Answer:
it is very easy...Go through your Science text book
C) would be the answer. I just did a test w/ this question and I picked C) and got !00%
Ectopic focus or ectopic pacemaker happens when an excitable group of cells outside the normal sinoatrial node causes premature heartbeat. Sinoatrial node (SA node) is the pacemaker of the heart. Most people experience ectopic focus but persistent occurrence may need the client/patient to visit the doctor. If a client or patient complains of ectopic focus, it is better to consider his/her activity before visiting the clinic. Ask, for example if the client/patient had a vigorous exercise because it might be causing the irregular heartbeat, how often is he/she experiences such irregularity in his/her heartbeat (acute ectopic foci is usually non-life threatening, however, chronic type requires medical help), his/her lifestyle (he/she might be using illegal drugs, smokes and/or drinks alcohol,had too much coffee etc). Again, history taking is very vital.
<h2>Function of Macrophages</h2>
Explanation:
- <em>Macrophages are effector cells of the</em> <em>innate immune system</em> that phagocytose microscopic organisms and emit both expert incendiary and antimicrobial middle people
- The <em>macrophages </em>assume a significant role in wiping out <em>unhealthy and harmed cells through their customized cell death </em>
- <em>Macrophages </em>are produced through the separation of <em>monocytes</em>, which transform into <em>macrophages when they leave the blood</em>
- There are two kinds of tissue macrophages such as <em>macrophages that live inside explicit organs/tissue (free macrophages and fixed macrophages) and macrophages</em> got from monocytes in response to inflammatory stimuli
