The brain is a delicate organ but it is protected by _____ and _____ (citation required). The brain is organized into four regions: _____, _____, _____, and _____ (citation required). The hindbrain and the brainstem _____ (citation required). The midbrain _____ (citation required). The forebrain includes the hypothalamus, the thalamus, the pineal body, and the cerebrum. The cerebrum is divided into four distinct lobes and two hemispheres. Of these, the frontal lobe is responsible for _____ functions, the parietal lobe is responsible for _____ functions, the temporal lobe is responsible for _____ functions, and the occipital lobe is responsible for _____ functions (citation required). Distinct from the spinal cord, the brain is serviced by __ pairs of nerves that include the optic nerve and the nerves responsible for tongue movement and hearing and balance (citation required).