What kind of catabolism occurs in the heart?

Q: What is the relationship between end-diastolic ventricular volume and stroke volume in a normal…

A: Human heart is the Center for regulating blood across the body. It is located within the thoracic…

Q: Describe the autonomic innervation of the heart.

A: The heart is innervated by sympathetic and parasympathetic fibres from the autonomic branch of the…

Q: What are Cardiac Action Potentials?

A: Unlike the action potential in skeletal muscle cells, the cardiac nerve impulse isn't initiated by…

Q: Pacemaker in heart is?

A: The tissues of the cardiac muscles responsible for the origin and conduction of cardiac impulse…

Q: Why does the heart spend more time in diastole then in systole?

A: Diastole and systole are the two phases of the cardiac cycle. They occur as the heart beats and…

Q: What are the mechanisms that assist in returning venous blood to the heart?

A: The most important transport liquid in the human body is blood. This is circulated from heart to…

Q: What is known as cardiac output ?

A: The human heart has four chambers within it. These four chambers are the Right and Left atria and…

Q: What factors regulate heart rate during exercise? Stroke volume?

A: The cardiovascular system comprises the heart, blood vessels, and lungs. It is also named the…

Q: What drives heart rate?

A: The heartbeat is activated by electrical impulses that travel down a special pathway through the…

Q: What initiates action potentials in cardiac muscle?

A: Generation of action potential activates the neuron during the generation of stimuli. It is studied…

Q: What is Preload and Afterload in the cardiac output of a human heart?

A: Preload is the initial stretching of the cardiac myocytes (muscle cells) prior to contraction. It is…

Q: What effect does a bigger heart have on stroke volume and heart beat?

A: Stroke Volume (SV) can be defined as the volume of blood in milliliters that is ejected from each…

Q: What effect does sympathetic stimulation have on the heart?

A: The sympathetic nervous system is responsible for stimulating the vasoconstriction of blood vessels.…

Q: Describe the cardiac center and innervation of the heart.

A: The heart refers to an organ that pumps and provides blood supply to the body via the blood vessels.…

Q: What are the two blood vessels that provide the blood to the heart?

A: A human heart is 4 chambered mascular organ.  Both atria and ventricles are 2 in number. Along with…

Q: Define about Conduction system of the heart.  ?

A: The heart is a muscular organ and is about the size of a fist. It is present behind the left side of…

Q: Which region of the heart is innervated by the sympathetic division but not by the parasympathetic…

A: Heart is the vital part of the body that help in the circulation of blood, oxygen and nutrients…

Q: Which of the four chambers of the human heart has the thickest muscular walls?

A: The cardiovascular system consists of the heart, blood, and blood vessels and is also known as the…

Q: What effects does the parasympathetic nervous system have on cardiac output?

A: The cardiovascular system plays the part in conveying the blood through vessels to and from all…

Q: What forces drive the venous return to the heart?

A: Anatomy and physiology are the branches of biology, anatomy deals with the study of the structure of…

Q: What happens as the blood flows from the atria into the ventricles of the heart?

A: Answer 1 is Option D is correct. The cardiac cycle includes all the changes that occur during one…

Q: What is the significance of atrio-ventricular node and atrio-ventricular bundle in the functioning…

A: Introduction Significance of atrioventricular node and atrioventricular bundle in the functioning of…

Q: How does the long plateau of the cardiac action potential develop and what is its functional role?

A: Hi, Thanks For Your Question.  Answer : A Transient Shift In Voltage (Membrane Potential) Across The…

Q: Describe the venous system of the heart?

A: Human heart is the Center for regulating blood across the body. It is located within the thoracic…

Q: Which organs have an increased proportion of cardiac output during exercise? Which receive a…

A: Cardiac output is also called heart output. It describes the blood volume being pumped by the heart…

Q: How is the heart regulated by the nervous system?

A: Human Heart is a four-chambered, fibro-muscular organ. There are two atria through which the heart…

Q: how do gap junction and intercalated disks aids contraction of heart?

A: Cardiac muscle tissues are only limited to the heart. The contractions of the cardiac muscles are…

Q: Why does heart rate increase with exercise?

A: Exercise may be defined as any physical body activity that can increase the fitness of an individual…

Q: How does the heart rate differ before and after exercise?

A: Heart rate, also termed as the pulse rate, is the rate at which a person’s heart beats for one…

Q: What are the pathways of conduction through the heart?

A: The conduction system in the heart is basically a collection of nodes which can consist of nerve or…

Q: What type of cardiac rhythm is this??

A: Electrocardiogram (ECG): This is a simple test. this test can be used to check: -Heart's rhythm…

Q: What are the main components of the venous system in the heart?

A: The venous system is composed of veins. The veins are the part of the vasculature long with…

Q: What are the basic blood vessels in the heart? Describe briefly the function of each.

A: The circulatory framework, likewise called the cardiovascular framework or the vascular framework,…

Q: What are the major components that make up a human heart?

A:

Q: What is an electrical difference across the fibers of the heart called?

A: Introduction: Even if all of the nerves supplying the heart are cut or if it is divided into several…