AP Psychology

1. An electrical impulse that travels down a neuron's axon
3. Neurons that process information incoming and outgoing in the brain and spinal cord
4. A layer of fat and tissue encasing the axon that allows neural impulses to move at faster speeds
6. A molecule that can block action in neurotransmitters
7. An extension of the neuron to pass messages to other neurons or cells
9. Comprised of the brain and spinal cord
10. The basic cells that make up the nervous system
13. Neurons that carry messages from the brain to the body's muscles and glands
14. When a sending neuron reabsorbs a neurotransmitter
15. The junction between the axon and the dendrites of two neurons sending and receiving impulses
16. Cables of axons that connect the body to the central nervous system
17. A molecule that can increase action in neurotransmitters
20. A division in the peripheral nervous system that controls skeletal muscles

2. Neurons for senses and motor skills that connect the rest of the body to the central nervous system
5. The nucleus of a neuron is found here
8. Messengers that send chemicals across neurons and influence whether or not the next neurons will generate impulses
11. Neurons that carry messages from bodily tissues to the brain's receptors
12. A division in the peripheral nervous system that controls glands and internal organs
18. Extensions branching off of the neuron to receive messages from other neurons
19. Cells in the nervous system that support neurons and play a role in memory, learning, and thinking