2.4 The Nerve Supply to the Abdominal Viscera Flashcards

1
Q

What are the 3 Sympathetic Nerves which supply the Abdominal Viscera?

A
  1. Abdominopelvic Splanchnic Nerves (Greater, Lesser and Least)
  2. Prevertebral Sympathetic Ganglia
  3. Abdominal Aortic Plexuses
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2
Q

What are the 3 Parasympathetic Nerves which supply the Abdominal Viscera?

A
  1. Anterior and Posterior Vagal Trunks

2. Pelvic Splanchnic Nerves

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3
Q

What happens to G.I. Secretion under Parasympathetic Innervation?

A

There is an increase in Secretion

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4
Q

What happens to G.I. Secretion under Sympathetic Innervation?

A

There is a decrease in Secretion

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5
Q

What happens to Peristalsis/G.I. Motility under Parasympathetic Innervation?

A

There is an increase in Peristalsis / G.I. Motility

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6
Q

What happens to Peristalsis/G.I. Motility under Sympathetic Innervation?

A

There is an decrease in Peristalsis / G.I. Motility

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7
Q

What happens to G.I. Blood Vessels under Parasympathetic Innervation?

A

Vasodilation of the G.i. Blood Vessels occurs

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8
Q

What happens to G.I. Blood Vessels under Sympathetic Innervation?

A

Vasoconstriction of the G.i. Blood Vessels occurs

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9
Q

What is the effect of a Vagotomy on Gastric Secretions?

A

There will be a permanent decrease of Gastric Secretions

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10
Q

What does Splanchnic mean?

A

Viscera

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11
Q

What is the Difference between the Abdominopelvic Splanchnic Nerves, and the Pelvic Splanchnic Nerves?

A

The Abdominopelvic Splanchnic Nerves supply Sympathetic Innervation
The Pelvic Splanchnic Nerves supply Parasympathetic Innervation

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12
Q

What is the main difference in the arrangement of Ganglia in the Sympathetic and Parasympathetic Nervous Systems?

A

Sympathetic Ganglia tend to be close to the Vertebrae (Short Pre-Ganglionic Fibers, Long Post-Ganglionic Fibers)
Parasympathetic Ganglia tend to be close to the Target Organ (Long Pre-Ganglionic Fibers, Short Post-Ganglionic Fibers)

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