Parasympathetic nerves _____.   A cause smooth muscle in blood vessel walls to contract   B cause smooth muscle in blood vessel walls to relax   C have no role in the innervation of blood vessels

Q: Which of the following characteristics imparts autorhythmic cells with the ability to function…

A: Autorhythmic cells are those cells which are excited by self. These cells generates action potential…

Q: Inotropic agents affect: contractility. O depolarization. O heart rate. O stroke volume.

A: Given: Inotropic agents are also called as intropes. These are the medicines that alters the force…

Q: In cardiac autorhythmic pacemaker cells, how does parasympathetic stimulation make it more…

A: The heart shows autorhythmicity which means that the heart itself can initiate the heartbeat.…

Q: Fill in the blank:  Endings of parasympathetic nerve fibers secrete _______________________, which…

A: The cardiovascular system is responsible for circulating the blood throughout the body so that…

Q: Nodal (conductile) cells in the heart differ from other myocardiocytes (contractile cells) in that…

A: There are two major types of cardiac muscle cells present: myocardial contractile cells and…

Q: My instructor has told us that dehydration leads to a drop in blood pressure due to low blood…

A: Blood is the connective tissue with liquid plasma and the formed elements.

Q: The first change in vital signs * in shock patients is pulse rate O blood pressure O urine output O…

A: There are four major categories as a result of which shock may be caused:  Cardiogenic shock: It is…

Q: What happens when the pressure in the ventricles becomes lower than the pressure in the atria?…

A: Answer  a) the atrioventricular valves open

Q: n circulatory system, one the main function of our blood is controlling our body temperature.…

A: Blood is one of the connective tissues that absorbs and distributes heat throughout the body.

Q: People with allergies frequently take antihistamines and decongestants to relieve their symptoms.…

A: An allergy is a response generated by the immune system to a foreign substance that is not generally…

Q: The center involved in controlling the cardiovascular system is found in the thalamus. O cerebral…

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

Q: Which of the following channels are involved in the action potential in contractile cells of the…

A: An action potential is a sudden, fast, transitory, and propagating shift in the resting membrane…

Q: In Autorhythmic cells, Sympathetic control of heart rate leads to a(n)

A: Answer: Autorhythmic cells = These are the cells acts as pacemaker to initiate the cardiac cycle and…

Q: This photo shows a child receiving an oral vaccine againstpolio, a disease caused by a virus that…

A: Polio is an infectious disease caused by poliovirus. It mainly attacks motor neurons of the central…

Q: Increased action potentials from the sympathetic nervous system would cause which of the following?…

A: The sympathetic nervous system (SNS) directs the body's fast involuntary response to dangerous or…

Q: People with allergies frequently take antihistamines and decongestants to relieve their symptoms.…

A: Allergy is defined as a type of reaction that is caused due to the immune system response against…

Q: UACYL .com/forms/d/e/1FAIpQLSfIHzragocEFvvDxW Which of the following best describes the flow of…

A: oxygenated blood -  pulmonary vein - left atrium - left  ventricle - aorta     thrombocytes or…

Q: Vhich of the following is caused by acetylcholine? O Depolarisation of the atrioventricular node O…

A: Acetylcholine act as a neurotransmitter. It is the chief neurotransmitter of the parasympathetic…

Q: Acetylcholine affects the graded potential of autorhythmic cells

A: Introduction: Autorhythmic cells: The myocardial conducting cells have the ability to originate the…

Q: Fill in the blank:  Parasympathetic nerve fibers that supply the heart make up part of the…

A: According to the body requirements, the heart pumps blood that is variable in volume. During the…

Q: AT cell is a structural unit of the nervous system. O special protein that fights infection. O white…

A: Lymphocytes is the  part of WBC, Lymphocytes are cells that circulate in our blood that are part of…

Q: A rhythmic beating of cardiac muscle in a mammalian heart is initiated by the _____.…

A: The heart is divided into four chambers consisting of two atria and two ventricles; the atria…

