Nervous System Cns, Pns, Mostly Ans A&p

Front 1

What are the components of the Peripheral NS?

Back 1

-12 pairs of cranial nerves
-31 pairs of spinal nerves
-Ganglia
-sensory receptors
-enteric plexuses

Front 2

What are the divisions of the Peripheral NS?

Back 2

-Somatic NS
-Autonomic NS
-Enteric NS

Front 3

Another term for Sensory Neurons?

Back 3

Afferent Neurons

Front 4

Two parts of motor division conducting impulses from the CNS to effectors?

Back 4

Somatic NS and Autonomic NS

Front 5

The autonomic nervous system, AKA involuntary nervous system, has two functional subdivisions working in opposition of each other (stimulate/inhibit) What are they?

Back 5

Sympathetic NS & Parasympathetic NS

Front 6

Effects of Parasympathetic NS on...
-Eye pupils?
-Secretory activity?
-Glycogenolysis?
-Sweat glands?
-Adrenal medulla?
-Heart rate?
-Bladder and urethral sphincter?
-Bronchioles?
-Motility of GI/GU?
-Kidney?
-Penis/Clitoris?
-Blood vessels?

Back 6

-Constrict eye pupils
-Stimulate secretory activity
-Decrease glycogenolysis
-No effect on sweat glands
-No effect on adrenal medulla
-Decrease heart rate
-Contraction of bladder, relaxation of urethral sphincter
-Constricts bronchioles
-Increases motility of GI/GU
-No effect on kidney
-Causes erection
-No effect on blood vessels

Front 7

Effects of Symphathetic NS on...
-Eye pupils?
-Secretory activity?
-Glycogenolysis?
-Sweat glands?
-Adrenal medulla?
-Heart rate?
-Bladder and urethral sphincter?
-Bronchioles?
-Motility of GI/GU?
-Kidney?
-Penis?
-Blood vessels?

Back 7

-Dilate pupils
-Inhibit secretory activity
-Increase glycogenolyis
-Stimulates sweat glands
-Stimulates medulla to secrete
-Increases heart rate
-Relaxation of bladder
-Dilates bronchioles
-Decrease motility
-Promotes renin formation; lowers urine output
- Cause ejaculation by contraction of smooth musles.

Front 8

Where does the Para NS emerge from?

Back 8

-The cranial nerves of the brain (III, VII, IX, X)
-Sacral nerves 2, 3, 4

Front 9

Where does the Sympa NS emerge from?

Back 9

The thoracic and lumbar spinal cord

Front 10

Sympa NS has what length preganglionic and postganglionic fibers?

Back 10

Short Preganglionic and Long Postganglionic

Front 11

The Para NS has what length preganglionic and postganglionic fibers?

Back 11

Long preganglionic & Short postganglionic fibers

Front 12

Where do the ganglia of the Sympa NS lie? Where do they originate from?

Back 12

-Close to the spinal cord
-Thoracolumbar

Front 13

Where do the ganglia of the Para NS lie? Where do they originate from?

Back 13

-Located in the visceral effector organs
-Craniosacral: Cranial nerves 3, 7, 9, 10; sacral nerves 2, 3, 4

Front 14

Mnemonic for stimulative effects of the Para NS?

Back 14

S alvation
L acrimation
U rination
D efecation
D igestion

Front 15

Which fibers are cholinergic (acetylcholine)?
-Innervation examples: sweat glands, blood vessels of skeletal muscles, and external genitalia

Back 15

-All ParaNS fibers: preganglionic & postganglionic
-Preganglionic SympaNS fibers

Front 16

Which fibers are adrenergic (norepinephrine)?
-Innvervation examples: Heart, smooth muscles, and glands

Back 16

-Most postganglionic SympaNS fibers

Front 17

What are the cholinergic (acetylcholine) receptors?

Back 17

Nicotinic and Muscarinic
-all preganglionic muscle fibers have nicotinic receptors

Front 18

What are the adrenergic (norepinephrine) receptors found on visceral effectors?
Which excite and which inhibit?

Back 18

α1, β1= excitation of effector
α2, β2= inhibition of effector

Front 19

What is the difference between paravertebral ganglia and prevertebral ganglia?

Back 19

-Paravertebral ganglia run inferiorly along the sympathetic trunk (aka sympathetic chain ganglia) .
-Prevertebral (or preaortic) ganglia lie along the abdominal aorta

Front 20

How many cervival vertebrae? pairs of cervical nerves? pairs of cervical ganglia?

Back 20

7 cervical vertebrae
8 pairs of cervical nerves
3 pairs of cervical ganglia: superior, middle, inferior

Front 21

How many thoracic vertebra, pairs of thoracic nerves, pairs of thoracic ganglia?

Back 21

12

Front 22

How many lumbar vertebra, pairs of lumbar nerves, pairs of lumbar ganglia?

Back 22

5

Front 23

How many pairs of sacral nerves and sacral ganglia?

Back 23

5

Front 24

What is the ganglion impar?

Back 24

It is the point where the two chains of sympathetic chain ganglia converge in the coccyx.

Front 25

What are the prevertebral (preaortic) ganglia?

Back 25

Celiac ganglion, superior mesenteric ganglion, inferior mesenteric ganglion.

Front 26

Where aren't there any preganglionic fibers?

Back 26

In the cervical region and below the L2 nerves.

Front 27

What are the lengths of fibers in the SympaNS?

Back 27

Short preganglionic and long postganglionic.
-SympaNS ganglia lie close to the spinal cord

Front 28

What are the lengths of fibers in the ParaNS?

Back 28

Long preganglionic and short postganglionic.
-ParaNS ganglia are located in the visceral effector organs, thus have a more localized effect.

Front 29

What ganglion is associated with cranial nerve III?

Back 29

Ciliary ganglion

Front 30

What ganglia are associated with cranial nerve VII?

Back 30

Pterygopalatine ganglion and submandibular ganglion

Front 31

What ganglion is associated with cranial nerve IX?

Back 31

Otic ganglion