1. The blood from an 8-year-old boy was analyzed by flow cytometry. The exact number of B cells was counted. Which of the following cell surface markers was likely used to identify the B cells in this blood sample? CD8 CD3 CD19 CD4 2. Ptylin is secreted by Salivary gland Gastric gland Pancreatic gland Duodenal gland 3. Major initiating response for peristalsis is Hormonal none Local stretching of gut Neural 4. Which of the following is most likely to be decreased during resting conditions for a patient that has been severely anemic (Hb = 6.0 g/dL) for several months? Mixed venous PO2 Arterial PO2 Cardiac output 2,3-diphosphoglycerate 5. The medical record of a patient indicates a systolic murmur due to increase in afterload, producing a pressure gradient between the ventricle and aorta during ejection. Which of the following best describes the condition? Aortic insufficiency Aortic stenosis Mitral stenosis Mitral insufficiency 6. In anemia, the concentration of 2,3-DPG is Not changed A or B Decreased Increased 7. Carbon dioxide is transported in blood by a variety of mechanisms.Which of the following is quantitatively the most important method for transporting CO2? As CO2 in gas bubbles As carbaminohemoglobin As CO2 in physical solution As sodium bicarbonate in serum 8. physiolgical response to smoking are all except increased heart rate and increased catecholemine release decreased carboxyhemoglobin increased hematocrit decreased HDL 9. in a seriously ill patient addition of amino acids in diet results in a positive nitrogen balance.the mechanism for this is enhanced rate of gluconegenesis increased proportion of amino acids from diet increased growth hormone secretion increased secretion of insulin 10. baby can breathe even while suckling because of short soft palate higher position of larynx small pharynx wide and short tongue 11. Which of the following indices would be expected to be decreased in a kidney donor after full recovery from the removal of the kidney? Plasma creatinine concentration Creatinine clearance Creatinine production Daily excretion of sodium 12. All of the following affect resting ventilation except J receptors Stretch receptors PCO2 Oxygen 13. An increase in which of the following best explains the mechanism by which the cardiac output increases in severe anemia? Splanchnic blood flow Blood viscosity Arteriolar diameter Peripheral vascular resistance 14. Iron absorption takes place in which part of intestine Ileum jejunum Colon Duodenum 15. Ribosomes are attached to Smooth ER Nucleus RER Mitochondria 16. A 60-year-old man presents with signs of hypoxemia due to hypoventilation. Which of the following could be the cause of hypoxemia in this patient? Chronic obstructive pulmonary disease (COPD) Right-to-left cardiac shunt Fibrosis Anemia 17. Constriction of which of the following types of blood vessels is most important for minimizing the decrease in mean systemic filling pressure caused by loss of 1 liter of blood? Capillaries Venules and veins Aorta and large arteries Arterioles 18. Goblet cells secrete HCL pepsin Serotonin Mucus 19. why fetal cells continue to divide but terminally differentiated adult cells do not divide absence of CD kinase proteinase is absent in fetus phosphatase is absent in fetal cells there are many cyclin inhibitors which prevent cell from entering into S phase in adults 20. Which of the following secretions has a very high pH Bile in gall bladder Saliva Gastric juice pancreatic juice Loading … Question 1 of 20
