Select the correct statement regarding epithelia.
A) Simple epithelia form impermeable barriers.
B) Stratified epithelia are tall, narrow cells.
C) Stratified epithelia are present where protection from abrasion is important.
D) Pseudostratified epithelia consist of at least two layers of cells stacked on top of one another.
C) Stratified epithelia are present where protection from abrasion is important.
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________, or pinkeye, results from damage to or irritation of the conjunctival surface
A) Fuch's dystrophy B) Conjunctivitis C) Glaucoma D) Myopia E) Uveitis
Which of the following effectors would NOT be activated as described below in response to hypovolemic shock?
a) Adrenal cortex releases aldosterone. b) Kidneys conserve salt and water. c) Heart rate increases. d) Systemic arterioles vasodilate. e) Heart contractility increases.
In addition to GH, other hormones including the following are essential for normal growth:
a. insulin b. thyroid hormone c. androgens d. estrogen e. all of these answers.
Harry suffers from cystic fibrosis and has severe breathing difficulties. His problems result from
A) inability of the respiratory defense mechanism to transport mucus. B) uncontrollable laryngospasms. C) production of thick secretions that are difficult to transport. D) both the inability of the respiratory defense mechanism to transport mucus and the production of thick secretions that are difficult to transport. E) All of the answers are correct.