Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 53, Problem 9TY
Summary Introduction
Introduction:
The regulation of homeostasis related to the circulation of blood is maintained by an integrated system. It comprises organs and receptors. The baroreceptors are present in the major blood vessels such as aorta and carotid artery.
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- Which statement best describes Arteries? A) They have thin walls and transport blood away from the heart B) They have thick walls and transport blood toward the heart C) They have thin walls and transport blood toward the heart D) They have thick walls and transport blood away from the heartarrow_forwardIf blood pressure was to drop, how is the signal transmitted to the central nervous system? a) The baroreceptors decrease the generation of action potentials below their normal level. b) The glassopharyngeal nerve increases the transmission of action potentials, while the vagus nerve does not. c) The baroreceptors increases the generation of action potentials past their normal level. d) The glassopharyngeal nerve decreases the transmission of action potentials, while the vagus nerve does not.arrow_forwardWhy do the blood vessels going to the skin and internal digestive organs constrict to get smaller during a fight or flight response? a. to let in more light b. to increase blood flow c. to redirect blood to the areas that are involved in the panic response d. to allow the body to take in more oxygenarrow_forward
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- Complete ventricular filling occurs during what phase of the cardiac cycle? a. when the atria are in diastole b. when the ventricles are in diastole c. when the ventricles are in systolearrow_forwardWhich of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.arrow_forwardThere is reduced blood flow to tissues and organs in cardiogenic shock. What is the main cause of this reduced blood flow? Question 4 options: a) A decrease in systemic vascular resistance b) A reduction in preload c) A reduction in cardiac output d) The loss of sympathetic tonearrow_forward
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