Innervation Flashcards
1
Q
Vagus Nerve
A
Anterior Stomach Wall
2
Q
Right Vagus Nerve
A
Posterior Stomach Wall
3
Q
Autonomics / Visceral Afferents (Endodermal)
A
Above Pectinate Line
4
Q
Inferior Rectal Nerves - Pudendal Nerve / Somatic Afferents (Ectodermal)
A
- Below Pectinate Line
- Ext. Anal Sphincter (Striated muscle)
5
Q
Somatic Afferents
A
Parietal Peritoneum
6
Q
Visceral Afferents
A
Visceral Peritoneum
7
Q
Sacral Plexus
A
Levator Ani muscle (striated)
8
Q
Internal Rectal Venous Plexus (Internal Veins)
A
Painless Homorrhoids
9
Q
External Rectal Venous Plexus (Ext. Veins)
A
Painful Hemorrhoids
10
Q
CN IX & X (via Medulla)
A
Swallowing Reflex
11
Q
Nucleus Ambigus
A
- Somatic Nerves
- Regulate Pharynx & striated Esophagus (upper 1/3)
12
Q
Dorsal Motor Nucleus
A
- Autonomic Nerves
- Control SM of Esophagus (lower 2/3) via ENS
- Project onto inhibitory/excitatory neurons in Esophageal Myenteric Plexus
