explain how heart rate is controlled by the heart itself and by the ANS

Q: Trace a drop of blood from Left Ventricle to the Upper Limb

A: Arteries are the blood vessels that carry blood from the heart to different parts of the body. All…

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: Consider the ECG above. What does ventricular depolarization cause? How does this result in the…

A: The electrocardiogram (ECG) is a graphical representation of the electrical activity of the heart…

Q: Describe how GSR and Heart rate interact with the PSNS and SNS

A: GSR (Galvanic Skin Response) and heart rate are two physiological measures that are often used to…

Q: Describe how the heartbeat is controlled

A: Sympathetic nervous system which includes the ‘fight and flight responses’ release neurotransmitter…

Q: Explain the structural differences between the atria and ventricles.

A: The heart is the one of the important organs of our circulatory system. The heart is a fist sized,…

Q: Which of the following statements are true? (a) The left ventricle wall is thicker than the right…

A: It is related to the circulatory system

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: Describe the pressure-volume curve of the left ventricle

A: Introduction: The sequence of alterations in the flow and pressure in the cardiac chambers and the…

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: List other factors that affect heart rate

A: Heart rate is the rate at which heart beats per minute. The average adult heart rate is 72 beats per…

Q: Explain why the walls of the atria are thinner than those of theventricles, and why the walls of the…

A: The heart of human beings is four-chambered, comprising of two atrial chambers and two ventricular…

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: Explain why ventricles are more muscular than atria

A: Heart ventricles: The large, lower chembers of the fibromuscular organ(heart) that collect and expel…

Q: Define atrioventricular (AV) node

A: The atrioventricular (AV) node is situated in the right posterior portion of the inter-atrial…

Q: Discuss the baroreceptor reflex and explain its influence on blood pressure and heart rate.

A: Homeostasis is the mechanism that is performed by the body's physiological processes to maintain…

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 how heart rate and stroke volume are regulated include the role of parasympathetic ans…

A: Heart rate: Is the number of times the heart beats in a minute. It is regulated by the autonomic…

Q: If the cardioinhibitory center of the medulla oblongata were damaged, which division of the…

A: The rhythmic contraction of the heart is under the influence of the autonomic nervous system and is…

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: Mrs B had a heart transplant and as a result, she no longer has nerve supply to her heart. Keeping…

A: The heart transplant, or a cardiac transplant, is a careful transfer system performed on patients…

Q: Identify the locations of the four ventricles and thestructures that connect them

A: The ventricles are mechanisms that contain and carry cerebrospinal fluid in the cranial cavity. The…

Q: Define atrioventricular (AV) bundle

A: The atrioventricular bundle can be defined as a bundle that comprises specialized fibers of the…

Q: Explain why the walls of the atria are thinner than those of the ventricles, and why the wall of the…

A: The walls of Artria are thinner than Ventricle because the artria are only receiving chambers…

Q: Describe the relationship of auscultated heart sounds, pulse rate, and heart rate

A: The heart is a muscular organ about the fist-size, placed just behind and a little left of the…

Q: Describe isovolumetric ventriclar contraction in five steps

A: The cycle which includes one round of atrial contraction and ventricular relaxation is referred to…

Q: explain the  heart process

A: The human heart is an organ that pumps blood through the circulatory system's veins, giving oxygen…

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.…

Q: Where the action potential is generated (i.e. atria or ventricles) 2) What actions are occurring…

A: The heart is a huge muscular pump that is divided into two halves,  the right and the left. The…