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Nervous System
Structures and functions of the brain and nervous system
| Question | Answer |
|---|---|
| What are the two locational systems within the nervous system? | Central Nervous System Peripheral Nervous System |
| What is the purpose of the central nervous system, and what structures does it contain? | Contains the brain and spinal cord. 1)The strutural and functional center of nervous system. 2) Integration of sensory information, evaluates it and initiates outgoing response. |
| What strucutrs make up the peripheral nervous system? | Any nerves that lie in the outer regions of the nervous system. |
| What are the two divisions of the nervous system? | 1)Afferent Division 2)Efferent division |
| What are the systems of the nervous system that are defined by the organs they contain? | 1) Somatic 2)Autonomic 3)Viseral (sensory) |
| What is the function of the somatic nervous system? | Carries information to somatic effectors in skeletal muscles. |
| What is the function and divisions of the autonomic nervous system? | 1) Sympathetic: "flight or fight" 2)Parasympathetic: "rest and relax" |
| What is the function of the visceral nervous system? | Has enteric centers in abdominal wall that regulates digestive function. |
| What are the types of central glia and what are their functions? | 1)astrocytes: transfer nutrients from blood to nuerons. 2)Microglia: Carry on phagocytosis in brain tissue.3)Ependymal cells: Reassemble epithelial cells in fluid filled cavities of CNS. 4)Ogliodendrocytes: hold nerve fibers together and create |
| What are the peripheral glia and what is their function? | 1)Schwann cells: form myeline sheaths and support nerve fibers. 2)Satellite cells: cover and support cell bodies in the PNS. |
| What are neurons? | Neurons are excitable cells that initiate and conduct impulses that perform all nervous system functions. |
| What are the structural classifications of neurons? | Multipolar, bipolar, unipolar |
| What are the functional classifications of neurons? | Afferent/Sensory, Efferent/Motor |
| What are the three meninges in the brain? | 1)Dura mater 2)Arachnoid mater 3)Pia mater |
| What is the function of cerbrospinal fluid? | Provides support and cushion and serves as a reservoir for circulating fluid. |
| What three structures make up the brainstem? | Medulla oblongata, pons, and midbrain. |
| What are the functions of the brainstem? | Performs snsory, motor and reflex functions. |
| What are the functions of the cerebellum? | 1)Acts a cerebral cortex to produce coordinated skeletal movements. 2)Control muscles used for balance. 3)Controls posture. 4)Processes sensory information. |
| What structures make up the diencephalon? | Thalamus, hypothalamus, optic chiasma, and pineal gland. |
| What are the structures of the cerebrum? | Cerebral cortex, gyri, sulci, fissures. |
Created by:
hannah.gelles
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