Essay about Unit Question 1

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02/08/2015
Anatomy and Physiology II
Unit Question I

1. Which of the following is the major element of blood?
a) Plasma
b) Erythrocytes
c) Leukocytes
d) Platelets
e) Formed elements
2. Which two great vessels bring deoxygenated blood back to the heart?
a) The superior and inferior vena cava
b) The aorta and the superior venae cave
c) The pulmonary veins and the aorta
d) The inferior venae cave and the coronary veins
e) The pulmonary and aorta trunk
3. Which of the following is the smallest lymphoid organs?
a) The thymus
b) The spleen
c) The lymph nodes
d) The thalamus
e) The liver
4. What is the primary focus of the entire cardiovascular system?
a) Neural regulation
b) To maintain cardiac output
c) Hormonal regulation
d) Capillary exchange
e) All are correct
5. When there is an injury sometimes the affected site looks inflamed. What is an explanation for this?
a) Most likely basophils are releasing Histaine to dilate blood vessels in an effort to increase the flow of Leukocytes to the infected site
b) There is an accumulation of platelets in that area
c) Eosinophils are releasing Cytotoxin enzymes to increase inflammation
d) The person is suffering from agglutination
e) Neutrophils are releasing chemicals to engulf pathogens, which cause inflammation

6. How is the relation between friction, vessel length and resistant?
a) The longer the vessel the smaller the surface contact area and the resistant
b) The shorter the vessel the greater the surface contact area and the smaller the resistant
c) The loger the vessel, the greater the surface contact area and the greater the resistant
d) The longer the vessel, The greater the surface contact area and the smaller the resistant
e) There is no relation

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