The wet surfaces of the alveoli stick together primarily due to surface tension, which is the tendency of liquid surfaces to shrink and minimize their area. This surface tension is caused by the cohesive forces between water molecules lining the alveoli. To counteract this, the alveoli produce a substance called surfactant, which reduces surface tension and prevents the alveoli from collapsing, allowing for efficient gas exchange during respiration.
Alveoli can stick together due to surfactant deficiency, which reduces the surface tension that helps keep the alveoli open. In conditions such as acute respiratory distress syndrome (ARDS), pneumonia, or pulmonary fibrosis, the lack of surfactant can cause alveolar collapse and adhesion. This can lead to difficulty in breathing and impaired gas exchange in the lungs.
surfactant
Sticky is a term used to describe something that adheres or sticks to surfaces. It typically refers to a tactile sensation when something is sticky to the touch, such as adhesive residues or certain substances that can coat surfaces and cause them to stick together.
A balloon will stick to surfaces that are smooth and have a slight static charge, such as walls, glass, plastic, and certain types of fabric. The static electricity in the balloon can cause it to cling to these surfaces temporarily.
Yes, there is usually friction when two surfaces in contact move in the same direction. The friction force opposes the motion between the two surfaces, which can cause them to slide or stick together depending on the conditions.
Water molecules are both cohesive and adhesive: they can stick together or stick to other surfaces.
The force caused by tiny collisions and micro welds that hold surfaces together is called adhesion force. It is the attraction between molecules on different surfaces that causes them to stick together.
The force caused by tiny collisions known as microelds on surfaces that are stuck together is called adhesion. This force occurs due to the molecular interactions between the surfaces, causing them to stick together.
Steel nails or screws can be magnetized and are commonly used to stick wood together by creating a magnetic bond with other metal surfaces or materials.
The main function of glue is to join or bond two surfaces together. Glue works by creating a strong adhesive bond between the surfaces, allowing them to stick together firmly. Glue can be used for various applications, including crafts, woodworking, and repairs.
Snowflakes stick together due to a process called "riming." When two snowflakes come into contact, supercooled droplets in the air freeze onto their surfaces, forming a bond between them. This causes them to stick together and form larger snowflakes or snowflakes clusters.
Tape tends to stick best to smooth, clean surfaces like glass, metal, or plastic. These surfaces provide the best contact for the adhesive to adhere to, allowing the tape to stick for a longer period of time. Rough or dirty surfaces may cause the tape to lose its stickiness more quickly.