Sensation and Reflex Arcs Flashcards
What are sensitive to changes in the body’s external and include senses such as taste, smell, vision, hearing, pain, touch, pressure, temperature, and hair movement.
Exteroceptor
What respond to changes in blood pressure, fluid composition, balance, acceleration, and body position and movement.
Interoceptors
Reflexes are rapid, predictable, and involuntary motor responses to stimuli that are medicated over neutral pathways called
Reflex arcs
The type of stimuli to which a receptor is most sensitive is called
Adequate stimulus
If a stimulus strength remains constant and is not removed from the receptor, the receptor may become progressively less sensitive to the presence of the stimulus . This phenomenon is known____
Adaption
The sensation perceived after removal of the stimulus is called ____
Afterimage
The baseline skin temperature, or _________ is approximately 33 Celsius (91 F) under normal conditions.
physiological zero
Where a very hot stimulus applied to a cold spot on the skin feels cold because it activates cold fibers.
Paradoxical cold
Describes relationships in the intensity of visual, auditory. or cutaneous sensory information
Web Fechner principle
Those that involve involuntary control of skeletal muscle
Somatic reflexes