Adaptive Capability to External Influences

What is the first body system to respond to environmental changes?

The nervous system.

What type of neurons contain sensory receptors that detect stimuli?

Afferent (sensory) neurons.

What are sensory receptors specialized to detect?

Certain types of stimuli.

What do neurons send to the CNS after detecting a stimulus?

Action potentials.

Where are action potentials sent after a stimulus is detected?

To the CNS.

What may occur after the CNS receives action potentials?

A motor response may be called for.

Where are sensory receptors found?

Everywhere in the body.

What are the four ways sensory receptors can be classified?

Location, structure (morphology), nature of the stimuli they detect, and rate of adaptation.

What is one way sensory receptors can be classified?

Location.

What is one way sensory receptors can be classified?

Structure (morphology).

What is one way sensory receptors can be classified?

Nature of the stimuli they detect.

What is one way sensory receptors can be classified?

Rate of adaptation.

What are the two structural classifications of sensory receptors mentioned in the notes?

Free nerve endings and encapsulated nerve endings.

What types of stimuli can sensory receptors detect?

Pressure, chemicals, light, and temperature.