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science quiz 2013-14
nervous system
Question | Answer |
---|---|
What are the functions for the nervous system? | 1. receives and sends info about activities monitors body temperature |
What is the structure and what is it made of? | brain spinal chord and nerves and they are made of nurons |
what are nurons | neurons are the basic unit of structure and cannot be replaced like other cells the function is that it carries messages |
cell body | receives and sends incoming messages |
dentrites | carry messages to cell body |
axon | carries messages away from the cell bodies |
axon terminals | fibers at the end of the axon |
synapse | the space between two neurons |
what are the types of neurons and how many are there? | there are three and the names are sensory/motor/and interneurons. |
what does the sensory neurons do? | they are the neurons that carry messages to the brain. |
what do the motor neurons do? | they carry messages to the rest of the body. |
what are interneurons? | they carry messages between the sensory and motor neurons. |
what are nerve impulses? | they are messages sent through the body. |
what is their basic path? | sensory->inter->motor neurons |
what are the divisions of the nervous system | Central/peripheral and /autonitic |