Answer:
Explanation:
Left coronary artery - divides into two branches (the circumflex artery and the left anterior descending artery). Left anterior descending artery (LAD) - supplies blood to the front and bottom of the left ventricle and the front of the septum. Pulmonary veins - bring oxygen-rich blood back to the heart from the lungs.
Answer:
The most correct answer is: It varies in consistency based on the amount of protein fibers and fluid
Explanation:
The extracellular matrix (ECM) is the environment surrounding cells, which is normally composed by fibers (i. e.: collagen, elastin, etc...), soluble proteins and other macromolecules (such as hyaluronic acid) embedded in fluid. The relative concentration and composition of those components conditions, among other things, the physical consistency of the ECM.
- No blood vessel arises from ECM; they derive from specific precursor cells. Additionally, cartilage is an avascular (has no blood vessel) type of connective tissue.
- ECM does provide oxygen and nutrients to diverse tissue, including bone, however bone tissue <em>does</em> have blood vessels.
- Neuronogenesis (generation of new neurons) takes place within the developing nervous system, with neuronal precursor cells being thoroughly surrounded by other cells such as radial glia. Typically, neighboring ECM has a minor or negligible role in this process.
There are two possible causes of metabolic alkalosis such as ,firstly loss of stomach acids which is most common cause of metabolic alkalosis ,secondly reduced volume of blood in the arteries.
Metabolic alkaloiss is developed by body when it loses too much acid or gains too much base then excess vomiting which causes electrolyte loss, adrenal disease ,loss of potassium or sodium in a short amount of time.
Concomitant NH4+ losses in the diarrhea fluid may also contribute to development of metabolic alkalosis when hyperchloremic acidosis caused by the loss of too much sodium bicarbonate from the body which can happen with severe diarrhea.
To learn more about the metabolic alkalosis here
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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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