Sensory Receptors of the PNS

Question 1

The 5 main types of Receptors:

Answer 1

1. Mechanoreceptor-for sensing touch or pressure on the skin
2. thermoreceptor-for sensing temperature
3. nociceptor-for sensing pain and injury
4. photoreceptor-for sensing certain light wavelengths
5. Chemoreceptor-for sensing chemicals including changes in pH

Question 2

4 types of receptive cells:

Answer 2

1. Mechanical pressure or deformation-mechanoreceptors
2. pH and the presence of certain chemical molecules-chemoreceptors
3. Temperature-thermoreceptors
4. The presence of light and the wavelength of light-mediated by photoreceptors

Question 3

Two groups of receptors:

Answer 3

1. slowly adapting

2. rapidly adapting