Check Your Understanding Questions
1
.
Describe the purpose of the circle of Willis.
2
.
Describe the functions of the different areas of the brain: the four lobes of the cerebrum, the brainstem, and the cerebellum.
3
.
Why is it important to perform a head CT prior to the initiation of tissue plasminogen activator (tPA)?
4
.
Describe a thunderclap headache.
5
.
How might a craniectomy help a patient who had a hemorrhagic stroke?