Dura Mater
Which layer of dura is adherent to bone?
Endosteal dura
What does the superior sagittal sinus course along?
Which two arteries form the Circle of Willis?
- internal carotid arteries
- vertebral arteries
What are gyri vs sulci?
- gyri: elevations
- sulci: depressions
What are ventricles considered by definition?
Identify all 3 dural folds.
- falx cerebri
- falx cerebelli
- tentorium cerebelli
The inferior sagittal sinus ends by draining into which sinus?
Sigmoid sinus
Transverse foramina
Tentorium cerebelli is located in the same place as which fissure?
What is the function of the choroid plexus and what is it composed of (2)?
- Filters CSF from blood in ventricles
- Ependymal cells & capillaries
At which features of the cerebrum do dural folds form?
At fissures
Venous sinuses are what by definition?
Veins without valves
The Circle of Willis forms which 3 types of arteries?
- anterior cerebral arteries
- middle cerebral arteries
- posterior cerebral arteries
What does the lateral sulcus separate?
The temporal lobe from the rest of the cerebrum
Identify the 3 types of ventricles in the brain?
- lateral ventricles
- third ventricles
- fourth ventricle
Which dural fold splits the cerebellum into right and left hemispheres?
Falx cerebelli
What do venous sinuses drain out of the cranial cavity (2 things)?
- deoxygenated blood
- used CSF
Which feature of the cerebrum do middle cerebral arteries course within?
Lateral sulcus
The post central gyrus is considered what?
The sensory relay center
How many foramen of Magendie vs Luschka are there?
- 1 foramen of Magendie
- 2 lateral foramen of Luschka
Which dural folds course along the midsagittal plane? (2)
- falx cerebri
- falx cerebelli
What does the sigmoid sinus become after exiting the cranial cavity?
Internal jugular vein
What is the Circle of Willis considered by definition?
Identify all of the hormones released from the anterior versus posterior pituitary gland.
- Anterior pituitary: FSH, LH, ACTH, TSH, MSH, PRL, Endorphins, GH
- Posterior pituitary: oxytocin, vasopressin
Where does all CSF eventually end up?