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Science Quiz 630s
"Terms to Learn"
Question | Answer |
---|---|
Central Nervous System(CNS) | Nervous system that includes you brain, spinal cord, and medulla |
Peripheral Nervous System(PNS) | Nervous system that includes your communication pathways, or nerves |
Nerves | Axons bundled together with blood vessels and connective tissue |
Neurons | Specialized cells that transfer messages throughout your body in the form of fast-moving electrical energy |
Dendrites | Give information to neurons from these short branched extensions |
Axon | How information is transmitted to other cells, a fiber |
Axon Terminal | The tip of every branch on an axon |
Impulses | Electrical messages that pass along the neurins |
Receptors | Sensory Neurons that have specialized dendrites that detect changes inside and outside the body |
Motor Neurons | Neurons that send impulses from the brain and spinal cord to other systems |
Brain | Part of your CNS, the nervous systems largest organ, had 100s of different jobs |
Cerebrum | Larges part of brain, where you think and where most memories are stored, it controls voluntary movements and allows you to detect touch, light, sound, odors, taste, pain, heat, and cold |
Hemispheres | The two haves of the brain |
Left Hemisphere | Controls right side of the body |
Right Hemisphere | Controls left side of the body |
Cerebellum | Part of brain that receives sensory impulses from skeletal muscles and joints |
Medulla | Part of brain that connects the brain to the spinal cord |
Vertebrae | Rounded protective bones that surround the spinal cord |
Reflex | A quick involuntary action |