Problems in balance may follow trauma to which nerve?
A) trigeminal
B) vestibulocochlear
C) abducens
D) accessory
B
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The parotid glands are
A. the largest salivary glands. B. under the tongue. C. the smallest salivary glands. D. in the lower jaw.
The following steps occur in rods when they are excited by photons of light
1. Ganglia cells detect changes in bipolar cell activity. 2. Neurotransmitter release changes. 3. Retinal changes to a more linear form. 4. Rhodopsin breaks down (bleaches). 5. Opsin changes the membrane permeability of the outer segment to Na+. 6. Opsin activation occurs. What is the proper sequence for these steps? A) 1, 6, 5, 2, 4, 3 B) 3, 6, 5, 2, 1, 4 C) 6, 3, 5, 2, 1, 4 D) 3, 6, 5, 1, 2, 4 E) 1, 3, 4, 5, 6, 2
Which of the following statements is TRUE?
A. Phosphorylation by protein kinases can stimulate or inhibit the activity of effector proteins. B. Ca2+ is not a second messenger. C. Phosphodiesterase converts GMP into cGMP D. Conversion of ATP to cAMP is a phosphorylation reaction. E. Phospholipase C converts ATP to cAMP.
In order for thrombin to be formed:
a. fibrinogen must be present b. sodium must be present c. potassium must be present d. calcium must be present