaller animals have a faster heart beat that larger animals?
Because they weigh less, they're faster, and even though they are little they can take big leaps.
Is the heart bigger if the person is bigger?
No, your heart remains the same size, it just works harder if you are a bigger person, which is why bigger poeple are more at risk from heart problems.
How arteries and vein differ?
Arteries send blood away from the heart while veins send blood to the heart.
