Explanation:
a. Nasal cavity: the epithelium in this zone is meant to provide a physical barrier to the invasion of microorganism or particles, it also secretes and remove mucus and foreign particles, these epithelial cells are also involved in the igE producing process (perpetuating allergic responses. <em>The nose is the first barrier to the air that enters our body, that's why the epithelial cells in this zone focus in filtering foreign particles. </em>
b. Bronchiole: epithelium is ciliated and no ciliated, it becomes cuboidal in smaller passages as it continues to branch. The no ciliated cells, also known as club cells are the ones that produce surfactant. <em>Since bronchioles are passages to direct the air to the alveoles epithelial cells in this zone have adapted to go from larger branches to smaller ones to reach the alveoli. </em>
c. Alveolus: it's composed of two types of cells, type one, that constitute the air-blood barrier and type two, cells that produce surfactant to reduce surface tension to keep the alveolus shape when breathing.<em> Since alveoli's function is to allows oxygen/carbon dioxide to move between bloodstream the epithelial cells in this organ evolved to cover this job.</em>
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Answer:
It is the course that a nerve impulse follows as it makes its way through the nervous system.
Explanation:
These paths enable sensory signals (much like electrical charges) to be sent from one section of the nervous system to another by transferring between each neural cell membrane.
Answer:
The answer to the question: In what part of the spinal cord would you expect to find myelinated axons, would be, in the white matter of the spinal cord.
Explanation:
The spinal cord, the roadway and connection between the brain and the rest of the body, and a vital part of life itself, is formed by covering tissue, fluid, and most importantly, by the neuronal bodies and axons that form the entire system of the CNS, and ANS, and which also connect these systems with the PNS (peripheral nervous system), and the different organs. One visual characteristic of the cord is it having two colors, white and gray. The white matter surrounds the gray matter. The reason for this white color in the white matter, which is really the connecting filaments that go up and down the CNS, and connect with the gray matter, is that white matter neurons and axons are covered by myelin, an insulating and cushioning covering that surrounds the cell´s axons and also helps the nerve impulses move much faster and with higher precision, than in the white matter.
Answer:
Loop of Henle lenght
Explanation:
Juxtamedullary nephrons have a longer loop of Henle that cortical nephrons and as we know this loop has a great function reabsorving water, the longer it is more water is reabsorved. The descending portion of the loop is permeable to ions but not to water so this portion reaborves a great quantity of water. Then in the ascending loop is the opposite, it is permeable to water but not to ions. The ions reabsorved in the ascending loop (20-25% of the Na+) are responsable of the water reabsorved in the descending loop. The longer the loop is more water and ions are reabsorved.
