Answer the following question given this paragraph: 20.3 | Capillary Exchange By the end of this section, you will be able to: Identify the primary mechanisms of capillary exchange Distinguish between capillary hydrostatic pressure and blood colloid osmotic pressure, explaining the contribution of each to net filtration pressure Compare filtration and reabsorption Explain the fate of fluid that is not reabsorbed from the tissues into the vascular capillaries The primary purpose of the cardiovascular system is to circulate gases, nutrients, wastes, and other substances to and from the cells of the body. Small molecules, such as gases, lipids, and lipid-soluble molecules, can diffuse directly through the membranes of the endothelial cells of the capillary wall. Glucose, amino acids, and ionsincluding sodium, potassium, calcium, and chlorideuse transporters to move through specific channels in the membrane by facilitated diffusion. Glucose, ions, and larger molecules may also leave the blood through intercellular clefts. Larger molecules can pass through the pores of fenestrated capillaries, and even large plasma proteins can pass through the great gaps in the sinusoids. Some large proteins in blood plasma can move into and out of the endothelial cells packaged within vesicles by endocytosis and exocytosis. Water moves by osmosis. Q: How do glucose, ions, and other larger molecules leave the blood? Choices: - through cell membranes - through capillary tips - through veinous fissures - through intercellular clefts A:
through intercellular clefts
Answer the following question given this paragraph: Figure 42.5 In response to a cut, mast cells secrete histamines that cause nearby capillaries to dilate. Neutrophils and monocytes leave the capillaries. Monocytes mature into macrophages. Neutrophils, dendritic cells and macrophages release chemicals to stimulate the inflammatory response. Neutrophils and macrophages also consume invading bacteria by phagocytosis. Q: In response to a cut, mast cells secrete histamines that cause nearby capillaries to do what? Choices: - harden - narrow - constrict - dilate A:
dilate
Q: Answer the following question given this paragraph: Electronic components are the parts used in electronic devices such as computers. The components transmit and change electric current. They are made of materials called semiconductors. Q: The electronic components in electronic devices, used to transmit and change electricity are made of? Choices: - resistors - inverters - microchips - semiconductors A:
A: semiconductors
Question: Answer the following question given this paragraph: Thoracic Vertebrae The bodies of the thoracic vertebrae are larger than those of cervical vertebrae (Figure 7.26). The characteristic feature for a typical midthoracic vertebra is the spinous process, which is long and has a pronounced downward angle that causes it to overlap the next inferior vertebra. The superior articular processes of thoracic vertebrae face anteriorly and the inferior processes face posteriorly. These orientations are important determinants for the type and range of movements available to the thoracic region of the vertebral column. Thoracic vertebrae have several additional articulation sites, each of which is called a facet, where a rib is attached. Most thoracic vertebrae have two facets located on the lateral sides of the body, each of which is called a costal facet (costal = "rib"). These are for articulation with the head (end) of a rib. An additional facet is located on the transverse process for articulation with the tubercle of a rib. Q: Most thoracic vertebrae have two facets that articulate with the head of what structure? Choices: - calf - heart - pelvic - rib A:
Answer: rib
*Question*
Answer the following question given this paragraph: Fluid friction is friction that acts on objects that are moving through a fluid. A fluid is a substance that can flow and take the shape of its container. Fluids include liquids and gases. If you've ever tried to push your open hand through the water in a tub or pool, then you've experienced fluid friction. You can feel the resistance of the water against your hand. Look at the skydiver in the Figure below . He's falling toward Earth with a parachute. Resistance of the air against the parachute slows his descent. The faster or larger a moving object is, the greater is the fluid friction resisting its motion. That's why there is greater air resistance against the parachute than the skydiver's body. Q: What is friction that acts on objects that are moving through a fluid? Choices: - fluid catalyst - fluid temperature - mass friction - fluid friction A:
**Answer**
fluid friction
(Question)
Answer the following question given this paragraph: nylon: Human-made fabric. Material is made from hydrocarbons found in petroleum products. It is found in a number of plastic utensils. Taking advantages of its strength and light weight, nylon is a component of ropes, fishing nets, tents, and parachutes. Q: What strong and lightweight manmade material is derived from hydrocarbons and used in ropes, tents and parachutes? Choices: - styrofoam - cellophane - aluminum - nylon A:
(Answer)
nylon