Epithelial tissue covers the body surface and forms the lining for most internal cavities. The major function of epithelial tissue includes protection, secretion, absorption, and filtration. The skin is an organ made up of epithelial tissue which protects the body from dirt, dust, bacteria and other microbes that may be harmful. Cells of the epithelial tissue have different shapes as shown on the student's worksheet. Cells can be thin, flat to cubic to elongated. Cited from: https://www.msnucleus.org/membership/html/k-6/lc/humanbio/4/lchb4_3a.html
We get tired after exercise because our muscle fibers get tired very quickly. This is due to the major source of energy for the muscle tissue, called adenosine triphosphate, or ATP. As the muscles make use of this supply of energy, they get tired and fatigue.
Answer:
ardiorespiratory endurance is the level at which your heart, lungs, and muscles work together when you're exercising for an extended period of time. This shows how efficiently your cardiorespiratory system functions, and is an indicator of how physically fit and healthy you are.
Explanation:
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Asthma- A condition in which a person's airways become inflamed, narrow and swell, and produce extra mucus, which makes it difficult to breathe.
Asthma attack- Called an asthma exacerbation, the airways become swollen and inflamed. The muscles around the airways contract and the airways produce extra mucus, causing the breathing (bronchial) tubes to narrow.
During an attack, you may cough, wheeze and have trouble breathing. Symptoms of a minor asthma attack get better with prompt home treatment. A severe asthma attack that doesn't improve with home treatment can become a life-threatening emergency.
Answer:
Transport the patient by ambulance, monitor closely and administer fluids en route.
Explanation:
The rate of a normal resting heartbeat is 60 to 100 per minute. The atria (the two smaller chambers of the heart) contract simultaneously and so does the ventricles (the two largest chambers). This mechanism causes the “double beat” characteristic of the heart: tummy, tummy… Exercise, emotional stress and even stimulating drugs can increase the heart rate to 200 or more beats and cause the heart to beat too fast. When this happens we call it tachycardia.
In the case of the man shown in the question, tachycardia occurs because of the ingestion of caffeinated soda. Although tachycardia is normal for those who use this type of substance, if the heart beats too fast it can lead to congestive heart failure and even myocardial infarction. For this reason, the ideal thing to do for this man is to transport him in an ambulance, closely monitor him and administer fluids on the way, as fluids can adjust the heart rate.
