In the fetus, the blood with the highest concentration of oxyhemoglobin will be found in the: Select one: a. umbilical artery. b. umbilical vein. c. pulmonary vein. d. aorta.
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- Which of these statements is correct?a. Fetal circulation, like adult circulation, takes blood equally to apulmonary circuit and a systemic circuit.b. Fetal circulation shunts blood away from the lungs but makesfull use of the systemic circuit.c. Fetal circulation includes an exchange of substances betweenfetal blood and maternal blood at the placenta.d. Unlike adult circulation, fetal blood always carries oxygen-richblood and therefore has no need for the pulmonary circuit.e. Both b and c are correct.The oxygen blood capacity in fetus at the end of pregnancy before birth increases first of all due to the fact that in erythrocytes there are more: A. methemoglobin B. carbhemoglobin C. hemoglobin A D. hemoglobin F E. hemoglobin SA newborn baby at 34 weeks gestation dies of acute umbilical cord strangulation. At autopsy, examination of hepatic tissue is most likely to show abundant production of which of the following cell types? a. Eosinophils b. Erythrocytes c. Lymphocytes d. Neutrophils e. Platelets
- Erythropoietin is produced by a. the kidneys. b. the liver. c. the lungs. d. the bone marrow.Concerning the physical characteristics of the blood, which of these statements is not true? a. The blood is thicker than water b. The blood volume is higher in male than female c. The blood has slightly acidic pH d. Blood color is bright red when oxygenated The formation of a blood clot is known as which of the following? a. Leucopoiesis b. Chemotaxis c. Coagulation d. Erythropoiesis The parotid gland is located __________ and functions to __________ a. behind the stomach; produce and secrete digestive enzymes b. in the wall of the small intestine; produce and secrete mucus c. on the side of the mouth; produce and secrete saliva d. under the mandible; produce and secrete saliva Hematocrit is a measure of: a. the amount of hemoglobin in a given volume of blood b. the percentage of erythrocytes divided by the percentage of leukocytes c. the percentage of total blood volume composed of leukocytes d. the percentage of total blood…In the adult, most erythropoietin (EPO) is secreted from cells in the: A. liver B. kidneys C. red bone marrow
- The victim sustained a single stab wound to the left chest in the mid axillary line, just below the level of the nipple. The pointed weapon passes through the left lung and lodges to the heart. He was transported to our emergency department of CVMC. He was noted to be bleeding but eventually stopped. Though the bleeding stopped, he was observed to have low blood pressure and an increase heart rate. Upon blood transfusion his blood pressure increases and his heart rate lowered. a. Suggest an explanation for the following observation in his blood pressure and heart rate during bleeding and after blood transfusion.In the fetal circulation, once blood enters the right atrium, most of the blood enters the left atrium by passing through the A. Ductus arteriosus B. Ductus venosus C. Pulmonary arteries D. Foramen ovaleWhich of the following statements about erythropoietinis true?a. It facilitates the proliferation and differentiationof the erythrocyte lineage.b. It is a hormone produced by the thyroid gland.
- Which of the following statements is (are) true about polycythemia?a. Polycythemia increases blood pressure.b. Polycythemia can result from cancer, hypoxemia, or dehydration.c. Polycythemia is diagnosed from a white blood cell differential test.d. Polycythemia is often a problem for smokers.e. Polycythemia can occur when the body has chronic exposure to carbon dioxideThe term "hematopoiesis" refers to: Select one: a. the mechanisms that prevent blood loss O b. the process of blood cell formation O c. the rupture of red blood cells O d. a disease in which there is insufficient blood cell productionAn MRI of a healthy 40 -year-old woman will most likely show hematopoietic activity at which of the following sites. A. liver B, lymph nodes C. Proximal tibia D. Sacrum E. splee