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cardiovascular
| Question | Answer |
|---|---|
| maintenance of blood pressure is determined by: A) haemoglobin B) Peripheral resistance | peripheral resistance |
| Venous return refers to the flow of blood from the periphery back to the heart, at what point does the blood enter the heart A) right atrium B) right ventricle | Right atrium |
| Which chambers of the heart does the SA node cause to contract A) ventricles B) Atria | Atria |
| What is a normal maternal HR A) 60-100 bpm B) 50-110 bpm | 60-100 bpm |
| Does cardiac output A) significantly reduce in pregnancy B) significantly increase during pregnancy C) not change at all | significantly increase |
| diastolic BP decreases during pregnancy - true or false | True |
| the cardiovascular centre in the medulla oblongata receives input from a range of sensory receptors - true or false | True |
| the myocardium receives blood supply from the coronary arteries - true or false | True |
| Purkinje fibres are involved in A) valvular stenosis B) Aleolar expansion C) chordae tendinae D) regulation of the heartbeat | regulation of the heartbeat |
| What is the largest artery in the body called A) Aorta B) Pulmomary artery C) femoral artery | Aorta |
| What are the receptors called that detect changes in blood pressure A) chemoreceptors B) baroreceptors | Baroreceptors |
| External influences can effect blood pressure - True or False | True |
| During each cardiac cycle the left ventricle contracts and a wave of pressure is transmitted through the arterial system causing expansion and recoil of the arteries - True or false | True |
| one complete sequence of contraction and relaxation of the heart is called A) cardiac output ) cardiac cycle | Cardiac cycle |
| Which vessel has valves to prevent back flow A) arteries B) Veins | Veins |
| What are the valves called between the right atria and right ventricle A) bicuspid valve B) tricuspid valve C) mitral valve | tricuspid valve |
| does the pulmonary artery carry A) oxygenated valve B) deoxygenated blood | Deoxygenated blood |
| Stroke volume A) increases B) decreases during pregnancy | Increases |
| In early pregnancy, blood vessels vasodilator under the influence of progesterone, this creates an initial underfill in blood volume, this will A) increase B) decrease blood pressure | Decrease |
| immediately following delivery does cardiac output A) increase B) decrease | increase |
Created by:
LauraH88
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