| A | B |
|---|
| Nueron | A nerve cell |
| Central Nervous System | Part of the nervous system that consists of the brain and the spinal cord |
| Peripheral Nervous System | Part of the nervous system that connects the central nervous system with other parts of the body |
| Cerebrum | The part of the brain that controls thinking and voluntary movements and receives information from the senses |
| Cerebellum | The part of the brain the coordinates movements and helps maintain balance |
| Brain Stem | Part of the brain that controls involuntary actions, such as breathing; connects the brain to the spinal cord |
| Hypothalumus | Part of the brain that controls body temperature, hunger, thirst, and emotions |
| Motor Neuron | Nerve cell in the peripheral nervous system that carries information from the CNS to muscles and organs |
| Endocrine Gland | A tissue or organ that releases chemical substances into the bloodstream |
| Pituitary Gland | Controls development and body growth, controls the thyroid, ovaries, testes, and others |
| Thyroid | Controls how cells release energy |
| Parathyroids | Controls the amount of calcium and phospherous in the blood |
| Adrenals | Controls the body's reaction to anger, fright, or fear |
| Pancreas | Controls the amount of glucose in the blood |
| Feedback loop | A message pathway that sends information back and forth from one part of the body to another |
| Glucose | A sugar that is the main source of energy for the body |
| Dendrite | Part of a neuron that collect information from other neurons |
| Axon | Part of the neuron that carries maessages away from the cell body |
| Synapse | The gap between the axon of one neuron and the dendrite of a second neuron |
| Reflex | An automatic, unthinking response to a stimulus |
