| 单词 | hypertonic |
| 例句 | There is a name for what Sarah has, and it’s hypertonic pelvic floor muscle dysfunction. “Female Viagra” is long overdue: How the FDA’s double standard hurts women 2015-03-27T04:00:00Z Three terms—hypotonic, isotonic, and hypertonic—are used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. Concepts of Biology 2013-04-25T00:00:00Z Helman says some folks find that using a neti pot can cause ear discomfort, especially when using “hypertonic” saline, or saline with a high concentration of salt. Congested much? A neti pot might be the treatment for you. 2023-01-09T05:00:00Z When a more concentrated solution, a hypertonic solution, is injected, the cells lose water to the more concentrated solution, shrivel, and possibly die in a process called crenation. Chemistry 2019-02-14T00:00:00Z A cell placed in a solution with higher salt concentration, on the other hand, tends to make the membrane shrivel up due to loss of water into the hypertonic or “high salt” environment. Biology for AP Courses 2022-06-09T00:00:00Z Hypotonic, isotonic, and hypertonic are types of sports drinks. Writing Guide 2021-12-21T00:00:00Z In fact, the cytoplasm in plants is always slightly hypertonic compared to the cellular environment, and water will always enter a cell if water is available. Concepts of Biology 2013-04-25T00:00:00Z They are hypertonic, with arms and legs held stiffened by overly contracted muscles. The Forgotten Virus: Zika Families and Researchers Struggle for Support 2022-08-16T04:00:00Z Before equilibrium was reached, the solution with more sugar was hypertonic, or “above strength,” and the solution with less sugar was hypotonic, or “below strength.” Miller & Levine Biology 2018-01-01T00:00:00Z Figure 32.2 Cells placed in a hypertonic environment tend to shrink due to loss of water. Biology for AP Courses 2022-06-09T00:00:00Z Sports drinks can be divided into hypotonic, isotonic, and hypertonic. Writing Guide 2021-12-21T00:00:00Z If the plant cells become hypertonic, as occurs in drought or if a plant is not watered adequately, water will leave the cell. Concepts of Biology 2013-04-25T00:00:00Z In the beaker on the left, the solution on the right side of the membrane is hypertonic. Anatomy and Physiology 2013-06-19T00:00:00Z Because cells contain salts, sugars, proteins and other dissolved molecules; they are almost always hypertonic to fresh water. Miller & Levine Biology 2018-01-01T00:00:00Z When they move to a hypertonic marine environment, these fish start drinking sea water; they excrete the excess salts through their gills and their urine, as illustrated in Figure 32.3b. Biology for AP Courses 2022-06-09T00:00:00Z Now, 15 years later, looking back with more knowledge and expertise, I see that this patient clearly had hypertonic pelvic floor muscles secondary to anxiety and fear. Addressing Cultural Bias in Medicine 2018-11-27T05:00:00Z I have a hypertonic pelvic floor that has caused me significant pain since my early twenties, and I am currently receiving treatment from a competent, compassionate, and trained pelvic floor physical therapist. Pelvic Massage Can Be Legitimate, but Not in Larry Nassar’s Hands 2018-01-31T05:00:00Z Cells in a hypertonic solution will shrivel as water leaves the cell via osmosis. Anatomy and Physiology 2013-06-19T00:00:00Z The terms isotonic, hypertonic, and hypotonic refer the “strength,” or concentration, of the sugar solute, not the water. Miller & Levine Biology 2018-01-01T00:00:00Z The processes of diffusion, osmosis, and active transport ensure that the urine excreted from the body is hypertonic, thus preventing dehydration. Biology for AP Courses 2022-06-09T00:00:00Z During their one of their daily treatments, the kids wear a vibrating vest that shakes them to break up the mucus in their lungs while inhaling hypertonic saline. Camps take cystic fibrosis patients surfing 2014-08-17T04:00:00Z A bipolar field has a hypertonic pole or centre of concentration, and a hypotonic pole or centre of dilution. The Mechanism of Life Figure 3.8 Concentration of Solutions A hypertonic solution has a solute concentration higher than another solution. Anatomy and Physiology 2013-06-19T00:00:00Z It is obvious that the sea-urchin egg is injured in the process of membrane-formation and that the subsequent treatment with a hypertonic solution only acts as a remedy. Darwin and Modern Science What is most likely to happen if Paramecia are moved from a hypertonic solution to solutions of