Across
- 3. A sudden, involuntary contraction of the muscles usually caused by a disruption of the normal electrical patterns of the brain. This is a symptom, not a disease in itself.
- 5. A seizure disorder caused by breakdowns in the natural electrical patterns of the brain
- 8. An instrument that traces electrical patterns in the brain
- 11. iron Similar in appearance to a crowbar, a specialized tool for gunpowder blasting in construction work before the invention of dynamite
- 13. lobe The middle portion of the cortex at the top of the head
- 14. The inability to speak usually caused by injury or disease
- 15. fissure The space that divides the left and right hemispheres of the cortex.
- 17. A swollen pocket in tissue where dead bacteria and immune cells collect during an infection
- 18. A large tribe of related bacteria. These are pathogenic, meaning they cause disease, usually through wound infections or food poisoning.
- 20. lobe The part of the cortex at the front of the brain
- 21. A dead body donated for dissection
- 22. stem The bottom part of the brain that links to the spinal cord and controls such involuntary functions as breathing, heart rate, and reflex reactions.
- 23. A large family of pathogenic bacteria that can infect, among other systems, the lungs and the digestive tract. When this virus infects red blood cells, it can cause scarlet and rheumatic fevers.
- 24. The tiny space between the axon of one neuron and the connecting dendrite of another. These are bridged by chemical messengers called neurotransmitters.
Down
- 1. aphasia The inability to understand speech, usually the result of brain damage to Wernicke's area on the temporal lobe of the cortex
- 2. A crane for lifting heavy objects
- 4. lobe The part of the cortex on the side of the head
- 6. Chemical signals that carry nerve impulses across the synapses between neurons
- 7. Broca's area on the brain's frontal lobe
- 9. A physiological state in which body temperature falls well below normal
- 10. lobe The part of the cortex at the back of the head
- 12. A nerve cell that transmits electrical or chemical impulses
- 16. Extremely small living things composed of one or a few cells that can be seen through a microscope
- 19. acid A strong, corrosive chemical poison once used as a disinfectant
- 25. A severe bacterial infection