Odorants (odor molecules) enter the nose and dissolve in the olfactory epithelium, the mucosa at the…

Somatosensation is a mixed sensory category and includes all sensation received from the skin and…

Four aspects of sensory information are encoded by sensory systems: the type of stimulus, the…

Figure 17.1.  This shark uses its senses of sight, vibration (lateral-line system), and smell to…

Mental illnesses are nervous system disorders that result in problems with thinking, mood, or relating…

A nervous system that functions correctly is a fantastically complex, well-oiled machine—synapses fire appropriately, muscles…

Parasympathetic Nervous System While the sympathetic nervous system is activated in stressful situations, the parasympathetic nervous…

The sympathetic nervous system is responsible for the “fight or flight” response that occurs when an animal…

The peripheral nervous system (PNS) is the connection between the central nervous system and the…

Long-term Potentiation (LTP) Long-term potentiation (LTP) is a persistent strengthening of a synaptic connection. LTP is…