2. The atrium and ventricle on each side of the heart are separated by one-way valves called ______.…
Baroreceptors at the carotid sinus (the bifurcation of internal and external carotid arteries in the neck) and the aortic arch detect changes in blood pressure. These non-encapsulated nerve endings, located in the adventitial layer of arteries, are technically mechanoreceptors; they respond to arterial distension occurring due to a change in blood pressure. Afferents from the carotid region form the fine carotid sinus nerve which ascends into the glossopharyngeal nerve (9th cranial nerve). Afferents from the aortic region form the aortic (depressor) nerve before ascending into the vagus (10th cranial nerve). These cranial nerves terminate in the nucleus tractus solitarius.…
As stated in the study the subjects were placed in a room with a certain temperature and that was away from noise of the clinic. The subject then took off any constrictive clothing and was seated to relax for a minimum of five minutes. With the participants feet flat on the floor the blood pressure reading was obtained and recorded. After a minimum of three minutes the subject was told to cross one leg over the knee of the other leg and the blood pressure was then measured and recorded again (Foster-Fitzpatrick, Ortiz, Sibilano, Marcantonio & Braun, 1999).…
You need four digital photographs. At least one should show your face (with safety glasses) as you perform the experiment. Include these photographs:…
There are different ways to diagnose your blood pressure. The most common way is to use a blood pressure machine or monitor. The doctor normally takes an inflatable cuff and put it around your arm. The machine gets turned on and the cuff begins to tighten a little around your arm. While the cuff is tightening the machine is checking your blood pressure. Once the cuff deflate, it is done checking your blood pressure.…
Sit down somewhere quiet and place the end of the funnel with the balloon over it against your chest, directly onto your skin, just to the left centre. Hold the other funnel to your ear. You should hear a low beating sound. Use the timer to count how many beats you hear in 20 seconds. Multiply this number by three (use a calculator if you’re not confident) to find out how fast your heart beats in one minute. Try doing some more tests such as running around for 5 minutes and then checking how fast your heart is beating. Compare your results to your brothers, sisters, parents and even pets heart rates, are there any…
2. What were the specifi c eff ects of the Lasix, hot water, and alcohol on the couple’s blood pressure?…
Using up and down arrows, show the effect of increased blood pressure (BP) on the impulses sent to the brain, the effect on the parasympathetic (PNS) and sympathetic (SNS) nervous systems and the resulting change in blood pressure.…
This experiment needed various specialist pieces of equipment, without these you cannot perform this experiment. Firstly a cycle ergometer, a Douglas bag, on top of the Douglas bag there was a one way valve, the Douglas bag also had a stop cock which stopped air from escaping when the participant wasn’t cycling, a tube was used to connect the mouth piece to the Douglas bag, a sterile mouth piece, a nose clip, a Servomex Analyser, a dry gas measure, a pump (for the dry gas meter), a barometer, weighing scales, a tape measure.…
The quantitative study uses mostly primary sources in the literature review. This study was published in 1998 with the literature review sources ranging from 1984-1998. Sources used in this review are studies about the proper technique for measuring blood pressure, things that affect blood pressure readings, and suggestions to help prevent symptomatic orthostatic hypotension. The literature review provides a basis for the study because it supports the claims that there is inconsistency about whether feet should be kept flat on the floor while measuring blood pressure, and whether it would skew…
The primary function of the heart is to transport blood throughout the body, which delivers oxygen, nutrients and chemicals to the cells of the body to ensure their survival and proper function and to remove the cellular wastes. For the body to achieve this, it must maintain a certain blood pressure within the body to overcome gravity and orthostatic changes. If the body did not keep a certain pressure, distal cells and organs would not be able to receive a constant blood supply and cause a homeostatic imbalance. This experiment will show the possible changes in blood pressure due to gravity and orthostatic changes, but first, what is blood pressure and why is it important?…
Track the effect on blood pressure by reducing venous return. Go through all the steps.…
6. During the course of your experiment, did you obtain any blood pressure readings that were outside of the normal range for the group being tested? What did you notice on the medical charts for these…
The purpose of this experiment is to compare blood pressure as related to gender and athletic status.…
Cardiovascular Dynamics and the Cardiovascular Physiology experiments both have multiple goals. The first experiment aims to understand how blood flow, pressure gradient, and resistance relate to one another. To understand this, resistance and contributing factors, such as vessel radius, viscosity, and vessel length must be studied. The effects of vessel radius and stroke volume on the ventricular pump should also examined. The experiment also calls for an understanding of cardiovascular compensation. Pump mechanics are further understood through a design of further experiments. The Cardiovascular Physiology experiment attempts to understand the effects of parasympathetic and sympathetic nervous systems on the heart, through vagus nerve stimulation. Refractory periods and relative refractory periods will be studied in direct stimulations of the heart, as well as the five phases of the cardiac cycle. Lastly, the effects of temperature, hormones, and ions will be understood. Epinephrine, pilocarpine, atropine and digitalis are the hormones used to modify the heart. Sodium, potassium and calcium are the ions used in this experiment.…