CLAS 1111 Lecture Notes - Lecture 9: Dura Mater, Peripheral Nervous System, Vagus Nerve
Document Summary
Central nervous system consists of the brain and spinal cord. Peripheral nervous system consists of nerves outside the brain and spinal cord. Cell body: also known as soma, contains cell nucleus. It"s the first part to receive nervous impulses. Synapse: space through which a nervous impulse travels between nerve cell. Nerve: bundles of dendrites and axons that travel together like strands of rope. Afferent cells: carry messages towards the cns (brain and spinal cord). Efferent nerve: carry messages away from the cns (brain and spinal cord). Ganglion: large network of nerves in the peripheral nervous system. Cerebell/o: cerebellum cerebr/o: cerebrum (posterior part of the brain that coordinates muscle movements and maintains balance) Pont/o: pons (bridge connecting various parts of the brain. Anterior to the cerebellum and between the medulla and the rest of the midbrain) Dur/o: dura mater (outermost)- very think and tough.