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Musculosketal/Nervou
| Term | Definition |
|---|---|
| Osteoporosis | A disease where bones become weak and brittle due to loss of bone mass. |
| Arthritis | Inflammation or degeneration of one or more joints, causing pain, swelling, and stiffness |
| Tendon | Fibrous connective tissue that attaches muscle to bone or other structures, transmitting force for movement. |
| Ligament | Fibrous connective tissue that connects bone to bone, maintaining stability of joints |
| Femur | The longest, strongest bone in the body (thigh bone), connects hip to knee, contains red and yellow marrow |
| Neuron | Nerve cell that transmits electrical impulses; essential components include axon, dendrites, terminals |
| Synapse | Junction between neurons (or neuron and effector) where signals pass via neurotransmitters across a small gap. |
| Meninges | Three protective layers (dura mater, arachnoid mater, pia mater) enveloping the brain and spinal cord |
| Cerebellum | Brain region located below and behind the cerebrum; coordinates balance, posture, and voluntary motion. |
| Ganglion | Cluster of nerve cell bodies in the peripheral nervous system, acting as relay or processing centers |
| Retina | Light-sensitive tissue lining the back of the eyeball; converts light into electrical signals sent via optic nerve |
| Cochlea | Spiral, fluid-filled inner ear structure containing the organ of Corti that converts sound waves into nerve impulses. |
| Olfactory bulb | Brain structure above the nasal cavity that receives and processes smell information from the nose |
| Papillae | Small projections on the tongue containing taste buds; aid in gustation through taste receptors |
| Cornea | Clear, dome-shaped front surface of the eye; refracts light and provides a protective barrier. |