01 Oct A physician must administer an anesthesia directly to the CNS via the vertebral column. How many layers of the meninges must be punctured to do so?
Your Answers:
See the image below.
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A physician must administer an anesthesia directly to the CNS via the vertebral column. How many layers of the meninges must be punctured to do so?
One layer to introduce the anesthesia to the subarachnoid space
None to introduce the anesthesia to the epidural space
Three to introduce the anesthesia directly to the spinal cord
Two layers to introduce the anesthesia to the subarachnoid space
All of the following are typical characteristics of neurotransmitters except
they are released in response to stimulation.
they are synthesized by a presynaptic neuron.
they bind to specific receptors on the postsynaptic cell.
they are released into the bloodstream before reaching the postsynaptic cell.
This image shows a neuron.
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A bird hits the windshield of your car, and you reflexively duck and close your eyes. Which of the following is responsible for this action?
Superior colliculi
Medulla
Thalamus
Reticular formation
If the charge difference across the plasma membrane is decreased,
the membrane potential is more positive.
the potential difference across the plasma membrane does not change.
the change is called hyperpolarization.
negative proteins can leave the cell.
This is a midsagittal section of the right half of the brain in medial view.
Match A in the drop down.
Match B in the drop down.
Match C in the drop down.
Match D in the drop down.
Match E in the drop down.
Which of the following cranial nerves does not innervate the tongue?
Hypoglossal
Accessory
Facial
Glossopharyngeal
