Which of the following is NOT typically true about G proteins?
A. They act as second messengers.
B. They can be stimulatory for second-messenger production.
C. They can be inhibitory for second-messenger production.
D. They can act as transducers for activated receptors by opening or closing ion channels.
A
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Which of the following is NOT a common characteristic of dermatomes?
a) Can be used clinically to determine area of spinal cord damage b) Each dermatome is only served by a single spinal nerve c) Complete anesthesia of a single dermatome often requires blocking three adjacent spinal nerves d) Dermatomes are designated based on the cranial or spinal nerve that serves that area of the skin e) The dermatome serving the face is supplied by the trigeminal cranial nerve
Which vessel(s) in the diagram are the vasa recta?
a) C b) D c) E d) M e) L
Name the layer labeled E
a) Submucosa b) Serosa c) Longitudinal muscle d) Mucosa e) Circular muscle
The corticospinal system controls fine, discrete, voluntary body movements
Indicate whether the statement is true or false