Physiology Definition and 57 Threads

Eddie Hall is the current world record holder in the deadlift, a powerlifting maneuver in which a weighted barbell is lifted from the ground to waist height, then dropped. The figure below shows a side view of the initial and final positions of the deadlift. A side view of the initial position...

Hello everyone, I am studying the physiology of the kidneys and in all of the textbooks they say basolateral membrane referring to the basal membrane, does anyone know why we don't just say basal membrane?

Svante Pääbo won this year's Nobel Prize in Physiology or Medicine for his foundational work in paleogenimcs. Among other things, he was involved in determining the genomic sequence of Neaderthals, showing they interbred with modern humans before they disappeared, discovering Denisovans (similar...

Two American scientists have won the 2021 Nobel Prize in Physiology or Medicine for their discoveries of how the body senses temperature and touch. https://learningenglish.voanews.com/a/two-americans-win-nobel-medicine-prize-for-body-sensory-findings/6256678.html...

As the Covid vaccines become more prevalent worldwide, the hospitalization and mortality rates are coming down hearteningly. Actually, what happens after vaccination? 1) Vaccination causes the production of antibodies. So when later infection happens, the antibodies are up and ready to bind...

I am ~180lbs and have been lifting weights for about 12 years straight. I have also been running 3-4 times per week for the last 8 ish years. I have recently gotten into cycling, and noticed at the gym on the Schwinn "spin" bike, I will have peaks of around 400-500 watts, but it's definitely...

The Nobel Prize in Physiology or Medicine this year has been awarded jointly to Harvey J. Alter, Michael Houghton and Charles M. Rice “for the discovery of Hepatitis C virus.” https://www.nobelprize.org/prizes/medicine/2020/summary/

The equation: V(x) = 61*mV*(1/z)*(log[X(o)/X(i)]) Where: z = valence (charge of ion) [X(o)] = reference concentration (outside the cell) [X(i)] = concentration of species inside the cell I want to understand the intuition behind why the mV decrease as the charge increases. From what I...

Anise extracts contain Lignin-Carbohydrate complexes (LCs), which have been found to have anti-viral effects according to this article (DOI: 10.1271/bbb.100645 ). However, from what I understood by going quickly through the article, the scientists applied the extract directly onto the cell...

Today, the 2019 Nobel Prize in Physiology or Medicine was awarded to three scientists who study how cells sense and respond to changes in oxygen levels: https://www.nobelprize.org/prizes/medicine/ These three scientists were previously awarded the Lasker Prize for Basic Medical Research in...

Scientists described using information from brain recordings to generate understandable speech in a proof of principle study. Invasive recordings of brain activity normally involved in the production of speech sounds, at the level of controlling muscle movement, have been associated with the...

I have been studying about the physiology of hunger. I have studied about the hormones that are involved in the process of hunger, like ghrelin, leptin, pancreatic polypeptide, cholecystokinin, cholecystokinin (CCK) and the neurons like AgRP, POMC and neuropeptide Y (NPY) etc. I understand...

Hello, My book illustrates characteristics of different types of hypoxia in this table Arrows directed upwards indicate an increase and vice versa. I know what each type of hypoxia is, but I find a difficulty understand the change in venous PO2, O2 content and saturation of hemoglobin in...

By Summer I hope to dissect a fetal pig I'm ordering from the north Carolina biological supply company, I'm looking for a few books, one in depth on pig biology and a Atlas of the pig including the brain. Another book I'm looking for is a microscope usage and selection guide including oil...

We normally enjoy a thorough body massage session. What happens during a massage? Why and how do we feel pleasure during a body massage? Can some one explain the complete physiology of massage?

Hi, I don't actually get the function of erythropoitin hormone in erythropoiesis, what is written in my textbook is that erythropoietin accelerates all steps of erythropoiesis as it stimulates mRNA synthysis, and also, it shortens the maturation time of RBCs in the bone marrow. I would like a...

Hi all, My textbook says that the T tubules, which form an extensive network of transverse tubules that surround myofibrils, can carry the wave of action potential from the surface of the muscle fiber to the cell interior. Could you help me understand the sentence in bold because I'm not sure...

Hello, In my textbook, I read that the preganglionic fibers which supply the thoracic viscera originate in the lateral horn of the upper 4 thoracic segments. I read too that the the preganglionic fibers which supply the head and neck originate in the lateral horn of the first and second...

This morning, the 2017 Nobel Prize in Physiology or Medicine was awarded to Jeffrey C. Hall, Michael Rosbash and Michael W. Young for their discoveries of molecular mechanisms controlling the circadian rhythm. https://www.nobelprize.org/nobel_prizes/medicine/laureates/2017/press.html

Is there any research being conducted on how quantum physics can be used in biology? Has quantum physics, in any anyway, helped in the advancement of the medical field?

Hello, I read in my physiology book that when the ciliary muscle relaxes, the power of the eye lens decreases, hence we get the ability to see far objects. I am new to physiology, and when I googled "the power of the eye lens" I didn't find articles explain the sentence above simply. So I...

Hello, In my physiology book it is said that the glycocalyx helps attach the cells together. I know that glycocalyx is carbohydrates + proteins or lipids, but I don't understand the mechanism by which the glycocalyx attach cells together, and google searches don't help. So I would appreciate...

Homework Statement The intial step in the digestion of milk in Humans is carried out by which of the following enzymes? A) lipase B) trypsin C) rennin (No, not renin) D) pepsin Homework Equations Casein is converted to Paracasein by rennin and then paracasein along with calcium is acted upon...

Here I will talk about the digestive system of my Kepler Bb humanoids. Mouth The teeth are much stronger than bone(Strong enough that they can eat bones no problem). Other than that and all time tooth formation(so a loose adult tooth is no problem for them since another will grow in its...

