Atropine is a drug that can be used to dry up excess mucus secretions. What cells in mucous membranes are affected? Predict the effect of atropine on the functioning of mucous membranes
What will be an ideal response?
Mucus is produced by goblet cells in mucous membranes. Atropine prevents those goblet cells, which are unicellular exocrine glands, from secreting mucus. Mucus is a thick, sticky liquid secreted to protect the underlying epithelium. With less mucus, inhaled debris may affect the respiratory tract or acidic contents may affect the epithelia of the stomach or urinary bladder.
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A surgeon opens her patient by cutting the integument parallel to the cleavage lines of the dermis (tension lines). This will result in ________
A) slowed healing and grater scaring B) faster healing of the skin and less scaring C) greater chance of infection D) less chance for infection
If one pair of electrons is unequally shared between two atoms, a ________ occurs
A) single nonpolar covalent bond B) double nonpolar covalent bond C) double polar covalent bond D) single polar covalent bond E) hydrogen bond
What is the role of the adipose tissue in the epidural space?
A) The adipose tissue conducts nerve impulses. B) The adipose tissue in the epidural cushions dura mater and protects the nerves and blood vessels that it surrounds. C) The adipose tissue of the epidural space produces myelin. D) There is no known function of the adipose tissue in the epidural space.
In this sagittal section showing the upper respiratory tract, what number indicates a nasal concha?
A. 1 B. 2 C. 3 D. 4 E. 5