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Unit 2 pt 2
| Term | Definition |
|---|---|
| Hormones | Chemical messengers that are produced by the endocrine glands and carried by the bloodstream to all the body |
| Central Nervous System | Brain and spinal cord |
| Peripheral Nervous System (PNS) | The sensory and motor neurons that connect the central nervous system to the rest of the body |
| Somatic Nervous System | The division of the peripheral nervous system that controls the body's skeletal muscles |
| Autonomic Nervous System | The part of the peripheral nervous system that controls the glands and the muscles of the internal organs |
| Sympathetic Nervous System | The division of the autonomic nervous system that arouses the body, mobilizing its energy in stressful situations |
| Parasympathetic Nervous System | The division of the autonomic nervous system that calms the body, conserving its energy after stressful situations |
| Brainstem | Responsible for automatic survival functions |
| Medulla | The base of the brainstem; controls heartbeat and breathing |
| Pons | Sleeping and dreaming |
| Reticular formation | Role in controlling arousal and sleep-wake cycle |
| Thalamus | The brains sensory and control center (no smell) |
| Cerebellum | Balance and coordination |
| Amygdala | Linked to aggression and fear |
| Hypothalamus | Directs several maintenance activities (eating, drinking, body temperature), helps govern the endocrine system via the pituitary gland, and is linked to emotion and reward |
| Hippocampus | Helps process explicit memories for storage |
| Frontal lobes | Personality, intelligence, and the voluntary controlled muscle |
| Parietal lobes | Process sensory info (taste, touch, temp) |
| Occipital lobes | Visual processing |
| Temporal lobes | Hearing, language processing, and memory |
| Motor Cortex | Controls voluntary movements |
| Somatosensory Cortex | Registers and processes info on touch, temperature, pain, and pressure |
| Association Areas | Higher mental functions such as learning, remembering, thinking, and speaking |
| Split Brain | Isolates the brains two hemispheres by cutting the corpus callosum connecting them |
| Electroencephalogram (EEG) | Electronic activity |
| Positron Emission Tomography (PET) | A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task |
| Magnetic Resonance Imaging (MRI) | A technique that uses magnetic fields and radio waves to produce computer-generated images of brain anatomy |
| Functional MRI (fMRI) | MRI scan that shows brain function |
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id184871
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