Term
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Definition
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Term
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Definition
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Term
| Somatocensory Receptors: Simple Receptors |
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Definition
| Neurons with free nerve endings. |
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Term
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Definition
| Nerve endings enclosed in connective tissue capsules |
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Term
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Definition
| Cells that release neurotransmitter onto sensory neurons initiating an action potential. |
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Term
| Sensory Receptors: Chemoreceptors |
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Definition
| Oxygen, pH, and various organic molecules such as glucose. |
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Term
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Definition
| Pressure, Call Stretch, Vibration, Acceleration and Sound. |
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Definition
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Term
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Definition
| Varying degrees of light. |
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Term
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Definition
| Stimulus energy converted into information produced my the CNS. |
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Term
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Definition
| Preferred form of stimulus. |
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Term
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Definition
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Term
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Definition
| Change in sensory receptor membrane potential. |
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Term
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Definition
| Spinal Cord to brain by ascending pathways or directly to brain stem via cranial nerves. |
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Term
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Definition
| Level of stimulus necessary to be aware of particular sensation. |
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Term
| Sensory Pathways in the Brain: Olfactory |
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Definition
| From the nose project through the olfactory bulb to the olfactory cortex. |
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Term
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Definition
| Modifies and relays information to the cortical center. |
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Term
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Definition
| Project to the cerebellum. |
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Term
| Modality (The Nature of the Stimulus) |
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Definition
| Indicated by: Which sensory neurons are activated and where the neurons terminate in the brain. |
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Term
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Definition
| Coded by number of receptors activated and frequency of action potentials. |
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Term
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Definition
| Duration of action potentials. Some receptors adopt or cease to respond. |
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Term
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Definition
| Slowly adapting receptors that respond for the duration of a stimulus. |
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Term
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Definition
| Rapidly adapt to a constant stimulus and turn off. They fire once more when the stimulus turns off. |
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Term
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Definition
| Touch, Proprioception, Temperature, and Nociception: Pain and Itch. |
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Term
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Definition
| Found in the skin and in deeper regions of the body. |
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Term
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Definition
| Sense steady pressure and texture. |
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Term
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Definition
| Responds to flutter and stroking movements. |
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Term
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Definition
| Carries signals to spinal cord. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Links between smell, memory and emotion. In nasal cavity. |
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Term
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Definition
| Has secondary sensory neurons in olfactory bulb. |
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Term
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Definition
| Ligands activate the taste cell, Multiple intracellular pathways are activated, Ca2+ signal in the cytoplasm and triggers exocytosis, neurotransmitter and primary sensory neuron fires, action porentials sent to the brain. |
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Term
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Definition
| Located on dorsal surface of tongue. |
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Term
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Definition
| Sense organ specialized for 2 functions: hearing and equilibrium. |
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Term
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Definition
| Ear Canal leads to Tympanic Membrane. |
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Term
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Definition
| Malleus, Incus and Stapes. |
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Term
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Definition
| Vestibular Apparatus and Cochlea. |
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Term
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Definition
| Hearing is our perception of energy carried by sound waves, electrical signals in cochlea, primary sensory neurons to brain in medulla oblongata, sound projected to nuclei. |
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Term
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Definition
| No transmission through either external or middle ear. |
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Term
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Definition
| Damage to neural pathway between the ear and cerebral cortex or the cortex itself. |
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Term
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Definition
| Damage to structures of inner ear. |
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Term
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Definition
| Provides info about movement and position in space. |
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Term
| Eye and Vision: When light enters the eye |
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Definition
| Focused on retina by lens. |
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Term
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Definition
| attach lense to cilliary muscle. |
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Term
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Definition
| Bends light to focus it on the retina. |
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Term
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Definition
| Where optic nerve and blood vessels leave the eye. |
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Term
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Definition
| Changes the amount of light entering the eye. |
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Term
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Definition
| Contraction alters curvature of the lens. |
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Term
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Definition
| Region of sharpest vision. |
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Term
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Definition
| Layer that contains photoreceptors. |
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Term
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Definition
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Term
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Definition
| Object that drs. use to view the rear wall of the eye. |
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