If the cardioinhibitory center of the medulla oblongata were damaged, which division of the autonomic nervous system would be affected, and how would the heart be influenced?

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: How does the cerebral arterial circle ensure that the brain has a constant supply of blood?

A: The cerebral arterial circle refers to the ring-like composition of arteries that encircle the…

Q: Total blood flow in the cerebral circulation a. varies with systemic arterial pressure. b. is…

A: Cerebral circulation: It is the transportation of blood in the brain through a network of blood…

Q: How is the nervous system Important in controlling blood flow?

A: The nervous system allows all of the body's parts to communicate with one another. It also responds…

Q: Describe two effects on the heart of sympathetic nervous system stimulation.

A: Introduction: The nervous system is categorized into the peripheral nervous system (PNS) and the…

Q: Why is it possible for acetylcholine to actually cause an increase in stroke volume, even though…

A: Acetylcholine is one of the most vital neurotransmitter in the human body, that is seen in both the…

Q: Explain how vascular resistance and blood flow are regulated by (a) sympathetic adrenergic fibers,…

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

Q: Where are the cardiovascular control centers located?

A: The cardiovascular system is made up mostly of the circulatory system, that is, the system of blood…

Q: Which part of the brain contains cardiac center ?

A: The cardiac muscle is the central organ of the circulatory system comprising two upper (right and…

Q: Describe the effect if the atria were to contract at thesame time as the ventricles, or if the…

A: The cardiovascular system is an organ system which distributes blood to all the parts of the body…

Q: How does acetylcholine cause a decrease in heart rate?

A: Acetylcholine is a neurotransmitter of autonomic nervous system of human. It releases from…

Q: Compare and contrast sympathetic and parasympathetic control of heart rate

A: The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system that…

Q: What is the function of ventricles?

A: Ventricle is a hollow cavity present in an organ. In Brain, ventricle is a region of choroid plexus…

Q: Fewer action potentials travel up the afferent nerves to the medullary cardiovascular center, and…

A: The cardiovascular center is part of the autonomic nervous system and is responsible for controlling…

Q: What is an atrioventricular node?

A: The atrioventricular node (or the AV node) is an important part of the electrical control system of…

Q: A patient is taking a drug that blocks beta-adrenergic receptors. What changes in cardiac function…

A: A drug is a chemical substance that produces a biological effect. When the drug is taken by…

Q: Predict the effects of a drug that blocks the sympathetic nervous system on blood pressure and heart…

A: Sympathetic nervous system (SNS) and para sympathetic nervous system are the two main divisions of…

Q: what drives the enhanced sympathetic outflow to most other arterioles, the heart, and the veins and…

A: The sympathetic nervous system (SNS) is part of the autonomic nervous system (ANS), which also…

Q: What effect will an increase in parasympathetic activity have on heart rate, force of contraction,…

A: The  Autonomic nervous system (ANS) has two interacting systems: the sympathetic and parasympathetic…

Q: What is the action of Sympathetic division (arousing) on heart beat functioning when a crisis…

A: Nervous System -- Structurally the nervous system is divided in to two parts ( i ) Central Nervous…

Q: Parasympathetic – Slows heart rate because it increases flow through _____ channels and decreases…

A: The parasympathetic nervous system can be defined as the type of nervous system that conserves the…

Q: Explain cardiopulmonary function in patients with Parkinson's Disease?

A: Parkinson's disease (PD) is a neurological condition that worsens over time and mostly impairs…

Q: Draw a pair of curves relating end-diastolic volume and strokevolume, with and without sympathetic…

A: The EDV represents the filled volume of the ventricle prior to contraction, and the ESV represents…

Q: What is the mucociliary escalator?  What would the consequences be to a person if it were damaged?

A: In the human respiratory system, there are two zones called the respiratory zone where actual…

Q: Roberto is a 78-year-old male who has recently been diagnosed with Class III Congestive Heart…

A: Stiffness of left ventricle is caused by coronary artery clogged with deposits of cholesterol, high…

Q: what is the strucure of left ventricle

A: The left ventricle, located in the lower left portion of the human heart, is responsible for pumping…

Q: Explain why heart attack victims will often exhibit pain in the left shoulder and arm.  How is it…

A: The heart is an organ that is a muscular organ that pumps blood into the circulation. The heart lies…

Q: Why is your heart rate high after running a short distance, but not as elevated after running a much…

A: Introduction: To maintain blood circulation throughout the body, the heart beats nonstop. Its rate…

Q: In response to a severe hemorrhage, blood pressure lowers, the heart rate increases dramatically,…

A: The human body is made of different organ systems. Each of them is involved in maintaining the…

Q: What effect does sympathetic stimulation have on stroke volume if thevenous return remains constant?…

A: Most blood vessels, including those in the skin, the digestive tract, and the kidneys, constrict…

Q: After a man was stabbed in the chest, his face became blue and he lost consciousness from lack of…

A: CARDIAC TAMPONADE : it is a serious medical condition in which blood or fluids fill the space…

Q: answer all questions don't need explanation 1) Multiple answers: Which of the following would cause…

A: MAP is the estimation that explains the typical pulse in an individual's veins during a single…

Q: 1)In the regulation of heart rate, which of the following is the proper stimulus? Group of answer…

A: Note- We are supposed to answer 3 subpart of  a question. Please repost other questions separately.…

Q: cause of reflex tachycardia

A: TACHYCARDIA It is the medical which represents the fast heart rate. REFLEX TACHYCRDIA The reflex…

Q: Epinephrine is released during vigorous exercise. How would epinephrine cause vasoconstriction in…

A: Epinephrine is a hormone which is secreted from the adrenal medulla gland as a fight or flight…

Q: escribe the components of the ventricular system and the regions of the brain in which each is…

A: The ventricular system is a network of chambers in the brain that communicate with one another.…