What is the purpose of mastication?
A) to eliminate undigested food wastes from the body
B) to propel food from one digestive organ to the next
C) to transport nutrients into the blood and lymph
D) to chew, grind and tear food into smaller pieces while in the mouth
E) to move food back and forth along the walls of the small intestine
D
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Which is the correct order in the flow of tears?
a) Lacrimal gland, lacrimal sac, lacrimal duct, superior or inferior lacrimal canal, nasolacrimal duct, nasal cavity b) Lacrimal gland, lacrimal duct, superior or inferior lacrimal canal, nasolacrimal duct, lacrimal sac, nasal cavity c) Lacrimal gland, lacrimal duct, nasolacrimal duct, superior or inferior lacrimal canal, lacrimal sac, nasal cavity d) Lacrimal gland, lacrimal duct, superior or inferior lacrimal canal, lacrimal sac, nasolacrimal duct, nasal cavity e) Lacrimal gland, lacrimal sac, nasolacrimal duct, superior or inferior lacrimal canal, lacrimal duct, nasal cavity
Extracellular fluid
a. includes plasma b. includes interstitial fluid c. constitutes a smaller percentage of total body water than does intracellular fluid d. includes lymph e. has all of the above characteristics
A conscious but combative patient with severe facial trauma is fully immobilized on a backboard. During your assessment, the patient begins coughing up large amounts of blood. You suction his oropharynx, but his mouth quickly refills with blood. You should:
A) preoxygenate the patient with a bag-mask for 2 minutes and then perform nasotracheal intubation. B) roll the backboard on its side, suction his oropharynx, and prepare to perform pharmacologically assisted intubation. C) alternate suctioning of his oropharynx for 15 seconds and assisting ventilations for 2 minutes until his airway is clear of blood. D) continually suction his oropharynx until it is clear of blood, apply oxygen via nonrebreathing mask, and administer a sedative drug.
If two cranial bones are joined by overlapping beveled edges they are adjoined by which type of suture?
A. Lap B. Serrate C. Butt D. Plane