18. Which of the following are ways materials leave the blood? A enst B) endocyt

Question

18. Which of the following are ways materials leave the blood? A enst B) endocytosis C) plasma leaking from the vessels D) two of the above E)all the above 19. Which of the following keeps the lymph moving through the lymph systens? s) he skeletal muscles pushing on the outside of the lymph vessels b) semilunar valves thal prevent lymph from moving away from the heart c) muscular contractions of the vessels d) two of the above e) all the above 20. Which of the following is a function of the lymph nodes? a) returning glucose that leaves the capillaries back to the blood b) transporting fats absorbed from the digestive tract c) disposal of foreign particles and cellular debris d) two of the above e) all the above 21. Pulse is a direct measure of A) blood pressure B) cardiac output C) stroke volume D) breathing rate E) heart rate 22. An animal has a cardiac output of 40 mUmin (milliliters per minute) and a stroke volume of 5 mL. What is its heart rate? A) Heart rate cannot be determined with only these two variables. B) 200 beats/minute C) 12.5 beats/minute D) 8 beats/minute 23. Which of the following components of the plasma are involved in maintaining the osmotic balance of fluids between the tissues and the blood? A) dissolved gases B) hormones C) inorganic ions D) two of the above E)all the above 24. Which of the following is the final stage in the formation of a blood clot? A) fibrin 25. Which of the following produce thromboplastin to stimulate the continuing formation 26. A boy falls while riding his bike. A scrape on his hand almost immediately begins to B) thrombin C) prothrombin D) Ca E) thromboplastin e) platelets of a blood clot? a) basophils b) lymphocytes c) neutrophils d) monocytes bleed and becomes red, warm, and swollen. What response is oc response B) inflammatory response C) autoimmune response D) lytic response 27. Which of the following release histamine as part of the inflammatory response? E) all the above B) mast cells C) eosinophils D) two of the above A) damaged tissue A) It is a normal, healthy, 28. Which of the following is true of the allergic response? adaptive response to an allergen B) Upon the very first exposure to an allergen, an allergy sufferer will probably experience a runny nose, watery eyes, and mild wheezing C) Allergies are most common in people also responding to infections of intestinal worms D) Sufferers produce the IgE class of gamma globulins in response to allergens 29. Which of the following is the most important barrier to pathogen entry in humans and E) the secretion of B) the skin C) the cuticle many other animals? A) the mucus coat lysozyme

Explanation / Answer

18. Answer is "A" : fenestrae, in this method rapid exchange of molecules between capillaries and surrounding tissues takes place.

19. Answer is "C" : Lymph moment is based on its own muscle contractions.

20. Answer is "C" : Lymph nodes plays a key role in disposal of foreign particles, This is the main reason for swelling of lymph glands at the time of infection.

21. Answer is "E" : pulse is direct measure of heart rate.

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