Erythropoietin (EPO) is produced in response to ____________________ by this organ/cells________________:

Normal sinus rhythm is over 100 bpm at resting condition.

Most of the cardiac veins empty into the coronary sinus:

Which chemical is involved in the breakdown of a clot (fibrinolysis)?  

Which of the following will reduce venous return of blood to the heart?  

Heterozygous individuals for sickle cell disease are resistant to malaria.

Which of the events below does not occur when the semilunar valves are open?  

Describe the systemic circulation in the context of the cardiac cycle. Describe the flow through the heart during systole and diastole. Indicate the chambers, valves and vessels as you follow the path of an erythrocyte through the systemic circulation from the start to the end. Start your description with the left atrium using the following rubric:   Rubric: Name the blood vessels that deliver blood to the left atrium and take blood away from the left side of the heart. Name the type of the blood in those vessels in respect to the oxygen levels (5 pts) Name the path that the blood follows after it is delivered to the left atrium (5 pts). What is the next chamber that receives blood? Describe the sequence of the contractility of the respective cardiac chambers so that the blood can be propelled out of the heart toward the tissues ( 5 pts), Name all the valves that the blood has to go through in order to enter and exit from the left ventricle  (5 points), Where is the site of gas exchange for the systemic circulation? (2 pts) How is the blood returned to the heart? Name the vessels and the cardiac chamber. (3 pts)   Points will be subtracted for incomplete/vague, missing, or wrong answers as follows: 25, 50 or 75 % point reduction for incomplete/vague answers (depending on the quality of the answer). 0 pts for missing or wrong answers

Which of the following is an anticoagulant?  

36 α-particles are directed at a metal foil. Most of the particles pass through the foil with little change in direction. A small proportion of the particles are scattered back through large angles.   What does this evidence suggest about the structure of an atom?   (1)   A     It consists of a charged centre much smaller than the size of the atom and with little of the mass of the atom. B     It consists of a negative charge the size of the atom containing small positive charges scattered through it. C     It consists of a charged centre much smaller than the size of the atom but with most of the mass of the atom. D     It consists of a positive charge the size of the atom containing small negative charges scattered through it.