Which layer of the blood vessels is comprised of smooth muscle and plays a role in vasoconstriction and vasodilation? Select one: O a. Tunica intima O b. Tunica media O c. Tunica externa O d. Tunica adventitia

Q: Describe the differences noticed in the structures of the arterial and venous walls. Mention each of…

A: Blood vessels are the components of the circulatory system, which are essential for transporting…

Q: Which of the following best describes an artery? Select one: a. thin-walled, and supplied with…

A: Ans- Arteries are the important part of cardiovascular system in our body that carries the…

Q: Contraction of the smooth muscle layers of the arterioles a. increases the frictional resistance…

A: The different types of blood vessels in the human body are arteries, arterioles, capillaries,…

Q: The ascending aorta and pulmonary trunk develop from the embryonic:- a. bulbus cordis only. b.…

A: Ascending aorta refers to the part of the aorta that begins at the upper region of the left…

Q: В A (A)Capillaries (B) LAYERS 42. ARTERIOLES 48. 43. TUNICA INTIMA METAARTERIOLES 44. ARTERIAL 49. .…

A: Hi, Thanks For Your Question.  Answer :  42.  A Is Arterioles 43.B Is Meta ARTERIOLES 44. C Is…

Q: Which of these organs is able to tolerate the greatest reduction in blood flow? a. Brain b. Heart…

A: Blood flows in the body consists of the red blood cells, which contain haemoglobin. The haemoglobin…

Q: Which of these statements about arteriovenous shunts in the skin is true?a. They divert blood to…

A: Cardiovascular system plays a vital role in the transport/supply of nutrients, gases and removal of…

Q: Name the components of each blood vessel tunic. More than one term may apply to each description,…

A: There are three tunics composed together to make arteries, arterioles, veins and venules. The outer…

Q: Which of these is a vasoconstrictor? a. nitric oxide b. natriuretic hormone c. bradykinin d.…

A: Vasoconstriction is defined as the contraction or narrowing of the blood vessels usually large…

Q: Which of the following is True?a. Arteriole diameter is controlled by nerves, hormones,and chemicals…

A: The circulatory system is responsible for the transport of nutrients, electrolytes, wastes gases,…

Q: In a person at rest, the largest volume of blood is in______. a. arteries c. veins b. capillaries d.…

A: The blood is circulated throughout the body parts by the circulatory system whose main parts include…

Q: Contrast the compliances and blood volumes of the veins and arteries.

A: Arteries are blood vessels that manage the blood flow from heart to body Where as Veins are blood…

Q: To get from the right atrium to the right ventricle, blood flows througha. the pulmonary valve.b.…

A: To get from the right atrium to the right ventricle, blood flows through the right AV valve or…

Q: When it comes to arteries and veins, do veins have? a) a tunica media that is missing in arteries…

A: Since you have posted a question with multiple sub-parts, we will solve the foremost three for you.…

Q: Plasma solutes enter the tissue fluid most neasily froma. continuous capillaries.b. fenestrated…

A: Answer is b.) fenestrated capillaries.

Q: Which of the following statements is false?a. Only arteries carry oxygenated blood.b. Both arteries…

A: Components of closed circulatory system It consists of heart to pump the blood, blood vessels like’s…

Q: A circulatory pathway in which the blood flows through two capillary beds in series - before it…

A: The circulatory pathways direct proper flow of blood through heart, lungs, and various associated…

Q: Which type of blood vessel has one-way valves in its lumen? Select one: a. elastic arteries b.…

A: BASIC INFORMATION  BLOOD VESSELS  These are components of Circulatory system. They have the…

Q: The diameter of veins is typically larger than that of arteries,becausea. veins must carry blood at…

A: Open and Closed circulatory systems are the two types of circulatory systems in our body. This…

Q: Standing for a prolonged period of time can cause ... a. Decline in venous return  b. A drop in…

A: Venous return is the flow of blood from peripheral regions to back to right atrium . Factors which…

Q: Which blood vessels have the smallest diameter? A. Capillaries B. Arterioles C. Venules D. Lymphatic

A: The circulatory system consists of different different blood vessels like arterioles, venules,…

Q: Which layer (or tunic) of the blood vessel wall is composed of smooth muscle and elastin?   A…

A: Blood vessels are channels through which blood is distributed to all the parts of the body. Blood…

Q: A blood vessel adapted to withstand great fluctuations in blood pressure would be expected to have:-…

A: Blood vessels refer to the network of arteries, veins, capillaries that helps in the circulation of…

Q: Use the model of circulation in the leg of a Canada goose to answer the following question. Canada…

A: Thank you for the question  Answer :- The correct answer is option C Explanation :- The blood…

Q: Arteries of the pulmonary circuit differ from those of the systemic circuit in that they carry, (a)…

A: The heart is the pumping organ that is responsible for circulating the blood to different parts of…

Q: Which statement best describes a characteristic of ALL arteries? Select one: O a. Arteries lead…

A: Introduction Blood vessels are tubes that transport blood throughout the body. They form a…

Q: This blood vessel carries blood away from the heart. O A. Artery O B. vein O C. venule O D.…

A: Blood circulate throughout your body with the help of certain vessels known as blood vessels.  Thus…

Q: Explain the nature of blood flow and pressure regulation in the following system; the capillary…

A: A complex network of blood vessels carries blood from the heart across the body. The arteries lift…

Q: he inferior vena cava brings blood from the lower regions of the body and empties into the…

A: the inferior vena cava is the largest vein and it carries deoxygenated blood from the lower body…

Q: Local control of blood flow through a tissue a) maintains a blood flow independent of changes in…

A: The mechanism of local control includes responses from vascular areas to the surrounding tissues.…

Q: Which of the choices below best describes the systemic circulation of blood? a. The flow of blood…

A: The circulatory system is one of the most essential systems in the body. The function of the…

Q: Type of blood vessels taking impure blood from the head part to the heart are calle O a. Coronary…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Nervi vasorum control ________.a. vasoconstrictionb. vasodilationc. capillary permeabilityd. both…

A: Tunica adventitia refers to a loose and thinner connective tissue layer producing the outer covering…

Q: The vessel layer that has a direct role in vasoconstriction is the __________.   A tunica intima…

A: The contraction or narrowing of the blood vessels that is done by the walls of the small muscles is…

Q: The innermost layer (or tunic) of the blood vessel wall is called the:   A tunica intima.   B…

A: Blood vessels are important in distributing blood to all the parts of the body. It carries oxygen,…

Q: Low pH, if detected in the aortic arch, will cause the medulla oblongata to activate the

A: Sympathetic nervous system and parasympathetic nervous system are division of autonomic nervous…

Q: Prolonged pressure on the skin causes reddened areas at the point of contact due to: Select one: a.…

A: A pressure ulcer is also known as bed sores or pressure sores is an injury in the skin and…

Q: Which of the following statements is true?a. The longer the vessel, the lower the resistanceand the…

A: Blood is a fluid connective tissue that circulates all over the body delivering nutrients and oxygen…

Q: Sympathetic impulses to the smooth muscles in the walls of arteries and arterioles produceA.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Discuss what do you mean by return of spontaneous circulation.

A: Return of spontaneous circulation is the re start of a sustained heart rhythm that perfuses the body…

Q: What type of capillaries have large pores within their endothelial cells and are the leakiest? O…

A: ▪︎Capillaries are the tiny blood vessels  which connect arterioles to venules.These are the smallest…