Cranial Cavity, Venous Sinuses and Brain - LO 2
2. What are the major parts of the brain?
Cerebrum: The cerebrum is the largest component of the brain, and consists of the R & L cerebral hemispheres (separated by the longitudinal cerebral fissure) and basal ganglia. The cerebral lobes (frontal, parietal, temporal, and occipital) do not correspond precisely with the similarly named bone.
Brainstem: The brainstem consists of the midbrain, pons, and medulla oblongata. Midbrain is the most proximal portion of the brainstem, pons is intermediate, and medulla oblongata is the most distally-oriented.
Cerebellum: The cerebellum is inferior to the cerebrum and posterior to the brainstem. Similar to the cerebrum, the cerebellum has two hemispheres connected by the vermis.
Hypophysis (pituitary gland): Hypophysis is located within the hypophyseal fossa of the sphenoid bone. This gland is continuous with the infundibulum, a component of the hypothalamus.