Bio 181 ASU Exam 3 Questions and Answers 100% Verified

Bio 181 ASU Exam 3 Questions and Answers 100% Verified Where in the circulatory system are nutrients and oxygen able to leave blood vessels? - answerIn the arteries What is the function of the kidney in the body? - answerThe function of the kidney is to remove waste products in the body and excess fluid in the body Describe the pathway of oxygenated blood and deoxygenated through the circulatory system - answer- Oxygenated blood goes through the pulmonary veins and this pushes it through the left atrium it then travels to the left ventricle that sends the blood through the aorta to the body and the capillary beds. - Deoxygenated blood goes through the right atrium and then to the right ventricle, it then sends the blood through the pulmonary artery and into the lungs. Describe systole and diastole - what are they and when does each occur? - answer-Systole- is when the heart muscle contracts and pushes blood to the blood vessels in the circulatory system. -Diastole- is when the heart muscle is relaxed and the chambers then fill with blood How does elasticity of arteries and veins contribute to circulation? - answerIt contributes to circulation by keeping a consistent blood pressure Electrical activity is important for coordinating muscular contractions in the heart. What are the roles of the atrioventricular and sinoatrial nodes? - answer-Atrioventricular nodes generates action potentials that are conducted to the ventricles in a bundle of fibers -Sinoatrial nodes are the primary pacemaker cells Why does blood flow slowly in the capillaries? - answerThe total cross-sectional area of the capillary beds are much greater than that of any of the other vessel Distinguish between the resting potential and action potential of a neuron. - answer-Action potential- Are voltage gated sodium channels