Blood Vessels Case Study

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Blood Vessels: 1. What are the layers of a blood vessel wall? (693)The inner most layer is tunica intima, tunic means intimate contact with the blood in lumen. Next, layer is endothelium and that is simple squamous epithelium that lines the lumen of all vessels. Tunica media is smooth muscle cells and loose connective tissue and also the bulkiest layer. Tunica externa is loosely woven collagen fibers that protect and reinforce the vessel and anchor the surroundings. Vasa vasorum is vessels on vessels. 2. Which type of blood vessel: (694) a. Has the thickest layer of smooth muscle? Tunica media is arranged by smooth muscle cells and sheets of elastin. b. Has the thinnest walls? The capillaries has the thinnest walls. c. Has the largest …show more content…
Why is capillary filtration high at the arterial end and low at the venous end? (703)
The fluid leaves the capillaries at the arterial end because of the net filtration is the pressure of the blood at the end is higher at the arterial end than it is at the venous end. 5. Where are baroreceptors and chemoreceptors located that regulate the cardiovascular system? What changes do they respond to?(704)
They are located in the carotid sinus and the aortic arch, and the sense of pressure is changed by responding to the change and build top in the arterial wall. Chemoreceptors are to decrease the pH or oxygen in partial pressure.

Lymphatics: 6. What are some areas of the body that have lymph nodes? (705)Neck, Groin, Armpit, Stomach, Colon, Spleen 7. What are lymphatic capillaries? (706)It is small rounded or bean shaped masses of lymphatic tissue that cover the capsule of connective tissue. The fluid and store special cells that can trap cancer cells or bacteria that are traveling through the body in the lymph fluid. 8. What regions of the body does the right lymphatic duct receive lymph from? Thoracic duct? (706)
It empties in the right thorax and neck, it empties the thoracic duct and drains all lymph from the lower half of the
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