Anatomy - Sympathetic and Parasympathetic

Question 1

What parts of the spinal cord have lateral horns and as a result have sympathetic innervation?

Why are lateral horns important for sympathetic innervation?

Answer 1

T1-L2

Lateral horns contain the presynaptic sympathetic cell bodies

Question 2

All spinal nerves have sympathetic innervation. T/F?

How?

Answer 2

T - due to the sympathetic trunk that runs down either side of the spinal cord

Question 3

Where do the abdominopelvic organs sympathetic innervation synapse?

Answer 3

Rather than synapsing in the sympathetic trunk (paravertebral) they synapse after it at the in one of prevertebral ganglia

Question 4

What is the one organ that has no synapse from the spinal cord to the organ?

Answer 4

Adrenal medulla - synapses directly on adrenal medulla

Question 5

What cranial nerves are responsible for parasympathetic innervation?
What spinal nerves are responsible?

Answer 5

III
VII
IX
X

Sacral nerves