Review Questions, Autonomics of the Abdomen
Autonomics of the Abdomen: Review Questions
1. The patient is experiencing visceral pain originating in the sigmoid colon. Nerve fibers that carry this sensation to the spinal cord pass through which of the following?
Genital branch of the genitofemoral nerve
Ilioinguinal nerve
Iliohypogastric nerve
Sympathetic trunk
Vagus nerve
2. The sympathetic nervous system:
Is widespread in its distribution
Has postganglionic neurons which may have their nerve cell bodies in the sympathetic trunk
Supplies gray rami communicans to anterior primary rami of all spinal nerves
Innervates abdominal viscera by branches that course through the thorax
All of the above
3. The sympathetic nervous system:
Has postganglionic neurons which may have their nerve cell bodies in the sympathetic trunk
Supplies white rami communicans to anterior primary rami of all spinal nerves
Innervates all abdominal viscera by preganglionic nerves that arise within the abdomen
Is also called the craniosacral division of the autonomic nervous system
None of the above
4. Which of the following is a FALSE statement about the vagus nerve?
It is the tenth (X) cranial nerve
It contains preganglionic parasympathetic axons
It contributes to part of the cardiac and pulmonary plexuses
It passes into the abdominal region in contact with the esophagus
It slows down the peristaltic contractions of the gut
5. In reference to the lymphatics of the abdomen:
The thoracic duct receives lymph from the lower extremities only
Very few lymph nodes are associated with the abdominal aorta
Lymph from the intestine may be whitish after a fatty meal due to absorption of fat
Lymphatic return from the GI tract is limited because the GI tract has a sparse lymphatic capillary bed
The cisterna chyli is located at the level of the 4th lumbar vertebra
6. All of the following statements are true regarding the celiac plexus of nerves EXCEPT:
It is anatomically adjacent to the celiac lymph nodes
It contains only postganglionic sympathetic nerve fibers
It supplies innervation to the liver and gall bladder
It supplies innervation to the first part of the duodenum
Many of its nerve fibers course with arteries
7. On its course to the cisterna chyli, lymph from the lower extremity could pass through which of the following lymph nodes?
External iliac nodes
Common iliac nodes
Lumbar nodes
Inguinal nodes
All of the above
