Chapter 50.1 (SKIP) Flashcards
SKIP
Sensory Receptors
Sensory receptors interact directly with stimuli, both inside and outside the body
Sensory Transduction
Sensory transduction is the conversion of stimulus energy into a change in the membrane potential of a sensory receptor
Sensory Transduction:
Receptor Potential
This change in membrane potential is called a recptor potential
Transmission
After energy has been transduced into a receptor potential, some sensory cells generate the transmission of action potentials to the CNS
Perception
Perceptions are the brain’s construction of stimuli
Amplification
Amplification is the strengthening of stimulus energy by cells in sensory pathways
Sensory Adaptation
Sensory adaptation is a decrease in responsiveness to continued stimulation
Mechanoreceptors
Mechanoreceptors sense physical deformation caused by stimuli such as pressure, stretch, motion, and sound
Chemoreceptors
General chemoreceptors transmit information about the total solute concentration of a solution
Electromagnetic Receptors
Electromagnetic receptors detect electromagnetic energy such as light, electricity, and magnetism
Thermoreceptors
Thermoreceptors, which respond to heat or cold, help regulate body temperature by signaling both surface and body core temperature
Nociceptors
(Pain Receptors)
In humans, pain receptors, or nociceptors, are a class of naked dendrites in the epidermis