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# Nervous System Notes **Date:** Nov 2024 **1. Background** * **Brain Localization:** Broca's Area, Wernicke's Area, Temporal Lobe, * **Surgical Techniques:** Lobotomy (brief, technical description) **2. Anatomy** * **Central Nervous System (CNS):** * **Brain:** Cerebrum * **Spinal Cord...

# Nervous System Notes **Date:** Nov 2024 **1. Background** * **Brain Localization:** Broca's Area, Wernicke's Area, Temporal Lobe, * **Surgical Techniques:** Lobotomy (brief, technical description) **2. Anatomy** * **Central Nervous System (CNS):** * **Brain:** Cerebrum * **Spinal Cord:** Spinal Cord * **Cranial Nerves:** (12) * **Spinal Nerves:** (31) * **Somatic Nervous System:** Voluntary movements * **Autonomic Nervous System:** Involuntary movements * **Sympathetic Nervous System:** Fight-or-flight response, adrenaline release * **Parasympathetic Nervous System:** Rest-and-digest response, contrasts with sympathetic **3. Neuronal Communication** * **Different cell types:** * **Neurons:** Functional unit of the nervous system * **Structure:** Unipolar, Bipolar (diagrams shown) * **Function:** Sends electrical signals * **Neuroglia:** Supporting cells * **Function:** Support and protection of neurons, removing waste * **Types:** Microglia (immune cells, removing debris, combatting infections) * **Motor neurons:** (efferent), transmit signals to muscles and glands * **Sensory neurons:** (afferent), transmit signals from sensory receptors to the central nervous system * **Interneurons:** connect neurons within the brain and spinal cord **4. Synapses** * **Synapses:** Junctions between neurons that transmit signals * **Chemical transmission:** Release of neurotransmitter molecules across the synapse. **5. Other** * **Cerebral asymmetry:** Features of brain asymmetry, described * **Brain plasticity:** Ability of the brain to change, described. * **Corpus Callosum:** Structure connecting the left and right hemispheres of the brain * **Functional Areas of the Brain**: Different brain lobes and their functions **Note**: This is based on the image's content. Some information is a brief description, and not exhaustive. Specific details such as specific cases, or exact technical anatomical jargon may be lacking or missed due to the nature of the image provided.