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Practical 2
General Senses
| Question | Answer |
|---|---|
| General Senses, why aren't they special? | General senses are found all throughout the body, not in specific locations. Such as pain, proprioception, and temperature. |
| Sensation | Stimuli that sensory organs transmit to the brain to interpret, if an action potential is set off. |
| Receptor | Proteins that detect and respond to various physiological signals. |
| Stimulus | Any detectable change internally or externally that elicits a physiological response. |
| Projection | Recognition of a stimulus at the point of stimulus, through projecting where you believe it to be. My hand feels it, tells my brain, my brain "feels" it at my hand. |
| Learned Origin | The more the body is touched, the better it can learn the exact point it was touched. |
| Phantom Sensation | When someone loses a limb, the nerves still remember feeling it. This projects back from the brain as if it was still there. |
| Adaptation | Changes the body can make due to internal or external environments, generally to maintain or come back to homeostasis. |
| After Sensation | When a sensation occurs after the external cause of sensation has ceased. The brain can bring up this feeling again. |
| tactile | ability to sense and interpret through touch, such as mechanoreceptors. |
| Proprioceptors | These help know the body's position, movement, and force. Think muscle memory, but don't say muscle memory. |
| Nociceptors | Help in potentially harmful stimuli, extreme temps, pressure, triggering pain responses to avoid danger. Think like when you touch a hot muffler and your arm jerks away. |
| Mechanoreceptors | Respond to pressure, touch, and vibration. Think like fingers, grabbing, tactile. |
| Thermoreceptors | Detect Temperature changes and report them to the brain to help return to homeostasis. |
| Where might you find many touch (mechanoreceptors) receptors in the skin? | The finger tips. |
| Where might you find little touch (mechanoreceptors) receptors in the skin? | The back of the calf. |
| Can someone detect warm and cold probes at the same spot? Why? | Yes, most. Thermoreceptors are classified into warm and cold receptors. These are often stacked by one another, as we need to feel both. |
| When doing a test to hit the target on the whiteboard, Myles was able to more accurately hit the dot he made rather than the one I made. Why? | Because Myles could use proprioception to use the same muscle movements to hit the target closer than when trying to hit my marks. |
| What is the difference between the taste buds and the papillae of the tongue? | Papillae are the soft raised bumps of the tongue. Taste receptors (taste buds) are found within each papillae. |
| What are the four tastes? | Sweet, salty, sour, and bitter. Umami is the fifth, not really need to know. |
| What is Visual Acuteness? | Visual acuity refers to the sharpness or clarity of vision, typically measured at a distance of 20 feet, and is expressed as a fraction (e.g., 20/20 vision) |
| Tactile would belong to which receptors? | Mechanoreceptors |
| Temperature would belong to which receptors? | Thermoreceptors |
| Pain belongs to which receptors? | Nociceptors |
| Stretch belongs to which receptors? | Proprioceptors |
| Two-point discrimination test? | Test to see how close two points can be detected. |
Created by:
JoshuaB5