Match the circuit to its job in the human circulatory system (match A & B to a number below) A.pulmonary B.systemic

The ramp potential of pacemaker cells is caused by the opening of the: The ramp potential of pacemaker cells is caused by the opening of the: A. HCN channels B. voltage-gated sodium channels C. voltage-gated calcium channels D. voltage-gated potassium channels

When the blood  temperature increased then the amount of oxyhemoglobin ---------------- and oxygen delivery to the tissue cells ----------------------. a. Decrease, decrease. b. Decrease, increase. c. Increase, Increase. d. Decrease, Increase. e. Does not change, Does not change.

Mark ALL the statements about capillaries that are TRUE.   Select one or more: a. Towards the venule end of the capillary, the blood pressure is higher than the osmotic pressure. b. Fluid will leave the capillaries when the osmotic pressure exceeds the blood pressure. c. Capillaries are only one cell layer thick so the blood moves through them at low velocity. d. Capillaries have a total cross-sectional area that is greater than any other class of vessels. e. The blood pressure will decrease as the blood flows through the capillaries from the arterioles.

A. Blood doping and EPO use are illegal acts banned from sports events. What are the specific health risks of such behavior – explain briefly based on what you learned about blood components in the body.  B: A heart murmur was detected in a teenage girl who sought medical care due to feelings of chronic fatigue. Her radial pulse was rapid and weak. An echocardiogram and coronary angiography revealed that she had a ventricular septal defect and mitral stenosis (roughening or constriction of the walls surrounding the mitral valve). Predict her ECG pattern and explain her symptoms. Would you be concerned if you find that her plasma cholesterol concentration is also high? Why?    Please answer these 2 together - they are together

Heart failure occurs when   a. the cardiac output is 15 liters per minute when you are watching television   b. the cardiac output is 5 liters per minute when you are running as fast as  you can on the treadmill.    c. the cardiac outout does not change based on the energy expenditure   d. all of the above

https://www.youtube.com/watch?v=t0IngUYN2OA https://www.youtube.com/watch?v=pPxnIh_WTb8 Part1 1) How would the BP of an anxious patient visiting a doctor be different than if the patient is calm? 2) In atherosclerosis, plaque builds up inside the arteries. How would this affect BP? Is this an example of hypertension or hypotension? Part 2: The circulatory system has 5 functions. · Highlight the statements below that are only functions of the circulatory system. It carries cells that help to fight diseases. It gives structure and support to the body. It carries waste products to the urinary system. It carries carbon dioxide from cells to the lungs. It maintains body posture. It carries nutrients from the digestive system to other cells. It carries oxygen from the lungs to other cells. · The list gives some structures in the blood and circulatory system. Heart, artery, red blood cell, ventricle, capillary, plasma, vein, white blood…

Doctors strongly recommend that travelers on long airline flights stretch their legs or stand up and walk down the aisle periodically in order to prevent development of a clot in their lower legs. This is a condition known as Deep Vein Thrombosis (DVT). Explain why this condition is more likely to occur in someone who is sitting still for long periods of time such as on an airplane.

Which of the following is/are true concerning the opening and closing of the cardiac valves? A. valves operate according to the pressures on either side of the valve B. valve operation is constantly being controlled by the medulla oblongata C. valve operation is determined directly by the cardiac action potential (electrical currents control the opening and closing of the valves.) D. valve operation is directly controlled by the papillary muscles within the ventricular wall. E. None of the above is correct.

If somebody was doping on EPO and you analyzed a sample of their blood you would likely find: A. higher than normal percentage of plasma B. A higher than normal percentage of circulating reticulocytes C. lower than normal amount of blood viscosity. D. increased chance of anemia