Page 12 - SELF-PACED LEARNING MODULES

increases the rate at which the electrical signal travels along the axon.

Axon terminal- Part of the axon where neurotransmitters are stored.

Nodes of Ranvier- short segments of the axonal membrane that are
not covered by myelin sheath.

SENSORY SYSTEM

SENSORY SYSTEM This system allow us to experience Touch, pressure,
the world through a variety of pain,
sensations: proprioception,
temperature, taste,
smell, vision,
hearing, and
equilibrium
Receptors and sensation A receptor is a specialized area of Five types :
a sensory neuron that detects a Chemoreceptors
specific stimulus Nocireceptors )
Thermoreceptors
Mechanoreceptors
photoreceptors
Sensation Is a conscious awareness of There are four
incoming information components of a
sensation:
The two
characteristics of a
sensation are
projection and
adaptation

General senses Pain
Touch and pressure
Temperature
Propioception
Special senses

Sense of smell: The nose Olfactory
receptors are
chemoreceptors
Sensory