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Nervous System Prof. Abdulameer Al-Nuaimi E-mail: [email protected] E. mail: [email protected] Nervous System Autonomic Nervous System Autonomic nervous system Medial side of the cerebral hemisphere Showing the Hypothalamus which is the higher centre for autonomic nervous system Neuron Neuron Neurons Synapse Longitudinal fissure Cerebral hemisphere Cerebral Hemispheres Lateral sulcus Cerebral hemisphere Motor and sensory areas on the cerebral cortex Lobes of Cerebrum Ventricles of the brain Functions of Cerebrospinal Fluid 1-Delivers nutrients from blood to the brain and spinal cord 2-Protects the brain and spinal cord 3-Removes the wastes from the brain and spinal cord 4-Shock absorber that reduces trauma. Meninges of the brain and spinal cord Meninges of the brain Meninges of the brain and spinal cord Pia mater Choroid plexus Subarachnoid space Blood superior Sagittal sinus Arachnoid villi LV 3V Interventricular foramen Cerebral Aqueduct 4 V Brain Stem 8 12 5 5 Peripheral Nervous System 1 Cranial Nerves Midbrain Pons Medulla oblongata Cranial Nerves Number: 1 Olfactory nerve Type: Sensory Function: Sense of Smell Number: 4 Trochlear nerve Type: Motor Function: Eye movements, proprioception Number: 2 Optic nerve Type: Sensory Function: Vision Number: 5 Trigeminal nerve Type: Mixed Function: Sensations of the head and face, chewing movements, and muscle sense Number: 3 Oculomotor nerve Type: Motor Function: Raise eyelids, move eyes, regulate the size of pupils, focus of lenses. Number: 6 Abducent nerve Type: Motor Function: Produce movements of the eyes Number: 7 Facial neve Type: Mixed Function: Facial expressions, secretion of saliva, taste. Number: 10 Vagus nerve Type: Mixed Function: Transmit impulses to muscles associated with speech, swallowing, the heart, Number:8 Vestibulocochlear n smooth muscles of visceral Type: Sensory organs in the thorax, and Function: Balance or equilibrium abdomen. sense. Hearing. Number:11 Accessory Nerve Number:9 Glossopharyngeal n Type: Motor Type: Mixed Function: Turning movements of Function: Taste and other the head, movements of the sensations of tongue, shoulder and viscera, voice swallowing, secretion of saliva, production. aid in reflex control of blood Number:12 Hypoglossal n pressure and respiration. Type: Motor Function: Tongue movements
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