reflexes and senses

Question 1

what are sensory receptors?

Answer 1

-are nerve endings, often with specialized non-neural structures
-they are transducers that convert different forms of energy into frequency of -Action Potentials (APs).
they inform the CNS about the internal and external environment

Question 2

what is sensory modality?

Answer 2

a type of stimulus activating a particular receptor: eg. touch, pressure, pain, temperature, light.

Question 3

what is an “adequate stimulus”?

Answer 3

the type of energy a receptor normally responds to

sensory receptors are highly sensitive to one specific energy form but can be activated by other intense stimuli

Question 4

what is a mechanoreceptor?

Answer 4

stimulated by mechanical stimuli - pressure, stretch, or deformation. Detect many stimuli - hearing, balance, blood pressure and skin sensations of touch and pressure

Question 5

what are proprioceptors?

Answer 5

are mechanoreceptors in joints and muscles that signal information related to body or limb position

Question 6

what are nociceptors?

Answer 6

respond to painful stimuli - tissue damage and heat

Question 7

what is a thermoreceptor?

Answer 7

detects cold and warmth

Question 8

what is a chemoreceptor?

Answer 8

detect chemical changes e.g. pH, pO2 and pCO2

Question 9

what is a photoreceptor?

Answer 9

responds to particular wavelengths of light