If a person‘s heart rate is 180 beats per minute, what would be the frequency in Hz.

Q: you move from a sitting position to a standing position. after 2 minutes of resting in the standing…

A:

Q: Do you think the pulse delay would change if you measured the pulse using a toe instead of a finger?…

A: Introduction The heart is a muscular organ, derived from the mesoderm which is responsible for…

Q: Please provide rate, rhythm, pr interval, QRS interval and Rhythm interper

A: ECG interpretation is an important aspect that the nurses need to be abreast about .In emergency and…

Q: Explain your results using your knowledge of the cardiac cycle and of how the heart is regulated by…

A: ECG - it is graphical representation of activities of heart with help of chest leads that are placed…

Q: Which is not a characteristic of the heart sound represented by the green bar?

A: The auscultogram diagramatically represents the beats of heart as heard on auscultation.   Here the…

Q: If leaky Na+ channels in the cells of the SA Node became more leaky (allowed Na+ through at a faster…

A: Generation of the action potential is a significant characteristic of the cells of the sinoatrial…

Q: why is it important to assess a patient's ABC when they are experiencing a heart attack?

A: The objective of this question is to understand the importance of assessing a patient's Airway,…

Q: А In the image above, the dotted line represents a normal pacemaker potential. Describe the steps…

A: The heart is a major muscular organ of the cardiovascular system that is responsible for pumping the…

Q: Where would you expect the pulse to be in relation to the QRS complex (before, after, simultaneous)?…

A: An electrocardiograph often abbreviated as ECG or EKG, is a medical device used to record the…

Q: In the figure below on the left, label the P, QRS and T waves. Describe what is happening in the…

A: The electrical activities of heart are traced with the help of electrocardiogram. Under normal…

Q: You Measure Mrs. Jones' pulse as 54 beats in 30 seconds.What would you record as her pulse rate…

A: The heart produces two sounds lub and dub. One cycle consisting of one lub and one dub sound is…

Q: what would be the heart rate of this person?

A: The heart is a four chambered organ which helps to pump the blood to whole part of the body. The…

Q: take your pulse (or someone else’s pulse) either on your neck (carotid pulse) or wrist (radial…

A: The amount of blood that is pumped out by heart and circulated in the body to supply oxygen to the…

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: Based on Starling’s Law, how would increased blood flow to the heart during diastole (remember, this…

A: The cardiovascular system is one of the 11 major body organ systems that is concerned with the…

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: If SA node (=natural pacemaker) fıring rate is 100 potentials per minute, but resting heart rate of…

A: Introduction: Some cardiac tissues are concerned with the initiation (impulse generation), and…

Q: Find the Q10 values from 10-20°C and 20-30°C (given heart rates in bpm at 10°C = 5bpm, 20°C = 10bpm,…

A: The temperature coefficient (Q10) represents the factor by which the rate (R) of a reaction…

Q: If some tissues could extract all the O2 dissolved in arterial blood so that no O2 remained in…

A: Given Values: Cardiac output = 5500 ml/min Dissolved oxygen = 0.3 ml/100 ml blood

Q: When you are cold, your blood vessels contract. However, your heart rate and blood pressure…

A: When the temperature increases or decreases beyond the set point of the body there is a…

Q: Which of the following combinations would have OPPOSITE effects in changing heart rate? atropine and…

A: Introduction : Heart rate can be outlined as the speed of a human heart at which it beats. It can be…

Q: The ""lub-dup"" heart sounds are produced by the _______"   A "opening of the atrioventricular…

A: Heart sounds are heard by auscultation using a stethoscope. It is an important aspect of the…

Q: A) The term used to describe one complete heartbeat, or the time for both contraction and relaxation…

A: The heart is a vital organ in the human body and is the center of the circulatory system. It is a…

Q: Which of the following structures of the heart is responsible for pumping the blood to the lungs?…

A: Heart is the main pumping organ of the body. It is divided into four chambers - two upper atrium and…

Q: a) A consequence of the Frank-Starling law of the heart is that the outputs of the right and left…

A: The heart is an organ that is responsible for the pumping of blood to the body. The blood pumped by…

Q: Cells of the sinoatrial node are the primary pacemakers of the heart. If we increase the potassium…

A: Pacemaker cells of the heart functions to produce electrical impulses in the heart, which helps in…

Q: Predict the pressure changes that occur in the aorta, the left ventricle,and the left atrium after…

A: The heart is a smooth muscle organ that plays a major role in the circulation of blood. Human heart…

Q: In the first laboratory exercise, we measured a person's pulse. Pulse is often graphed in different…

A: Heart rate (beats per min) = 60/ pulse interval (sec) or in case B for example  Pulse interval is…

Q: You measure Mrs. Jones's pulse as 54 beats in 30 seconds. What would you record as her pulse rate (…

A: Ans. Pulse rate is normal 72 pr minute

Q: The heart has its own built-in pacemaker that generates a basic rhythm (heart rate) that the…

A: Pacemaker is a device which is inserted in the skin near the heart to generate electrical impulses…

Q: If a person‘s heart rate is 96 beats per minute, how many pulse cycles were counted in 10 seconds?

A: A heart beat rate or pulse rate or pulse cycle is the number of heart beats in one minute.  It is…

Q: Which of the following stimuli may produce an increase in heart rate? Select one: a. a threatening…

A: The correct answer is (c) a picture of a natural disaster.

Q: Teach me how to determine correctly the length of time between two consecutive R waves.

A: Introduction-  Electrocardiograph or ECG is a procedure which is done to check the heart activity.…

Q: Estimate the volume of a human heart (in mL) using the following measurements/assumptions: Blood…

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

Q: Describe the conduction pathway of the heart, and discuss two examples of disease states where…

A: The cardiovascular system of the humans consists of organs like heart and blood vessels. The primary…

Q: Epinephrine is the chief neurotransmitter of the sympathetic nervous system. What effect would you…

A: A neurotransmitter is a chemical substance produced and released by neurons (nerve cells) to…

Q: What do you call the secondary upstroke in the pulse tracing when the encircled structure closes?

A: A secondary upstroke is an additional upstroke that is performed after the main upstroke. This type…

Q: A likely effect of parasympathetic input to the heart would be to _____.     Open additional…

A: Introduction:- The parasympathetic nervous system originates from the medullary central sites (the…

Q: In a patient with bronchial asthma, explain the adynamic precordium and no heart murmur.

A: An adynamic precordium is normal finding during a physical examination of the cardio thoracic region…

Q: A drug that blocks the cardiac muscarinic receptor might be expected to: O Increased heart rate…

A: Cardiac muscarinic antagonists are the agent that inhibits the function of the muscarinic receptors.…

Q: If a person counts 13 pulse cycles in 10 seconds, what is the heart rate in beats per minute?

A: Heart beats and pulse rate are used by physicians for diagnosis of heart disorders and arterial…

Q: Why is it important that individuals calculate their own target heart rate zone when creating an…

A: Target Heart Rate Zone in Exercise:Individual Variation:People have different fitness levels, health…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.