Anatomy Test

Inter neurons

Integrate information within brain or spinal cord; connect sensory and motor neurons; located entirely within the CNS

temporal lobe

contains the auditory, taste, and olfactory areas

Occipital lobe

contains vision center

frontal lobe

controls movement, language, and other higher thinking functions

neuron transmitting process

A resting neuron has more negative ions inside the membranes and more positive ions outside the membrane. The overall charge across the membrane is negative. Depolarization causes a protein channel to open, allowing sodium ions to flood inside the cell membrane. The overall charge across the membrane is positive. Repolarization opens a second protein channel, allowing Potassium ions to leave the cell. Overall change is negative. The sodium-potassium ATP pump moves Potassium ions back into the cell and sodium ions back out of the cell. This requires energy to complete.

How is a reflex arc different than a typical muscle action? Give an example.

Because it is involuntary (allows response before signal reaches the brain). Ex- bypasses the brain

Which portion of the neuron receives incoming signals? Which part conducts signals away from the cell body?

Dendrites receive incoming signals. Axons conduct signals away from the cell body.

Sensory neurons

Transmit information FROM a sense receptor to the brain or spinal cord

Motor neurons

Transmit information FROM the brain or spinal cord TO a muscle of gland; Cause muscle contraction or gland secretion

parietal lobe

sensory information

Describe the path of a reflex arc, using the terms sensory neuron, motor neuron, stimulus, movement, interneuron muscle

stimulus-> sensory neuron-> interneuron-> motor neuron-> muscle