Q: Choose ALL that apply to the above image. O Ais the Purkinje fiber. Bis the L Bundle Branch. A helps…

A: The heart is a muscular organ that acts as a pumping machine in higher animals. The human heart…

Q: 116 Cutaneous vasoconstriction is caused by an increase in which of the following? A) Activity of…

A: Cutaneous vasoconstriction is a thermoregulatory response that occurs to excess exposure to cold.…

Q: In humans, the pacemaker of the cardiac muscle cells is stimulated to increase contraction rate by__…

A: The process during which the contraction of heart increases is called the positive inotropic effect.…

Q: PART G – LET’S REVIEW Organization of the Nervous System 1. Consists of the brain and spinal cord A.…

A: Nervous system is the complex system in our body which controls the entire body and coordinates the…

Q: Fluid in the lymph system mostly comes from what leaks out of capillaries O True O False Animals…

A: The lymphatic system is another circulatory system present in the body. The composition of the lymph…

Q: In humans the wall of the left ventricle is thicker than that of the right ventricle. This…

A: Cardiovascular system The circulatory system is also referred to as the cardiovascular system. It is…

Q: Which of the following would NOT result from an increase in sympathetic stimulation of the heart?…

A: The heart has muscles that contract rhythmically in order to pump blood throughout the body. The…

Q: Your grandfather was told that his SA node (pacemaker) has stopped functioning. Explain how his…

A: The heart is a muscular organ that pumps blood through the blood vessels of the circulatory system…

Q: When blood pressure drops after an injury, the body's response to re-adjust the pressure is…

A: Sympathetic stimulation  The sympathetic stimulation triggers the vasoconstriction of the blood…

Q: In the lab, symphatetic stimulation of the heart will decrease heart rate O increase heart rate O…

A: The heart's function is to contract and pump oxygenated blood throughout the body while deoxygenated…

Q: v slow can the blood move before you can't detect

A: Answer :: given data, source is blood which is moving and the transducer is the stationary…

Q: Blood pressure sounds heard when listening to the brachial artery are caused by _______.   A…

A: Stethoscope is used to hear the sound of blood pressure. These sounds will not be heard through…

Q: Fill in the blank:  Nerve impulses are carried to the diaphragm by the _______________________…

A: Phrenic nerve is a type of mixed nerve sending efferent signals and receiving sensitive afferent…

Q: 2. In an accident, a victim is found bleeding. The blood flows out of the victim's wrist in a smooth…

A: There are three types of blood vessels: arteries, veins, and vessels. Every one of these assumes…

Q: What are the similarities and differences of parasympathetic and sympathetic nervous system in terms…

A: The nervous framework is an exceptionally unpredictable piece of a creature that arranges its…

Q: When the blood pressure is high, how will the myogenic reflex help to bring the blood pressure baack…

A: Bayliss myogenic response, corresponds to the manifestations in muscle tone present in the…

Q: Fill in the blank:  Endings of sympathetic nerve fibers secrete _______________________, which…

A: Nervous system coordinates and controls the activities of the animals such as perceptions, behaviors…

Q: What is the direct effect (prior to any reflex compensation) of administering intravenously a…

A: An autonomic nervous system acts as on/off site which have a control over sympathetic and…

Q: atched to an unresponsive 31 year old male patient. You find w ment: ans to painful stimuli ulse at…

A: The state of the body when there is no response to outside stimuli is known as being unresponsive.…

Q: Vhich of the following is an inaccurate description of autonomic innervation of the cardiovascular…

A: The autonomic innervation of the heart is done by innervation of parasympathetic and sympathetic…

Q: Choose ALL that apply to the above image. Ais the Purkinje fiber. O Bis the L Bundle Branch. A helps…

A: The heart is a muscular organ that acts as a pumping machine in higher animals. The human heart…

Q: The nervous tissue that consists of myelinated axons transmitting information throughout the central…

A: The white matter refers to the sections of the brain and spinal cord that communicate between the…

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…