I wonder how were historically functions of the body organs determined? I mean how they dermined working of circulatory system , Nervous system, Excretory system etc?

Homework Statement Choose each of the following statements that would be true regarding the brain or special senses. There could be multiple answers. a) Properly using the captive bolt should result in pupils that constrict in response to a bright light b) The part of the brain that releases...

Hi, I have recently conducted a Respiratory physiology practical, where i measured the lung v0olumes and capacities, using the technique of spirometry. I therefore recorded the FEV1, FVC, FER AND PEF values from the spirometry. However, i also had to collect and analyze the expired air; using a...

This thread is also my introduction to the forum, so hello. So the basic setup of my story is the hordes of hell invade New York City. I'm agnostic, so it's more "beings from another dimension enter ours" than a religious thing - it's like the DOOM game series. Let's say that a certain amount...

I've been researching this subject for a little while. I'd like to hear your ideas, because the topic is widely discussed. So here is some part of my research which makes my opinion quite clear: "Sometimes we say , that one is moved by music. Of course, it does not mean for him/her to be...

What exactly is the concrete difference between those three?

I have no idea where to post this, but I figured this is the most relevant place. I'm sorry if it's in the wrong section. I am a Pharmacology and Toxicology major at a large state school. I was only required to take physics I and II. (algebra based) At first I thought that was fine, but I...

Hi all, Does anyone know what physics limits human tolerance to extreme g-forces? I know the average human can take g-forces 5-7 g, and a fighter pilot, with training and a G-suit can maybe get up to 12 g. And people can survive g-forces higher than this for a very short time. I know all the...

Hi, just curious, I think this is a question on physiology. What does it take to be able to do the Cossack dance , in the first 8 seconds or so of: It seems impossible for me to even move when I am in that position, in my knees, let alone being able to jump around while stretching out my...

From the wiki page on Hermann von Helmholtz: "an 1847 physics treatise on the conservation of energy was written in the context of his medical studies and philosophical background. He discovered the principle of conservation of energy while studying muscle metabolism. He tried to demonstrate...

I came across a blog post or some internet page (probably a year ago now) saying that since the 1970s biological systems could be described purely in terms of physics. I tried searching for a decent text that describes biology and chemistry in terms of rudimentary physics but couldn't find...

I was wondering what is the best textbook for advanced physiology? I have read Guyton, but something more comprehensive would be nice. Any suggestions?

Need help with this question: Would parasympathetic stimulation of the heart affect the Starling relationship between end diastolic volume (EDV) and stroke volume (SV)? In other words, what would be expected to happen to the Starling Curve if you increased or decreased parasympathetic...

Do you believe genetics can cause one to have a particular accent in a given language? Or are accents only related to post-birth personal development? Are there ethnicities having anatomically distinct voice boxes, that have more difficulty in emulating specific accents? I tend to...

Homework Statement A patient with a renal disease had a plasma creatinine of 2mg/dl 6 months ago. Now, his plasma creatinine is 4mg/dl. Assuming steady state conditions and no changes in electrolyte intake or metabolism. Does the below increase(percent), decrease (percent), or remain the same...

Hey, I have two separate questions: 1) If one is moving in a car and throws a ball straight up, say out the sun roof, the ball will have zero velocity relative to an observer in the car. Conversely, it will have the velocity of the car to a stationary observer. How does one account for drag...

I posted this question in the physics forum with no luck, the concept has to do with physics but it's applications is within the body. It is found in the lung and also in venous return curves, when central venous pressure drops below 0. Basically, I am asking how the concept of zone 2 in the...

http://www.sciencemag.org/cgi/content/abstract/326/5951/404

I drink a fair bit (probably too much) but I always find that when I wake up the next morning I always have a hang-over (even if I didn't drink a whole lot) and, for me, it's always in the stomach. In movies/TV you always see people "needing a cup of coffee" or "an advil". To me those are...

I'm a first year student Anatomy & Physiology and this really got to. I have been in Chemistry for about two weeks now and really need some help with this one. Questions is: Which of these is the pH of an acid solution? A. pH 7.1 B. pH 7.0 C. pH 12.4 D. pH 6.9 E. pH 8.3 No...

Hello all. I just had a few conceptual problems if someone wouldn't mind explaining to me. When looking at a simple cell membrane, potassium ions tend to move out of the cell along their concentration gradient until its electrical gradient is strong enough to counterbalance it, thus...

Homework Statement List 2 enviromental events that might have triggered seed germination and growth into wild flowers The Attempt at a Solution I thought smoke from wild fires was a cue however I was told it has to do with the weather The wild flower part is throwing me off, how...

I'm new here and I am dumb as rocks in physics. I need a couple of semesters of physics for my degree. By the way my name is Jon. I am extremely happy I found this site! I never had a Physics course before last semester! Guess what happened? I failed it! It was only introductory physics...

nobelprize.org/nobel_prizes/medicine/laureates/2007/ "for their discoveries of principles for introducing specific gene modifications in mice by the use of embryonic stem cells" Mario R. Capecchi Sir Martin J. Evans Oliver Smithies

Can anyone recommend a good textbook on A&P? I've seen a few on amazon but it did not quite have a feel to it. Also the Schaum's outline of Human A&P 2nd edition is over 10 years old This one https://www.amazon.com/dp/0805359095/?tag=pfamazon01-20 looks promising. Anyone have anything...

Point of experiment was to see physiological role and influence of ACTH and Dexamethasone on adrenal gland via cholesterol extracted from gland. And we invested glucose level in blood after treatment. Cholesterol results were as expected, Dex treated animals had the highest amount of...