click below
click below
Normal Size Small Size show me how
U2L15
AP Biology B
| Question | Answer |
|---|---|
| A fiber composed primarily of the bundled axons of PNS neurons. | Nerves |
| An age-related dementia (mental deterioration) characterized by confusion and memory loss. | Alzheimer’s disease |
| A progressive brain disease characterized by difficulty in initiating movements, slowness of movement, and rigidity. | Parkinson’s disease |
| A severe mental disturbance characterized by psychotic episodes in which patients have a distorted perception of reality. | Schizophrenia |
| The capacity of a nervous system to change with experience. | Neural plasticity |
| A structure in the temporal lobe of the vertebrate brain that has a major role in the processing of emotions. | Amygdala |
| A group of neurons in the hypothalamus of mammals that functions as a biological clock. | Suprachiasmatic nucleus (SCN) |
| Part of the vertebrate hindbrain located dorsally; functions in unconscious coordination of movement and balance. | Cerebellum |
| A weblike system of neurons, characteristic of radially symmetrical animals, such as hydras. | Nerve net |
| The narrow cavity in the center of the spinal cord that is continuous with the fluid-filled ventricles of the brain. | Central canal |
| Regions of dendrites and clustered neuron cell bodies within the CNS. | Gray matter |
| Tracts of axons within the CNS. | White matter |
| One of three divisions of the autonomic nervous system; generally increases energy expenditure and prepares the body for action. | Sympathetic division |
| One of three ancestral and embryonic regions of the vertebrate brain; develops into the medulla oblongata, pons, and cerebellum. | Hindbrain |
| A collection of structures in the vertebrate brain, including the midbrain, the pons, and the medulla oblongata; functions in homeostasis, coordination of movement, and conduction of information to higher brain centers. | Brainstem |
| A portion of the brain that participates in certain automatic, homeostatic functions, such as regulating the breathing centers in the medulla. | Pons |