decreasing osmolarity? Biology for AP Courses 2022-06-09T00:00:00Z We have thus two poles of diffusion of contrary signs, a hypotonic pole at the water drop, and a hypertonic pole at the salt drop. The Mechanism of Life These particles are drawn along with the water stream which passes from the hypotonic centres or regions toward those which are hypertonic. The Mechanism of Life When immersed in a hypertonic solution, it retracts; in a slightly hypotonic solution it absorbs water and becomes turgescent, while in a very hypotonic solution it swells up and bursts. The Mechanism of Life Those eggs which form membranes begin to develop, but perish if they are not treated with hypertonic sea-water. Darwin and Modern Science When a cell is placed in a hypertonic solution, water leaves the cell because the cell has a higher water potential than the extracellular solution. Biology for AP Courses 2022-06-09T00:00:00Z During a surgical operation it is of the first importance not to injure the living surfaces by flooding them with strongly hypertonic or hypotonic solutions. The Mechanism of Life The concentration of the solution is increased, the osmotic pressure is raised, and we have a hypertonic centre of diffusion. The Mechanism of Life In a hypertonic solution it loses weight in consequence of a loss of water, which passes from the muscle into the solution to equalize the osmotic pressure. The Mechanism of Life Some of the other eggs, however, which do not form membranes, develop directly into normal larvae without any treatment with hypertonic sea-water, provided they are exposed to the blood for only a few minutes. Darwin and Modern Science In fact, the cytoplasm in plants is always slightly hypertonic to the cellular environment, and water will always enter a cell if water is available. Biology for AP Courses 2022-06-09T00:00:00Z The magnitude of the dihedral angles, from which radiate three and occasionally four walls, depends on the position of the hypertonic poles of diffusion. The Mechanism of Life If in the saline solution we place a coloured isotonic drop between two coloured hypertonic drops, all the figures and movements of karyokinesis appear successively in their due order. The Mechanism of Life On either side the pigment of the central drop has been drawn towards the hypertonic centre nearest to it. The Mechanism of Life The slightness of the cytolytic effect allows the egg to develop without treatment with hypertonic sea-water. Darwin and Modern Science In a hypertonic solution, water leaves a cell and the cell shrinks. Biology for AP Courses 2022-06-09T00:00:00Z The method depends on the principle that solutions isotonic to the blood corpuscles and to the blood serum will not alter the volume of the blood corpuscles, whereas hypertonic solutions decrease that volume. The Mechanism of Life On the right a grain of salt forming a hypertonic pole of concentration, on the left a drop of blood forming a hypotonic pole of dilution. The Mechanism of Life Between isotonic solutions the surface is plane, whilst it is curved between solutions of different osmotic pressures, the convexity being directed towards the hypertonic solution. The Mechanism of Life The writer believes that the subsequent treatment of the egg with hypertonic sea-water is needed only to overcome the destructive effects of this partial cytolysis. Darwin and Modern Science Conversly, if the plant is not watered, the extracellular fluid will become hypertonic, causing water to leave the cell. Biology for AP Courses 2022-06-09T00:00:00Z In a hypertonic solution the red blood cells retract and fall to the bottom of the glass, the rapidity with which they are deposited depending on the amount of retraction. The Mechanism of Life By analogy with the magnetic and electric fields we may designate the hypertonic pole as the positive pole of diffusion, and the hypotonic as the negative pole. The Mechanism of Life We have seen that a centre of catabolism is a hypertonic focus of diffusion. The Mechanism of Life When comparing two solutions of different concentration, the solution with the higher osmotic pressure is said to be hypertonic, and that with the lower osmotic pressure hypotonic. The Mechanism of Life Saltwater fish live in the reverse environment, which is hypertonic to their cells, and they secrete salt through their gills and excrete highly concentrated urine. Biology for AP Courses 2022-06-09T00:00:00Z |
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