Peripheral Nervous System Organization

0.0(0)
studied byStudied by 0 people
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/18

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

19 Terms

1
New cards

Central Nervous System (CNS)

Includes the brain and spinal cord

2
New cards

Peripheral Nervous System (PNS)

Comprises nerves attaching to the CNS

3
New cards

Neuron Functional Classification

Neurons categorized by impulse direction relative to CNS

4
New cards

Somatic Nervous System (SNS)

Controls voluntary and involuntary skeletal muscle contractions

5
New cards

Autonomic Nervous System (ANS)

Regulates smooth and cardiac muscle activity

6
New cards

Sympathetic Division

Triggers 'fight or flight' response

7
New cards

Parasympathetic Division

Manages 'rest and digest' functions

8
New cards

Preganglionic Fibers

Axons synapsing on peripheral ganglionic neurons

9
New cards

Postganglionic Fibers

Extend from peripheral ganglion to target organs

10
New cards

Ganglion Cell Body

Cell body of neurons in ganglia outside the CNS

11
New cards

Adrenergic Alpha (a) Receptors

Receptors affecting smooth muscle cells and vasodilation

12
New cards

Muscarinic Receptors

Receptors at cholinergic junctions in parasympathetic system

13
New cards

Nicotine Poisoning

Symptoms include high blood pressure and profuse salivation

14
New cards

Muscarine Poisoning

Causes nausea, constriction of respiratory passages

15
New cards

Adrenergic Beta (b) Receptors

Influence heart rate, muscle relaxation, and lipolysis

16
New cards

Autonomic Tone

Balances effects of sympathetic and parasympathetic divisions

17
New cards

Autonomic Innervation: The Heart

Dual innervation affects heart rate through neurotransmitters

18
New cards

Autonomic Innervation: Blood Vessel Dilation

Sympathetic fibers regulate muscle contraction for blood flow

19
New cards

Loss Of Vasomotor Tone

Causes conditions like vasogenic and neurogenic shock