Question

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Name: 5. Blood Vessels 1. The walls of the large blood vessels are composed ofthree layers: 2, The of arteries and veins is under the control of the autonomic nervous system and is involved in both vasoconstriction and of blood vessels. 3. Arteries carry blood from the to the All arteries carry oxygenated blood except the trunk and its branches. All veins 4. Veins return blood from the to the carry deoxygenated blood except the 5. Which types of capillaries would you find in each of these organs? Liver: Skeletal muscle: Choroid plexus: Kidney: 6. What is the function of capillaries? 7. When blood makes a circuit through a portal system, it travels through capillary beds. 8. In a fetus, when blood passes through the ductus venosus, it bypasses the which is not yet 9. Two structures associated with the heart of a fetus that allow blood to bypass the pulmonary circulation are 10. Under normal conditions, blood pressure in an artery oscillates from a low of mm of mm of Hg called the Hg called the pressure to a maximum of pressure.

Answer 1

Answer-1 The walls of the large blood vessels composed of three layers that are Tunica Intima, Tunica Media and Tunica Adventitia.

Answer-2 The vascular nerves of arteries and veins is under the control of the autonomic nervous system and is involved in both vasoconstriction and vasodilation of blood vessels.

Answer-3  Arteries carry blood from heart the to the other body parts All arteries carry oxygenated blood except the pulmonary trunk and its branches.

Answer-4  Veins return blood from other body parts the heart All veins carry deoxygenated blood except the pulmonary vein.

Answer-5

Liver has sinusoids

Skeletal muscle has continuous capillaries

choroid plexus has fenestrated cappilaries

Kidneys have has fenestrated cappilaries

Answer-6 The capillaries are the short blood vessels which help in transportation of oxygen to and carbon dioxide from the tissue.

Answer-7 When blood makes a circuit through a portal system, it travels through digestive organs capillary beds.

Answer-8  In a fetus, when blood passes through the ductus venosus, it bypasses the fetal liver which is not yet formed.

Answer-9  Two structures associated with the heart of a fetus that allow blood to bypass the pulmonary circulation are Ductus arteriosus and Ductus venosus.

Answer-10  Under normal conditions, blood pressure in an artery oscillates from a low 80 mm of Hg called the diastolic pressure to a maximum of pressure 120 mm of Hg called the systolic pressure.