Across
- 4. A bundle of neural fibers that connects the brain's two hemispheres
- 7. Chemical messenger manufactured and secreted by the endocrine glands
- 8. A statistical formula that provides a percentage of variation in a population of variation in a population attributable to genetic factors
- 11. The process by which new neurons are generated
- 12. Immature cells that have a potential to develop into almost any type of cell
- 14. The subdivision of the autonomic nervous system that is responsible for arousing the body
- 17. The interconnected group of forebrain structures involved with emotions, drives, and memory
- 18. The basic building cell of the nervous system
Down
- 1. A part of the limbic system that system that controls emotions and the formation of emotional memory
- 2. The small brain structure beneath the thalamus that helps govern drives and hormones
- 3. A chemical messenger released by neurons that travels across the synapse and allows neurons to communicate with one another
- 4. The hindbrain structure responsible for coordinating fine muscle movement, balance, and some perception and cognition
- 5. A long tube like structure that conveys impulses away from a neuron's cell body toward other neurons
- 6. The branching fibers of neurons that receive neural impulses from other neurons and convey impulses toward the cell body
- 9. A segment of DNA that occupies a specific place on a particular chromosome
- 10. Involved in respiration, movement, waking, sleep, and dreaming
- 13. A gap between the axon tip and the cell body of the receiving neuron
- 15. The part of the nervous system consisting of the brain and spinal cord
- 16. The subdivision of the autonomic nervous system that is responsible for calming the body and conserving energy
- 19. An innate automatic response to a stimulus that has a biological relevance for an organism