HI310 Lecture 7: Chapter-9-The-Brain-and-Cranial-Nerves
24 Jan 2019
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Chapter 9 - the brain and cranial nerves. The cerebrum is the larges tpart of the brain. It is divided into right and left cerebral hemispheres by a deep goorve called the longitudinal fissure. The diencephalon is the area between the cerebral hemispheres and the brain stem. The brain stem connects the cerebrum and the diencephalon with the spinal cord. The superior portion of the brain stem is the midbrain. The cerebellum is located immediately below the posterior part of the cerebral hemispheres and is connected with the cerebrum, brain stem, and spinal cord by means of the pons. The meninges are three layers of connective tissue that surround both the brain and spinal cord to form a complete enclosure. The outermost of the membranes, the dura mater, is the thickest and toughest of the meninges. Around the brain, the dura mater is in two layers, and the outer layer is fused to the bones of the cranium.
