Answer:
Kupffer cells, also known as stellate macrophages due to their particular structure while viewed under a microscope, were first identified by scientist Karl Wilhelm von Kupffer, after whom the cells were named, in 1876.
These cells, whose origin is in the yolk sack during fetal development, later on move to the liver where they will stay and further differentiate into their mature versions.
These cells are part of the liver cells, and are found particularly on the walls of the sinusoids, where they perform their two most important tasks. First, these cells are part of the immune system, as they are essentially macrophages. However, their role is pretty unique, as they are responsible not just for phagocytosis of invading bacteria, and other pathogens, and initiating immune responses, but also, this cell plays a role in decomposing red blood cells who are dying, and taking up the hemoglobin from them to further break that into reusable globin, and the heme group, from which iron is further extracted to be re-used and also to create bilirrubin, a part of bile.
Finally, these cells have been found to be connected to hepatic cirrhosis, as in their process of detoxifying ethanol, they produce toxins that force the liver cells to produce collagen, and thus to become fibrous.
I hope this helps! if you need anything else i can help ^^
The given statement "You must obtain consent before performing the heimlich maneuver on a conscious adult" is True.
Heimlich maneuver now has the title "Abdominal thrusts."
What is heimlich maneuver?
- Its a first-aid technique that involves applying abrupt, intense pressure to the belly, between the navel and the rib cage, to clear a blockage from someone's windpipe.
- When someone is choking, they are treated with the Heimlich maneuver. If you are choking and you are by yourself, you can try to free yourself by executing the Heimlich maneuver on the object that is blocking your windpipe or throat.
- The Heimlich maneuver functions by inducing a fake cough. A trapped object is forced out of the body by pulling on the diaphragm, which pulls air from the lungs and up through the throat.
Learn more about Heimlich maneuver with the help of the given link:
brainly.com/question/4275002
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Answer:
ECG paper is a grid where time is measured along the horizontal axis.
Each small square is 1 mm in length and represents 0.04 seconds.
Each larger square is 5 mm in length and represents 0.2 seconds.
Voltage is measured along the vertical axis.
10 mm is equal to 1mV in voltage.
The diagram below illustrates the configuration of ECG graph paper and where to measure the components of the ECG wave form
Heart rate can be easily calculated from the ECG strip:
When the rhythm is regular, the heart rate is 300 divided by the number of large squares between the QRS complexes.
For example, if there are 4 large squares between regular QRS complexes, the heart rate is 75 (300/4=75).
The second method can be used with an irregular rhythm to estimate the rate. Count the number of R waves in a 6 second strip and multiply by 10.
For example, if there are 7 R waves in a 6 second strip, the heart rate is 70 (7x10=70).
