The PNS contains only _____
nerves
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| Term | Definition |
|---|---|
The PNS contains only _____ | nerves |
What does the Peripheral Nervous System connect? | The brain/spinal cord to rest of the body |
The Peripheral Nervous System consists of? | Somatic Nervous System
Autonomic Nervous System |
What is the Somatic Nervous System? | Composed of sensory nerves carrying impulses from the body's sense organs to the CNS
Also made of Motor nerves the carry commands from CNS to muscles
PRIMARILY VOLUNTARY |
What is the Autonomic Nervous System? | NOT under conscious control
Controls muscles in the heart,
smooth muscle in internal
organs such as the intestine,
bladder, and uterus |
What does the Autonomic Nervous System consist of? | Sympathetic Nervous System
Parasympathetic Nervous System |
The Sympathetic Nervous System is dominant during? | Stress (heart rate increases, blood pressure rise, pupils dilate) |
The Parasympathetic Nervous System remains dominant under? | Normal conditions (regular blood pressure, heart rate, pupils constrict)
It COUNTERACTS the Sympathetic Nervous System |
Which system sets off the Fight or Flight response? | Sympathetic (adrenaline released) |
Which system sets off the Rest or Digest response? | Parasympathetic |