A meniscus is a critical shock absorber within the knee. This quiz/worksheet combo will help you test your knowledge of meniscus. The quick answer is the meniscus is a C-shaped piece of soft and fibrous cartilage, also known as fibrocartilage, that provides shock absorption and cushion to your knee. The meniscus is the curve seen at the top of a liquid in response to its container. If the molecules in the liquid are more attracted to the sides of the container than to each other, the liquid will stick to the sides of the container. Why doesn’t lightning travel in a straight line? A meniscus is the curved surface at the top of a column of liquid. This occurs between water and glass. A concave meniscus occurs when the molecules of the liquid are more strongly attracted to the container than to each other. Meniscus in Chemistry A concave meniscus forms when the liquid molecules are more attracted to the container via adhesion than to each other via cohesion. metalloid. ( Log Out / How to Read a Meniscus in Chemistry Liquids are difficult to measure with the naked eye due to surface tensions causing a meniscus to form on the circumference of the measuring object. Reading is aided by a white card – containing a dark area – placed in back of the meniscus. with a concave meniscus, measure the bottom of the meniscus and for convex meniscus, take the reading from the top of the meniscus. Again, the meniscus is a very important structure. Return to top of page. Change ), You are commenting using your Facebook account. Solubility. How many atoms are found in one molecule of sodium nitrate (NaNO3)? How it will be affected, I am not sure and this is what I was trying to figure out: compared to … How many signers of the Declaration of Independence became president? of liquid, it may be Concave or Convex depending that Liquid is Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. A meniscus is the curved surface at the top of a column of liquid. ( Log Out / Measure the meniscus at eye level from the center of the meniscus. You must get at eye-level with the meniscus to obtain an accurate reading. In that case, liquid appears to ‘stick’ from the edges forming a concave shape. Concave Meniscus (See diagram A) The curved upper surface of a column of liquid in a container. Most of the joints in our body are lined with a thin layer of articular cartilage, made of collagen and chondroitin. The three-dimensional shape of the meniscus is unusual and a bit hard to describe. To have an accurate reading you must read from the bottom of the curve (meniscus). Who was a pioneer in California’s aviation industry. It is also wedge-shaped which improves joint congruency, further adding to knee stability. The meniscus of a liquid is the upward or downward curve seen at the top of a liquid in a container. The key to getting an accurate reading, is to measure the center of the meniscus whether it be concave or convex. The meniscus can be either concave or convex, depending on the surface tension of the liquid and its adhesion to the wall of the container. A concave meniscus occurs when the particles of the liquid are more strongly attracted to the container (adhesion) than to each other (cohesion), causing the liquid to climb the walls of the container. The meniscus also provides stability within the knee. when it is poured into a container. A convex meniscus occurs when the liquid particles are more attracted to each other than to the walls of the container. the ability of one substance to dissolve in another at a given temperature and pressure. + the meniscus chemistry 23 Apr 2021 A patient with isolated patellofemoral arthritis typically describes anterior knee pain when rising from a seated position and/or … when work is done on a system by an external force, the system? However, before we explain why some liquid have a concave up meniscus while others share a concave down meniscus, we have to understand the adhesive forces at work of surface tension.Water, for example, is a polar molecule that … E.g. A meniscus is the gentle curve displayed at the top of a liquid when it is poured into a container. the ratio of the mass of a substance to the volume of the substance. the _________ meniscus is ____ % more injured than the _______. Change ), You are commenting using your Google account. No meniscus makes measuring very easy. A meniscus is a curve formed on the upper surface of a liquid inside a container. A convex meniscus appears when molecules of liquid are strongly attracted to each other rather than to the wall of container. A concave meniscus occurs when the molecules of liquid are strongly attracted to the container wall rather than to each other. The meniscus of a liquid is the upward or downward curve seen at the top of a liquid in a container. With most liquids, the attractive force between the liquid and the container is greater than the attraction between the individual liquid molecules. For example, water in some plastic cylinders. Why are inertial and gravitational mass the same? How can you prove that 2(√(2+√3)) = √6 + √2? Change ). meniscus : Definition: Search for: Biology Glossary search by EverythingBio.com : A concave surface of a liquid resulting from surface tension. When you put water in a beaker or test tube, you see a curved surface. the curved surface of a liquid in a container, which can be either in if the molecules of the liquid are attracted to the container or out if the molecules are attracted to each other (Definition of … What was the main purpose of the International Cotton Expositions held in Atlanta during the New South Era? Knee Meniscus. In a science class, this liquid is usually water or some sort of aqueous solution, and the column is usually a graduated cylinder or a pipet. The upper surface of a Liquid in a narrow tube is the Meniscus Parallax is a deceptive change of the position of an object which is observed while the position of the observer changes. (See diagram reading line in the diagram A and B). The meniscus of a liquid is the upward or downward curve seen at the top of a liquid in a container. As you may have noticed, when water is in such a thin glass tube, it does not have a flat surface at the top. This is the upward or downward curve at the surface of a liquid in a container. The meniscus is the curvature of a liquid's surface within a container, such as a graduated cylinder. In a science class, this liquid is usually water or some sort of aqueous solution, and the column is usually a graduated cylinder or a pipet. age 55+, not able to perform four steps, tenderness on fibular…. A longitudinal meniscal tear of the central segment that can d…. Search the Dictionary for More Terms. Concave Meniscus (See diagram A) This curve is formed by the surface tension between the liquid and the container holding the liquid. As you may have noticed, when water is in such a thin glass tube, it does not have a flat surface at the top. Risk factors for meniscal tears are. Make sure that you know the definitions of convex and concave meniscus … The bottom of the meniscus is normally read. When the card is held so that the white part is above the meniscus and the darkened portion is slightly below the meniscus, the meniscus will appear darkened and easier to observe.
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