Homo Sapiens. Страница 10
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@sapiens_tg
Здесь собрано: самое смешное и позитивное видео интернета😀📹 🚫Все права на видео принадлежат их владельцам Instagram: https://www.instagram.com/zaxodi_esli_hto?r=nametag Реклама: @News24lmk Простите за рекламу. Она необходима для развития проекта.
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Homo Sapiens
The deltoid ligament A rather atypical victim of our failed attempts to overcome the bumps... A deltoid ligament sprain is an unusual type of ankle ligament sprain. A deltoid ligament sprain or tear results from turning the ankle inward (pronation). The medial ligament is stronger than the lateral ligament - this strength makes it less likely to deform or tear. -
Homo Sapiens
Our bodies are under our control! Of course, there are processes beyond our control and there are a great many of them. But there are amazing "strings" that we can "pull”. For example, we can arbitrarily control some mental functions! Like, verbal repetition and mental inversion of visual images. That is, we can imagine a beautiful palm tree with coconuts and turn it upside down in our imagination. Moreover, we can add an infinite number of completely irrational details to this mental image. During these imaginative motor, spatial (parietal) and visual cortical areas are activated🧠 Since these tasks are performed arbitrarily, control seems to belong to the prefrontal areas. -
Homo Sapiens
Does the brain get tired from intellectual work? Well, if we look at the question from a purely technical point of view, no. The composition of the blood flowing through the brain doesn't change during mental work. Our "decision-making center" is not like a muscle🙌🏻. However, in the process of intellectual work, the brain actively consumes fuel - glucose. And when the "wood for the fire" is no longer enough, we begin to experience exhaustion. Reduced glucose levels cause ATP levels to rise, which blocks dopamine (the hormone that makes us feel good and keeps us motivated). However, after a while our brain automates any activity and it begins to require less and less energy. For example, if you get to work the same way every day, this activity will consume less energy. This also works with the development of COGNITIVE FUNCTIONS! -
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Homo Sapiens
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Homo Sapiens
The intestine appears like a real gem. You look at the microphotographs and you get this impression! Immunofluorescence staining of the small intestine showing macrophages (yellow), cell membrane (turquoise), and nuclei (purple). 
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Homo Sapiens
The disease, impossible to cure, there is only a chance to slow it down It is worth saying that many diseases fit this description, but today we will talk specifically about ... 👉🏻Alzheimer's disease. To date, there are no effective medications that can slow the inexorable progression of this disease. Nor are there preventive medical methods like vaccination. Why can't a cure be found? Because humanity does not yet have a clear understanding of the mechanism by which Alzheimer's disease develops. All we know is that it is caused by an abnormal accumulation of proteins in and around the brain cells. They form "plaques" around the brain cells and "tangles" within them. Such sketchy knowledge only provides an opportunity to slow down the disease. -
Homo Sapiens
Exquisite art inside the NFT — the next generation of the metaverse! Let us introduce the NFT-monkeys & punks killer — @ton_nft_concept_eng. Professional artists tackled the development of the enigmatic CONCEPT project, which embodies real art, and generates the next level of NFT. — Each NFT is the result of years of experience by pro artists; — The actual value of each work is millions of dollars; — Philosophy that overturns the familiar conception of the metaverse. Wow: @ton_nft_concept_eng 
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Homo Sapiens
Aortic valve stenosis or aortic stenosis A pathology in which the lumen of the aortic valve of the heart narrows☝🏻 The valve does not open fully, which reduces or blocks blood flow from the heart to the main artery (aorta) and to the rest of the body. Aortic stenosis is most often caused by calcium buildup on the aortic valve over time. These calcium deposits, which often appear with age, make the valve tissue stiff, narrow, and unyielding. -
Homo Sapiens
Hepatocytes are the most important cells in our body As you can guess from their name and animation, they are found in the liver. Hepatocytes are involved in almost every function of this organ - detoxification, carbohydrate metabolism, lipid metabolism, albumin secretion, blood clotting factors and complement. All this is "placed on the shoulders" of these cells☝🏻 -
