L-24 Flashcards
Name the 5 “special” senses
- vision
- hearing
- balance
- taste
- smell
How many somatic senses are there?
4
Name the somatic senses:
- mechanoreceptors
- nociceptors
- thermoreceptors
- chemoreceptors
What can mechanoreceptors detect?
- touch
- pressure
- vibration
- proprioception
What is proprioception?
Sense of movement and location
What do nociceptors detect?
- noxious stimuli ( painful/harmful)
What do thermoreceptors detect?
Temperature
What do chemoreceptors detect?
- chemicals (eg blood gasses)
How are mechanoreceptors triggered?
Physical distortion opens ion channels to make a receptor potential
Name three types of mechanoreceptors:
- proprioceptors
- barioceptors
- tactile receptors
Where would proprioceptors be found?
- muscle spindles
Hat do baroreceptors detect?
Blood pressure
What do tactile receptors detect?
- touch
- pressure
- vibration
What do myelinated free nerve endings in the skin usually detect?
- thermoreceptors detect change in temp
What do thinly or unmyelinated nerve endings in the skin usually detect?
- nociceptors
- detect mechanical, thermal, or chemical stimuli perceived as painful