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