Multiple Choice Question Companion blood vessels supply _______. ? opposite body regions ? the same body regions
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Step 1: Companion blood vessels are blood vessels that run alongside each other, typically an artery and a vein. Show more…
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LAB ACTIVITY 4: Overview of the Heart and Vessels. Fill in the blanks with the word/term that best completes the statement. 1. The heart is lined by a simple squamous epithelium with a basement membrane and an underlying layer of connective tissue called the ________. The epithelium of the heart is continuous with that of the vessels, where it is called the ________. 2. The first major branch off the aortic arch is the ________, which divides to give rise the ________ and the ________. On the left side of the body, these two vessels arise from the aortic arch independently. 3. The tunica ________ of arteries is thicker that that found in corresponding veins. In both arteries and veins, this layer is composed of ________ muscle tissue. In arteries, the thickness of this layer ________ (increases/decreases) with increased distance from the heart. 4. Larger vessels have their own capillary network, called a ________, that provides nutrients and oxygen to most structures of the vessel wall. Only the innermost portions are close enough to the lumen to obtain nutrients from the blood within the vessel. 5. Several veins draining the abdominal viscera merge to form the ________, which delivers nutrient-rich blood to the liver, where it is "treated" before reaching the rest of the body. 6. The ________ and the ________ are remnants of shunts that allowed the blood to bypass the nonfunctional ________ during fetal development. 7. Which of the following best describes arteries? A. Arteries carry oxygenated blood. B. Arteries carry blood away from the heart. 8. The presence of ________ within the heart ensures the one-way flow of blood. 9. The two circuits of the circulatory system are the ________ and the ________ circuits. The right side of the heart pumps through the ________ circuit; while the left side of the heart pumps blood to the ________ circuit. 10. The term ________ refers to thickening, toughening or other loss of elasticity of the wall of medium or large arteries. The term ________ refers specifically to loss of elasticity of arterial wall caused by the accumulation of cholesterol and/or other lipids within arterial walls.
Adi S.
Cardiovascular System - Blood Vessels two radial/ulnar aorta metarteriole arteries deoxygenated/O2 poor tunica interna (intima) RA axillary diffusion venule veins oxygenated/O2 rich tunica adventitia (externa) 18. These blood vessels always return blood to the heart: 19. These blood vessels always carry blood away from the heart: 20. Pulmonary artery carries ___ blood 21. Systemic circulation transports ___ blood to the body 22. Capillaries unload and pick-up material by a process known as ___ 23. Pre-capillary sphincters are found at the junction of ___ and capillary 24. Outermost layer of arteries and veins 25. This layer is the only layer found in single layered capillaries 26. Largest systemic artery 27. Blood flows from brachial vein to : 28. Blood flows from brachial artery to: 29. Vena cava empties blood into this chamber: 30. Blood flows from capillary beds to ___ 31. Portal systems such a hepatic portal and hypophyseal portal systems have ___ capillary beds Cardiovascular System - Circulation choices may be used once or more than once vasomotor ventricular capillary arterioles, resistance hemodynamics stroke volume radial blood reservoir SV x HR pulse pressure lower 32. Collection of mechanisms that influence blood circulation. 33. Blood Pressure in veins is ___ than capillaries 34. Steepest drop in blood pressure occurs in ___ also known as ___ vessels 35. Volume of blood pumped out of ventricles is called 36. Fick's formula for Cardiac Output (CO) 37. Blood vessels with greatest cross-sectional area and slowest blood flow 38. Veins are known as ___ vessels because at any given time 60% blood is found here 39. Systolic BP coincides with ___ systole 40. Systolic pressure minus Diastolic pressure is known as: ___ 41. Pulse pressure point in the wrist 42. ___ mechanisms regulate changes in arteriole diameter
Capillary Alninsl capillaries in the body are the main site of nutrient exchange. Waste exchange is also facilitated through the capillaries. Pre-capillary sphincters contract to increase capillary blood flow. The walls of capillaries can be thin or thick. Needle-like structures called capillaries are found throughout the body. Lymphatic vessels are also present in the body. Blood is red in color. In the condition known as silus inversus, the heart and other organs are reversed in their orientation. The apex of the heart would be located in the middle right part of the chest. The chambers of the heart are called ventricles and atria. Different types of cell junctions are found in connective tissue, including intercalated disks, gap junctions, and desmosomes. The right ventricle pumps blood to the pulmonary artery, while the left ventricle pumps blood to the aorta. The superior and inferior vena cava are major veins in the body. The common carotid artery is also an important blood vessel. During open heart surgery, the first structure that would be cut into is the pericardium. The right atrium is the first chamber of the heart that the dye injected into the vein in the right arm would reach. If the semilunar valve was blocked, blood would accumulate in the left ventricle.
Courtney T.
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