BIOS 255 Midterm/Finals 2024 Questions & Answers |
100% Correct | Verified
Which of the typical blood vessels has a thin tunica tunica media dominated by collagen fibers? -
veins
Capillaries surrounding the choroid plexus is of which type? - Fenestrated capillaries
Blood flow through a capilla...
Which of the typical blood vessels has a thin tunica tunica media dominated by collagen fibers? -
✔✔veins
Capillaries surrounding the choroid plexus is of which type? - ✔✔Fenestrated capillaries
Blood flow through a capillary bed is passed by what structure? - ✔✔Atriovenous Anastomosis
Blood flows toward the heart in the veins by? - ✔✔
-With the aid of contractions of the adjacent skeletal muscles.
-Valves in the veins prevent the backflow of the blood
-Pressure at the venules is higher than the pressure at the venae cava
As the blood flows from venules toward the heart, what increases? - ✔✔Resistance
Blood volume is decreased by what two hormones? - ✔✔ANP & BNP
Which of the following is not a vasoconstrictor?
-Prostagladin
-Thromboxones
-Nitric Oxide - ✔✔Nitric Oxide
Vasodilation is achieved by adrenergic receptors. True or False - ✔✔False
Baroreceptors are found in what sinus? - ✔✔Carotid Sinuses
, Which of the typical blood vessels has thick tunica media dominated by smooth muscle cells and elastic
fibers? - ✔✔Arteries
Femoral artery is a type of what artery? - ✔✔Muscular Artery
Capillaries that have a complete lining are called what? - ✔✔Continuous Capillaries
Blood flow through a capillary is regulated by what? - ✔✔Precapillary Sphincter
As the blood flows from the aorta towards the cappilaries what increases? - ✔✔Resistance
Pressure gradient of water causes osmosis. True or False - ✔✔False
Which of the following is NOT a vasodilator? - ✔✔Prostagladin
Venous reserve is used during extreme blood loss. True or False - ✔✔True
Chemoreceptors are found in what? - ✔✔Aortic Bodies
Venous valves allow blood to flow in BOTH directs. True or False. - ✔✔False
The normal heart sounds are caused by what? - ✔✔The closure of the heart valves
The left ventricular wall of the heart is much thicker than the right wall in order to do what? - ✔✔Pump
blood against a greater pressure
Ventricular depolarization corresponds to what complex? - ✔✔QRS Complex
Blood within the pulmonary veins returns to the heart in what location? - ✔✔Left Atrium
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