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| Question | Answer |
| venous return | return of blood to the heart through the veins |
| List 3 facts about venous return | valves - stop back flow venous pump- muscles squeeze vessels closed circuit so arterial blood pushes the venous blood |
| homeostasis | balance of the body - keeping a constant internal environment. Eg after exercise heart rate returns to resing rate |
| List 3 places where chemoreceptors are found | carotid artery medulla aorta |
| What is the function of the hypothalamus? | responds to feedback from the rest of the body - then makes adjustments |
| Function of white blood cells | fight infection |
| function of red blood cells | To carry oxygen and carbon-dioxide around the body |
| blood vessel carrying blood from the right ventricle to the lungs | pulmonary artery |
| blood vessel carrying blood from the lungs to the left atrium of the heart | pulmonary vein |
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