Anatomy.Chapter.12 Word Scramble
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| Question | Answer |
| cells that send and receive signals | neurons |
| cells that support and protect neurons | neuroglia (glial cells) |
| Spinal Cord and brain | Central nervous system (CNS) |
| Neural tissue outside the spinal cord and brain | peripheral nervous system (PNS) |
| bundles of axons with connective tissues and blood vessels. Carry sensory information and motor commands in PNS | Nerves |
| nerves that connect to the brain | cranial |
| nerves that attach to the spinal cord | spinal |
| carries sensory information from PNS sensory receptors to CNS | Afferent division |
| carries motor commads from CNS to PNS muscles and glands | Efferent division |
| detect changes or respond to stimuli. Neurons and specialized cells. eyes, ears | receptors |
| respond to efferent signals. cells and organs | effectors |
| controls skeletal muscle contractions; voluntary and involuntary muscle contractions | Somatic nervous system (SNS) |
| controls subconscious actions: contractions of smooth muscle and cardiac muscle and glandular secretions | Autonomic Nervous system (ANS) |
| has a stimulating effect | sympathetic division |
| has a relaxing effect | parasympathetic division |
| area where a neuron communicates with another cell | synapse |
| contributes to half the volume of the nervous system | neuroglia |
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