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- Circulatory system (8794 bytes)
1: ...he [[organ (anatomy)|organ system]] which circulates [[blood]] around the [[body]] of most [[animal]]s...
8: #Collection of metabolic wastes and delivery to the excretory organs, e.g. [[kidn...
12: ==Types of circulatory systems==
15: ...s drawn back into the [[heart]] as the heart relaxes.
18: ...of blood vessels consisting of arteries, capillaries and veins. - Artery (6875 bytes)
1: ...y ( by contrast, [[vein]]s are the return path tubes).
3: ...ls and elastic tissue. The outermost layer (furthest from the flow of blood) is known as the ''[[tuni...
5: ...nd blood volume variation within the artery produces the pulse which is palpable in any artery, reflec...
7: ...e]]. Similarly, the [[pulmonary]] arterial pressures, e.g 25/6 mmHg, are generated by the contractions...
9: ...1.8 lbf/in², above surrounding atmospheric pressure (about 760 mmHg or 14.7 lbf/in² at sea l... - Heart (10132 bytes)
3: ...n]] that [[pump]]s [[blood]] through the [[blood vessel]]s by repeated, rhythmic contractions. The ter...
7: ...singular: ''atrium'') and the two lower ''ventricles''.
9: ...ional flow of blood from the atria to the ventricles.
11: ...ventricle pumps blood throughout the body's arteries and veins; the right ventricle pumps blood to the...
15: ...m the left atrium this newly oxygenated blood passes through the [[mitral valve]] to enter the left ve... - Reptile (14659 bytes)
3: ...Taxobox_begin | color = light blue | name = Reptiles}}
4: ...xobox_image | image = [[Image:Turtle_4.jpg|280px|Testudo hermanni boettgeri]] | caption = Eastern [[He...
15: Suborder [[Snake|Serpentes]] - Snakes<br/>
16: [[Testudines]] - Turtles<br/>
23: ... by an amniotic [[membrane]]). Today they are represented by four orders: - Realdo Colombo (996 bytes)
1: ...59]]). He was a pupil of [[Vesalius]] and his successor.
7: * showed that the [[lens (vision)|lens]] lies to the front of the [[eye]]ball, not in the centr...
8: * showed that [[artery|arteries]] expand with each [[heart]]beat
9: ...wed that the [[pulmonary valve]] of the heart closes during [[diastole]], preventing reflux
12: His discoveries paved the way for [[William Harvey]]'s discovery ...
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