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Biology Unit 1

Heart, Viens, Artries, Blood

QuestionAnswer
How can you tell side of the heart is the ventral surface? Because the artries and veins are come up through the top and the ...
How many chambers does a mammalian heart have? Name an example. 4 chambers, Bird.
Blood from the lungs enters the heart through the? a)Right Atrium b)Right ventricle c)Left atrium d) Left Ventricle c
The protective sac in which the heart is enclosed is the a) septum b)pericardium c)Lymphatics d) Clavicle b
Carbon dioxide and waste products diffuse form the tissures into the blood through the a) capillaries b)arterioles c)venules d)Lymph Vessels a
the inner layer of a vein is made of? Epithelial Tissue
The heart rate is increased by? The sympathetic nervous system
Unlike all other artries, the pulmonary artery... Carries oxygen-poor blood
Valves are present in? Lymph vessels, veins and heart
Blood is carried to the tissues of the heart by Coronary Artery
The fluid that leaks in the tissues from the blood is lymph
55% of your blood is made of Plasma
Blood Pressure is regulated by special sensory neurons and by the kindeys
What does the superior Vena Cava do? Largest vein in the body, take blood to the heart
Where does the blood flow from when it reaches the Right atrium Superior Vena Cava
Muscle tissuse that contracts without nerve excitation Mygentic
Define Mygentic Muscle tissues that contracts without nerve excitation
Large pumping chamber of the heart is ? Ventricles
Arteries do what? Carry blood away from the heart and to the rest of the body
Accumlation of fat deposits in the artries Atheroscelosis
What is Artheroscelosis? Accumlation for fat and plaque in the artries
Narrowing of Blood vessels vasoconstriction
what is Vasoconstriction? Narrowing of blood vessels
Blood in the pulmonary artery deoxygenatic
Disorder caused by a faulty heart value Mermer
Thin walled chamber of the heart is? atrium
System that carries blood to the lungs pulmonary system
bulge in the wall of the heart is anuriusm
What is an anuriusm A bulge in the wall of the heart
Blood vessels in which diffusion occurs Capillaries
Widening of the blood vessels vasodilation
What is Vasodilation? Widening of the blood vessels
What arteries supply the heart Corenary arteries
Created by: christib
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