Homo Sapiens
Why are our pupils round? Why aren't they narrow and oblong, like cats🤔, for example? Of course, there are good reasons for this peculiarity! The vertical shape of the pupils is provided by two muscles (not one, as with us) and is necessary for better vision at night. Yes, it's that trivial. And, for example, the square or rectangular shape of pupils in cloven-hoofed animals is necessary to increase the degree of vision. They can see objects in a radius of about 320 to 340 degrees! But for humans, none of these features are vital. We can see 160-210 degrees and have average vision in the dark🙌🏻 -
Homo Sapiens
Prokaryotes and eukaryotes Three letters that divide the living world into two universes. Prokaryotes are single-celled living organisms that do not have a formalized cell nucleus and cell organelles. This type of organism includes bacteria and archaea. Eukaryotes - the cells of these organisms have formalized, envelope-limited nuclei. More importantly, these nuclei contain DNA. Plants, fungi, animals, and of course humans are all eukaryotes. -
Homo Sapiens
Nucleic acids assemble like a puzzle☝🏻 Somehow it even resembles a binary code. Nucleic acids, or polynucleotides, are high-molecular-weight organic compounds that ensure the storage and transmission of genetic information in living organisms from generation to generation. They are the building blocks of DNA and RNA. The sequence of nucleotides in nucleic acids determines their primary structure. It is encoded into our genes and is built from five amino acids - their first letters are shown above in the animation. Guanine (G), cytosine (C), adenine (A) and thymine (T) to build DNA, and uracil (U) to build RNA. Without these five amino acids, humans would not exist🙌🏻 -
Homo Sapiens
Atherosclerosis - the main source of vascular problems Most pathologies of the peripheral arteries are in one way or another associated with the formation of atherosclerotic plaques. They interfere with the normal blood supply to tissues, can provoke local inflammation, and can simply break off, becoming a deadly embolus. Still, not all arterial diseases are related to excess cholesterol👇🏻 For example, endarteritis (most commonly found in the lower extremities). A pathology that develops due to dystrophy of nerve endings, leading to excessive narrowing of the vascular lumen. At the initial stage of endarteritis tissues from oxygen starvation are saved by collaterals - small vessels that bypass the "main highway". However, later they also begin to spasm (narrowing). Then a person begins to feel coldness in the legs, increased fatigue, limping, and soon pain, which will gradually intensify. -
Homo Sapiens
The largest gland in our body is... The liver! Why is it considered a gland? It's simple - it secretes the most important substances for the body. Vitamins, proteins, lipids, enzymes and many others. In addition, the liver acts as the main protector of the person. It is this large digestive gland that daily guards health, protecting the body from poisons and other harmful substances. -
Homo Sapiens
Dear followers, we open sales of ads on our channel now If you are interested, please, contact @relevant_theory -
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Homo Sapiens
Human cells are so similar and so different All basic structures are identical: nucleus, mitochondria, ribosomes, Golgi apparatus... But it's all in the details! Cells with common structure and function form tissues which can be very different. For example, skin is a tissue. But so is tissue the brain, muscles, and even the surface of plant leaves. -
Homo Sapiens
One of the most amazing properties of our heart Absolute synchronicity! The contraction of the different parts of this eternal motor and the work of its valves are amazingly accurately interconnected - to a fraction of a second. Atrial contraction lasts 0.1 second and ventricular contraction about 0.3 second. And, for example, if there is a noticeable shift in one of these numbers and it is not coordinated with all the other rhythms - the work of the heart will be disturbed because of which the tissues somewhere will not receive oxygen🙌🏻 -
Homo Sapiens
How to create a Top Telegram channel and make 4 office salaries on it? The hard way: 1. Take out a big loan. 2. Try to promote the channel from scratch The easy way: 1. Buy a successful ready-made channel. 2. Receive money immediately after purchase! Telespace Marketplace is a place with proven channels for sale, which are already generating income. No cheaters are not allowed here - only safe transactions under the supervision of a reputable guarantor 95% of newbies lose their budget for nothing, stop with this nonsense! Scroll through the Telespace Marketplace, choose a channel after your heart, and welcome to the admins' hangout. 