(1)All vertebrates have what type of circulatory system? Closed circulatory system
(2)How does the circulatory system maintain homeostasis? Through water and electrolyte transport, fluid volume control, and regulation of ph and of body temp.
(3)Name 4 functions of the circulatory system. Heart- central organ of circulatory system, Arteries- which carry blood from the heart, Veins – which return blood to the heart, Capillaries- which connect arteries and veins.
(4)What are blood vessels that carry blood away from the heart called? Arteries
(5)What are blood vessels that carry blood to the heart called? Veins
(6)What is the sac that surrounds the heart called? pericardium
(7)What is the muscular portion of the heart called? Myocardium
(8)What is the lining of the myocardium called? Endocardium
(9)What is the name of the upper cavities of the heart? The lower cavities? Upper cavities- atria(singular atrium) lower cavities- ventricles
(10)What veins carry blood to the left atrium? The right atrium? The superior vena cava and inferior vena cava carry blood to the right atrium. The pulmonary veins carry’s blood to the left atrium
(11)What arteries carry blood away from the left ventricle? The right ventricle? The pulmonary artery on the right side. The aorta on the left side
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