Heartbeats can be heard using a stethoscope and correlate with vibrations associated with the contraction of the heart chambers. 0 0 0 0 vibrations associated with the opening of the heart chambers. vibrations associated with the opening of the heart valves. vibrations associated with the closing of the heart valves.

Q: Name the site of the cardiac centers in the brain.Name the two types of cardiac centers. State the…

A: The cardiovascular center or the cardiac center is a region in the brain that regulates the rate of…

Q: Explain the conduction system of the heart. How heart rate is controlled in our body.

A: The conducting system of heart It is made of myocardium that is specialised for initiation and…

Q: Apex of the heart is closer to the person’s head than is the base of the heart   True False

A: Heart is an inverted cone-shaped muscular organ that comprises of four-chamber and multiple blood…

Q: Which of the following statements best describes the actions of the neurotransmitter noradrenaline…

A: Noradrenaline is a neurotransmitter that regulates cardiovascular function. It binds to…

Q: Which ion movement causes depolarization in the contractile cells of the heart? Ca++ leaving the…

A: The human heart is a muscular blood pumping organ made up of electrically excitable cardiac muscle…

Q: Explain how the electrical activity of the heart can be viewed fromdifferent angles with…

A: The ECG is the tool through which electrical events in the heart are evaluated. The processes are…

Q: Sympathetic stimulation of the veins Causes vasodilation and an increase in stroke volume Causes…

A: Autonomic nervous system (ANS) is responsible for controlling involuntary muscle movements and…

Q: The heartbeat is regulated by the cardiac conduction system and includes five different components.…

A: The heart is divided into a right and a left side along its midline, both the chambers in turn are…

Q: A patient is given the choice between MRI and PET to diagnose their heart condition. Briefly…

A: MRI and PET scans  are diagnostic testing procedures that help the physician to analyse the internal…

Q: The heartbeat is regulated by the cardiac conduction system and includes five different components.…

A: The heart is the main organ in the circulatory system that is responsible for pumping blood to all…

Q: The heart beats without extrinsic stimulation from the autonomic nervous system. True or False

A: We know that The autonomic nervous system can be defined as the type of nervous system which…

Q: in the heart's pacemaker cells, the timing of the heart rate is determined by the diffusion of…

A: The heart is a pump that transports blood through a network of arteries. Its function is to send…

Q: which of the following occurs with the heart chambers when they contract? Pick two answers: volume…

A: Heart is the central organ of the circulatory system. It is a muscular organ that pumps blood into…

Q: Chordae tendineae: Group of answer choices hold the AV valves in place. contract when the heart…

A: The papillary muscles of the heart are connected to the mitral and tricuspid valves cusps by thin…

Q: Describe how changes in blood pressure, pH, carbondioxide, and oxygen affect the function of the…

A: Blood functions and carries oxygen and nutrients to all the body parts and tissues to regulate the…

Q: MEASUREMENT OF PULSE RATE Give the pulse rate in the following conditions, explain the changes of…

A: The heart beats constantly in order to keep blood flowing throughout the body. Its rate varies…

Q: The pressure in the veins sufficiently high to drive the flow of blood into the heart is callec O…

A: The heart is a fist-sized organ that pumps the blood throughout the body. It is the primary organ of…

Q: Relate the timing of heart sounds to the ECG waves and pressure changes during systole and diastole.

A: ECG stands for Electrocardiogram. It is the graphical representation of the conduction system and…

Q: Explain in details contraction of the heart on the organ level, meaning the whole  heart including…

A: The conducting system of heart contains cardiac muscles and conducting fibers. These conducting…

Q: What affect will an increase in heart rate have on the recording of heart sounds?

A: Heart rate is the number of beats per minute that are typically estimated by the regular…

Q: Describe in detail the flow of blood through the chambers of the heart.  Name all blood vessels and…

A: As we know the heart is a muscular organ made up of cardiac tissue that pumps blood throughout the…

Q: cardiac output drops, then A and B • A and C Blood flow must decrease Blood flow must increase  The…

A: The objective of the question is to understand the physiological changes that occur when cardiac…

Q: An increase in heart rate leads to a increase in arterial pressure leads to a in end diastolic…

A: The heart is the central organ of the cardiovascular system of the body. It is a myogenic organ that…

Q: Discuss the heart contraction on the organ level, meaning the whole heart?

A: The circulatory system, pumps blood throughout the body in human heart ,  replenishing oxygen and…

Q: A key role of the atrioventricular node is to   act as a barrier to prevent the electrical impulse…

A: Heart pumps blood through a system of blood vessels, called the circulatory system. The heart is a…

Q: Fill in the chart Drug Classification Effect on Heart Rate Epinephrine     Acetylcholine…

A: Cardiac drugs are the drugs that used to improve  or treat the disorders associated  with…

Q: Give an in depth description (with explanation) of were the heart is in the body

A: Heart is an organ in the body which is involved in supplying the blood to all the parts of body by…

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: heart rate before and after performing an exercise? Why does your heart rate change before and after…

A: Exercises results in both physiological and psychological changes.

Q: Search the Internet for different heart sounds. See if you can detect the difference in sound…

A: The heart is a muscular organ about the length of a fist, placed just behind and slightly left of…

Q: Decreasing vascular decreasing cardiac will decrease blood pressure. or Dilation; contractions…

A: Blood is the primary transport fluid of the human body. It transports several important factors like…

Q: Identify the component of the heart’s electrical conduction system that fits each description below:…

A: Cardiac cycle is an event which involves with continuous relaxation as well as relaxation of heart…

Q: In the heart sound, how might abnormal sounds be used to diagnosed heart problems?

A: When a normal heart functions, it produces two heart sounds namely S1 or the lub sound and S2 or the…

Q: Explain how heart function changes as we age.

A: Aging is a part of life that leads to various changes within an individual's body, both in terms of…

Q: The heartbeat is regulated by the cardiac conduction system and includes five different components.…

A: The conduction system of the heart which is also referred to as the cardiac conduction system…

Q: Hypertension increases afterload for the heart which in turn   a-decreases Stroke Volume b-increases…

A: Afterload is the pressure that the heart muscles need to work against to eject the blood…

Q: Explain whey there may be differences between the heart sounds recorded from the base and the apex…

A: The heart sounds are produced inside the heart due to the flow of the blood. The valves present in…

Q: e heart and circulatory system and the importance of healthy heart function.

A: The pumping mechanism of the heart normally maintains and regulates the balance between cardiac…

Q: Discuss the effect of two age-related heart diseases onthe function of the aging heart.

A: People above the age of 65 are more prone to develop heart diseases like coronary heart disease or…