From which chamber of the heart does blood leave to go to the lungs? II. When oxygen-rich blood from the lungs is pumped to the rest of the body so thecells can use the oxygen – oxygen-poor blood is then returned to the heart is___. III. Red blood cells transport ______.?
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- IV. The Formation of Red Blood Cells The body must constantly produce new red blood cells to maintain homeostasis. Demonstrate your understanding of the life cycle of red blood cells by placing the following events in the proper sequence. A. An immature form of an erythrocyte, called a reticulocyte, is released into the circulation. B. EPO stimulates stem cells in red bone marrow to begin creating new erythrocytes. _C. After one to two days, the reticulocyte becomes a mature erythrocyte. _D. The kidneys detect the declining levels of oxygen and respond by secreting a hormone called erythropoietin (EPO). E. As the number of RBCS increases, oxygen levels rise. Less EPO is produced, and RBC production declines. F. As damaged RBCS are removed from circulation, oxygen levels fall.1. Trace the pathway a red blood cell would follow from the small intestines to the thigh. femoral artery external iliac artery common iliac artery aorta left ventricle left artium pulmonary veins lungs pulmonary arteries pulmonary trunk right ventricle right atrium inferior vena cava superior mesenteric vain hepatic portal vein hepatic sinuses hepatic vein1. Fill in the blanks about blood vessels Part A: _________ ________ regulate blood flow into the capillary bed and respond to local cehmical conditions. If the tissue is metabolically active, they would _________ in diameter to allow flow into the tissue. If the tissue is not metabolically active, they would _______ in diameter and blood would be _________ through the capillary bed. What are the changes in the tissues and what is a byproduct when there is active metabolism? Part B: On the venous side of the capillary, fluids genetally flow ____ (in or out) of the capillaries because the _______ pressure in the capillaries is higher than the hydrostatic pressure on the venous end. Part C: Vasoconstriction and vasodilation includes the narrowing or widening of the ______ layer in the vessel. Vasoconstriction results primarily from activation of the ________ adrenergic receptors. Part D: Activating the sympathetic system would ______ (increase/decrease) heart rate, ______…
- 23. What happens when a clot occurred in an undamaged blood vessel? a. You would bleed to death. b. A scab will form on the skin surface. c. Platelets stick to the edges of the cut and to one another, forming a plug. d. The flow of blood to tissues beyond the clot may be cut off. 24. Which is the most common type of blood cell in a healthy human? a. erythrocyte b. monocyte c. lymphocyte d. Thrombocyte e. basophil 25. Which of the following is a function of the vertebrate circulatory system? a. temperature regulation b. transport metabolic wastes c. provides immune defense d. transport oxygen and carbon dioxide e. all of the abovefunctional injury to endothelial cells would most likely result in which of the following? a. hemorrhage per rhexis b. thrombosis c. hematoma d. hydrothoraxHaemoglobin is an importantcomponent of _______.A. White blood cellsB. Red blood cellsC. PlasmaD. All options are correct
- 1. The tunica media of blood vessels contain the following structures except _____.A. endothelial cell B. smooth muscle C. elastic fibers D. proteoglycans2. The following describes the tunics of a vein except letter _____.A. tunica media is thinner than arteriesB. tunica adventitia is the thickestC. tunica interna is with fine collagen and elastic fibersD. tunica media is the thickest3. Which of the following is the prominent feature of elastic arteries?A. thick media B. external elastic laminaC. smooth muscle fibers D. thin endothelial layer 4. Which of the following describes an artery?A. round and larger lumen B. without valveC. lumen is large when blood is flowing D. with valve5. These permit easier movement of cells between tissues and blood.A. sinusoid capillaries B. continuous capillariesC. fenestrated capillaries D. metarteriolesThe 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 production23. What happens when a clot occurred in an undamaged blood vessel? a. You would bleed to death. b. A scab will form on the skin surface. c. Platelets stick to the edges of the cut and to one another, forming a plug. d. The flow of blood to tissues beyond the clot may be cut off. 24. Which is the most common type of bllood cell in a healthy human? a. erythrocyte b. monocyte c. lymphocyte d. Thrombocyte e. basophil 25. Which of the following is a function of the vertebrate circulatory system? a. temperature regulation b. transport metabolic wastes c. provides immune defense d. transport oxygen and carbon dioxide e. all of the above
- Which of the following is the correct sequence of events in the circulation of blood? a. Heart arteries arterioles capillaries venules lymph heart b. Heart arteries arterioles capillaries veins venules heart c. Heart arteries arterioles capillaries venules veins heart |d. Heart arterioles arteries capillaries venules veins heart#3. The word root erythr/o means.?84)Formation of erythrocytes occurs in the _______. Group of answer choices Red bone marrow Yellow bone marrow Plasma White bone marrow 85) The circulatory system has only 1 circuit that circulates blood. Group of answer choices False True 86) In the homeostatic regulation of blood oxygen levels, the effector is the ________. Group of answer choices Kidney CO2 Red Bone Marrow Blood Oxygen Levels Lungs 87) For each heart chamber the period of contraction is called ___________________. Group of answer choices Diastole Systole
