5 Written Questions
5 Matching Questions
- reticular formation
- resting potential
- all-or-none law
- a refers to the fact that when a neuron fires the signal goes all the way and at full strength
- b the brain area just at the top of the spinal cord where the brain and spinal cord meet. it includes a number of regions responsible for basic body functions.
- c the process that occurs as positively charged sodium ions enter a neuron and the inside of the cell becomes more positively charged
- d the electrical charge on the inside of a neuron at rest. It measures precisely -70 millivolts
- e an area in the brainstem that keeps one awake and attentive to things in the environment
5 Multiple Choice Questions
- the white, fatty substance that surrounds portions of the axon of a neuron
- first described neurons through drawings, calling them "butterflies of the soul"
- the feeling that persists in a limb that has been amputated. This demonstrates that the sense of feeling is in the brain
- a system of glands located throughout the body that secrete chemicals (hormones) into the bloodstream, often influencing moods and behaviors
- a rare genetic disorder that causes a person's hypothalamus to malfunction. the sufferer has an insatiable appetite, always feeling hungry. Other problems include shortness, low muscle tone, and mental retardation
5 True/False Questions
central nervous system → the brainstem and spinal cord
terminals → the branches at the end of the axon of a neuron that send a chemical signal to a muscle, an organ, or to another neuron
amygdala → a brain area located at the end of the hippocampus that is a center for emotions such as fear and anger
semipermeable → the surface membrane of a neuron is so called because some things can enter it and some things can enter it and some cannot
limbic system → the brain area just at the top of the spinal cord where the brain and spinal cord meet. it includes a number of regions responsible for basic body functions.