25) Autonomic nervous system? two divisions

the 2nd neuron that runs from the ganglion to the effectors (cardiac muscle,smooth,glands)

(post-ganglionic fiber) axons connecting the ganglion cells with the peripheral effectors

the first neuron to run from the CNS to the autonomic ganglion.

(pre-ganglionic fiber) which is axons extending from the CNS to a ganglion

vagus nerve

90%

symapathetic division

Division of the autonomic nervous system that is active when the body is active or exercising. It uses the neurotransmitter nor-epinephrine. "Fight or Flight response". Sympathetic neurons - originate from the lateral horn of the thoracic and lumbar segments of the spinal cord more glucose for energy increase hear rate dilate pupils decrease digestive active

autonomic nervous system

The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions such as the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal.

parasympathetic division

The branch of the autonomic nervous system that generally conserves bodily resources. "rest and repose" Parasympathetic neurons- originate from the brain stem and the sacral area of the spinal cord. Cranial nerves 3,7,9 and 10 have parasympathetic functions. Parasympathetic gangelia are the organ that is being regulated.

The ANS uses two neurotransmitters

acetylcholine and nor-epinephrine

Neurotransmitters of the ANS

parasympathetic uses acetylcholine and the sympathetic uses acetylcholine in its ganglia and uses nor-epinephrine on most of its effectors.

The autonomic nervous system has two divisions

sympathetic and parasympathetic