| A | B |
|---|
| Sensory Receptor | An organ which responds to a specific type of stimulus by ultimately triggering an action potential on a sensory neuron |
| Somatic receptors | Sensory receptors in the skin, muscle, and tendons |
| Visceral receptors | Sensory receptors in the internal organs |
| Special receptors | Sensory receptors in specific locations |
| Mechanoreceptors | Sensory receptors which respond to movement |
| Thermoreceptors | Sensory receptors which respond to heat or cold |
| Photoreceptors | Sensory receptors which respond to light |
| Chemoreceptors | Sensory receptors which respond to chemicals |
| Nociceptors | Sensory receptors which respond to pain or excess stimulation |
| Cutaneous receptors | Receptors in the skin |
| Proprioceptors | Receptors in the muscles and tendons |
| Projection | referring to the cerebral cortex telling us where a stimulus occurs |
| Modality | referring to the cerebral cortex determining what kind of receptor sent the signal |
| Adaptation | the receptor physically stops responding or slows its response even if the stimulus remains constant |
| muscle spindle | a mechanoreceptor located within the skeletal muscle and lets us know when the muscle is relaxed |
| Golgi tendon organ | receptor in the tendon and tells us how much a muscle is contracted |
| Olfaction | sense of smell |
| gustatory sense | sense of taste |
| lens | bends light to focus it on the retina |
| sclera | maintains the shape of the eye, protects the eye, provides point of attachment for the muscles that move the eye |
| optic nerve | carries action potential from the eye to the brain |
| vitreous humor | fluid that gives the general shape to the eyeball by inflating it |
| retina | contains the photoreceptors that detect light |
| choroid | supplies the eye with oxygen and nutrients |
| conjunctiva | protects and lubricates the eye |
| cornea | covers the eye and bends light for focusing |
| posterior and anterior chamber | holds the aqueous humor |
| pupil | allows light to enter the eye |
| iris | controls the size of the pupil |
| ciliary body | contains muscles that change the shape of the lens |
| rods | photoreceptors that detect light |
| cones | photoreceptors that detect color |
| myopia | nearsightedness |
| hyperopia | farsightedness |
| Merkel's disks | cutaneous receptors for light touch |
| Meissner's corpuscles | cutaneous receptors for two-point discrimination |
| Pacinian corpuscles | cutaneous receptors for pressure receptors |
| Free nerve endings | cutaneous receptors for heat, cold, movement, itch, and pain |
| cochlea | Spiral cavity (snail-shaped) of the inner ear that converts sound waves into nerve impulses |
