| A | B |
| anatomy | study of structure of the body |
| physiology | functioning of the body's structural machinery |
| brain and spinal cord | Central Nervous System |
| Spinal nerves | carry information from body to brain |
| fight or flight reflex | Sympathetic System |
| Sensory nerves | afferent |
| motor nerves | efferent |
| pairs of cranial nerves | 12 |
| pairs of spinal nerves | 31 |
| cerebrum | fills most of anterior cranial cavity |
| synapse | between a dendrite and an axonal ending |
| corpus callosum | structure that attaches the two cerebral hemispheres |
| cell of nervous system | neuron |
| mechanoreceptor | response in pressure or movement |
| photoreceptors | response to light |
| chemoreceptors | response to chemical changes |
| bones of ear are located | middle ear |
| sense of smell | olfactory cells |
| eye control | optic nerve |
| lense | focuses light on retina |
| color of the eyes | iris |
| horizontal eustachian tube | commonly found in infants and children |
| ear control | auditory nerve |
| ear drum | tympanic membrane |
| cerebellum | reflex center / coordinates movement of muscles |
| medulla oblongata | connects spinal cord to cerebrum |
| brainstem | regulates heart rate and respiratory rate |
| cerebrum | named per bone closest to it - thinking part of brain |
| fluid tissue | blood |
| nonliving fluid component of blood | plasma |
| life of erythrocytes | 120 days |
| universal donor | O blood |
| universal recipient | AB blood |
| granulocytes | neutrophils, basophils, eosinophils |
| agranulocytes | lymphocytes, monocytes |
| diastolic pressure | heart relaxation |
| systeolic pressure | heart contraction |
| normal blood pressure | 120 / 80 mmHg |
| artery | carries blood to tissues |
| vein | carries blood from tissues |
| number of chambers of human heart | four |