AUTONOMIC Nervous System Flashcards
(46 cards)
Functions of Autonomic Nervous System
✓ changing your body temperature
✓ sending extra blood to a particular area
✓ slowing your heartbeat
✓ tweaking your stomach secretions
2 divisions under autonomic nervous system
• Sympathetic Nervous System
• Parasympathetic Nervous System
Difference of Sympathetic and Parasympathetic NS
- sites of origin of neurons from the CNS.
- Relative lengths of their fibers.
- Location of their ganglia.
Where does the Sympathetic NS originates?
Thoracolumbar area
It originate from between your thoracic and lumbar ver
Sympathetic NS
Origin of Parasympathetic NS
Craniosacral
It sprouts from the base of your brain and just superior to your tailbone
Parasympathetic NS
Both parts of your Autonomic system require ________ in order to work
Two Neurons
Clusters of neuron cell bodies that house millions of synapses
Ganglia
Found closer to the spinal cord
Sympathetic Ganglia
Found way out from the spine, near, or even inside, their effector organs
Parasympathetic Ganglia
Their neurons themselves have slightly DIFFERENT FORMS, namely the _______.
Length of their Axons
The neuron before the ganglion
Preganglionic cell
The neurons after the ganglion
Postganglionic cell
controls the body’s stress
response
Sympathetic NS
cause smooth muscles to constrict
Alpha receptors
cause smooth muscles to relax
Beta receptors
are secreted as
hormones
Norepinephrine & Epinephrine
What neurons use to communicate with each other or their effector organs, across a synapse
Neurotransmitters
✓ secreted by your glands
✓ flow through bloodstream
Hormones
Products of nervous tissue
Neurotransmitters
Products of epithelial tissue
Hormones
ACh
Acetylcholine
It is always released from postganglionic fibers in the sympathetic NS
Norepinephrine
