Autonomic Nervous System

autonomic nervus system slides

somatic nervous system function

innervates skeletal muscles

somatic ns anatomy

one upper motor neuron

one lower motor neuron btwn spinal cord and skeletal muscle

autonomic nervous system function

innervates smooth, cardiac, and glands

autonomic nervous system is

involuntary

what does the ANS do?

regulate body temperature and coordinates activities of multiple body systems

Autonomic Nervous System upper neuron from

hypothalamus

2 divisions of the ANS

parasympathetic & sympathetic

Sympathetic Nervous System Function

increased alertness, feeling of energy/euphoria, increased BP, HR, ventilation rate, 4 F’s

What are the 4 F’s?

Flight, Fighting, Feeding, Mating

Parasympathetic Nervous System function

conserves energy, eat/breed; rest and digest

Where do the pre and postganglionic communicate for parasympathetic nervous system?

At ganglia near effector organ

Sympathetic Nervous System function

widespread stimulatory effect on various organs in body

What does the adrenal medulla do?

releases neurotransmitters like epinephrine/norepinephrine

Sympathetic Nervous System pre & postganglionic neurons communicate where?

at ganglia near vetebral column

Thoracolumbar division

nuclei of preganglionic neurons reside in thoracic & lumbar portion of spinal cord

somatic nervous system is

voluntary

Upper motor neurons in primary motor cortex in the ___ lobe

FILL IN

Craniosacral division

soma/nuclei of preganglionic neurons reside in brain stem & sacral portion of spinal cord

Autonomic Nervous System Anatomy

one upper motor neuron

two lower motor neuron

Where is the lower motor neurons for the ANS located?

Between spinal cord and peripheral effector

How many sympathetic neurons travel to the adrenal medulla?

one

Where do the nuclei of the preganglionic neurons reside in the craniosacral division?

brain stem and sacral portion of spinal cord

Where is the nuclei of the thoracolumbar division of the preganglionic neuron?

They reside i the thoracic and lumbar portion of spinal cord