Human Physiology wiz needed 21. A person who suffers from emphysema will exhibit

Question

Human Physiology wiz needed

21. A person who suffers from emphysema will exhibit signs of A) respiratory acidosis. B) respiratory alkalosis. C) metabolic acidosis. D) metabolic alkalosis. E) None of the answers are correct 22. A person who suffers from hyperventilation will exhibit signs of A) respiratory acidosis. B) respiratory alkalosis. C) metabolic acidosis. D) metabolic alkalosis. 23. Prolonged vomiting of the stomach's contents can result in A) respiratory acidosis. B) respiratory alkalosis. C) metabolic acidosis. D) metabolic alkalosis E) None of the answers are correct. When the plasma concentration of a substance exceeds its renal concentration, more of the substance will be A) filtered. B) reabsorbed C) secreted. D) excreted. 24) 25. Which of the following is a characteristic of slow-twitch oxidative skeletal musele fibers? A) long contraction duration only B) few mitochondria only C) high capillary density only D) long contraction duration and high capillary density E) long contraction duration, few mitochondria, and high capillary density 26. Within a single fiber, the tension developed during a twitch depends upon the A) amplitude of the action potential. B) length of the sarcomeres prior to contraction. C) length of the thick filament. D) duration of the stimulus 27) If blood flow through the afferent arterioles increases A) stretch reflexes trigger vasoconstriction to reduce the flow. B) the smooth muscle in the vessel walls stretches to accommodate the increased flow.

Explanation / Answer

21) Respiratory acidosis

Emphysema is caused when the Alveolar lungs are destroyed making breathing difficult. It increases the amount of carbon dioxide in the blood and increases the acidity of blood. This can cause by smoking or exposure to second hand smoking, exposure to outside pollution.

22) Respiratory alkalosis.

Hyperventilation is a condition in which the person suffers from short of breath which results in the nauseas, dizziness, fainting, tingling. With short of breath the person inhales more oxygen and releases more carbon dioxide which changes the blood pH.

23) Metabolic alkalosis.

Constant vomiting of stomach contents causes los of food contents and enzymes which makes the stomach environments more alkaline causes metabolic alkalosis.

24) Secreted

    The concentration in the of plasma increases with waste material it gets secreted in renal and its concentration increases.

25)   Long contraction duration and high capillary density

26) the length of the sarcomeres prior to contraction

27) the stretch triggers further relaxation of the arteriolar wall, lessening blood pressure

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