1. The ability to store relate and record information comes from the expanded cerebral cortex.
2. Sciatica → Brain stem: People who suffer from sciatica have problems with motor movements
3. Sensory → Thalamus: Responsible for interpreting sensory messages, such as touch, received from the body
4. Sensory → Diencephalon: The plethora of communicating pathways between these structures and other parts of the body makes the diencephalon a functionally diverse area
5. Transection → Brain: The degree of neurological compromise corresponds with the degree of cord transection. In partial transection, there may still be some retained sensory-motor function while incomplete transaction there is a complete loss of function
6. Arachnoid layer → Cerebrospinal fluid: Acts as a cushion to the brain
7. Dura Mater → Blood supply: Dura mater surrounds and supports the large venous channels (dural sinuses) carrying blood from the brain toward the heart
8. Cerebrum → Stroke: two-thirds of strokes occur in the cerebrum, the largest and uppermost portion of the brain. Its outer layer of gray matter, known as the cerebral cortex, is the center of conscious thought, perception, voluntary movement, and integration of all sensory input
9. The primary function of CSF is to cushion the brain within the skull and serve as a shock absorber for the central nervous system
10. Cerebellum → Ataxias: Failure of muscle control in the arms and legs that result in movement disorders.
11. Functions of the Nervous System
11.1. Sensory input
11.2. Integration
11.3. Motor input
12. Spinal Cord
12.1. Sensory (afferent)
12.2. Motor (efferent)
12.3. Reflexes and reflex arc
12.4. Dermatome
12.5. Ramus
12.5.1. Dermatome has spinal nerves while the ramus and plexus are spinal nerves
12.6. Plexus
12.7. Spinal cord diseases/disorders
12.7.1. Transection
12.7.2. Sciatica
12.7.2.1. Sciatic nerve
12.7.2.1.1. Longest and widest nerve in the human body, running from the lower back, through the buttocks, and down the legs, ending just below the knee
12.7.2.1.2. Controls several muscles in the lower legs and supplies sensation to the skin of the foot and the majority of the lower leg
13. Meninges
13.1. Dura Mater (tough mother)
13.2. Arachnoid layer
13.3. Pia Mater (delicate mother)
14. Cerebrospinal fluid
15. Brain
15.1. Brain stem
15.1.1. Medulla
15.1.1.1. Located at the base of your brain, where the brain stem connects the brain to your spinal cord. It plays an essential role in passing messages between your spinal cord and brain
15.1.2. Pons varolli
15.1.2.1. Links the medulla oblongata and the thalamus, whose primary function is to regulate breathing, sleeping etc.
15.1.3. Midbrain
15.2. Diencephalon
15.2.1. Thalamus
15.2.2. Hypothalamus
15.2.2.1. Part of the brain that has a vital role in controlling many bodily functions including the release of hormones from the pituitary gland
15.3. Cerebrum
15.3.1. Cerebral cortex
15.3.1.1. The thin layer of the brain that covers the outer portion (1.5mm to 5mm) of the cerebrum, covered by the meninges and often referred to as gray matter
15.3.2. Corpus callosum
15.3.2.1. A large, C-shaped nerve fiber bundle found beneath the cerebral cortex, that stretches across the midline of the brain, connecting the left and right cerebral hemispheres
15.4. Cerebellum
15.5. Blood supply
16. Diseases/disorders
16.1. Ataxias
16.2. Alzheimer's disease
16.2.1. Typically destroys neurons and their connections in parts of the brain involved in memory, including the entorhinal cortex and hippocampus
16.2.2. It later affects areas in the cerebral cortex responsible for language, reasoning, and social behavior
16.3. Dyslexia
16.3.1. A person with a dyslexic brain has a different distribution of metabolic activation than the brain of a person without reading problems when accomplishing the same language task
16.3.2. There is a failure of the left hemisphere rear brain systems to function properly during reading
16.4. Strokes
16.4.1. Blocked or ruptured artery