Nervous System ANAT test

Identify the 8 cranial bones of the skull.

Cranial Stutures

• The frontal and parietal bones? Coronal

• The parietal and occipital bones? Lambdoid

• Between parietal bones? Sagittal

Cranial fossa

Anterior, middle, and posterior.

Identify cranial foramina associated with cranial nerves and blood supply

• Carotid canal

• Foramen magnum

• Corpus collosum

• Thalamus

• Hypothalamus

Corona radiata

Cerebral peduncles

Brain stem

• Olive

• Pyramids

• Mid brain

• Pons

• Medulla oblongata

• Superior (visual) and inferior (auditory) colliculi

What is ‘closed’ vs ‘open’ medulla referring to?

The "open" medulla is where the fourth ventricle opens, forming the dorsal surface, while the "closed" medulla is where the fourth ventricle is surrounded by the medulla, and the central canal is still enclosed. 

Circle of Willis

• 3x cerebral arteries – which regions of the cortex do they supply?

• 3x cerebellar arteries.

• 3x communicating arteries.

• 3x ‘other’ arteries (basilar, vertebral, ICA)