QuestionAugust 9, 2025

A physician prepares to deliver medication via epidural injection. What structures/spaces does the needle pass in order to enter the epidural space? Check All That Apply Arachnoid mater Dura mater Subarachnoid space Pia mater None of the choices are correct.

A physician prepares to deliver medication via epidural injection. What structures/spaces does the needle pass in order to enter the epidural space? Check All That Apply Arachnoid mater Dura mater Subarachnoid space Pia mater None of the choices are correct.
A physician prepares to deliver medication via epidural injection. What structures/spaces does the needle pass in order to enter the epidural space?
Check All That Apply
Arachnoid mater
Dura mater
Subarachnoid space
Pia mater
None of the choices are correct.

Solution
4.6(156 votes)

Answer

None of the choices are correct. Explanation 1. Identify the Epidural Space The epidural space is located outside the dura mater and does not involve passing through any of the listed structures/spaces. 2. Analyze Needle Path To reach the epidural space, the needle passes through skin, subcutaneous tissue, supraspinous ligament, interspinous ligament, ligamentum flavum, but not through arachnoid mater, dura mater, subarachnoid space, or pia mater.

Explanation

1. Identify the Epidural Space<br /> The epidural space is located outside the dura mater and does not involve passing through any of the listed structures/spaces.<br />2. Analyze Needle Path<br /> To reach the epidural space, the needle passes through skin, subcutaneous tissue, supraspinous ligament, interspinous ligament, ligamentum flavum, but not through arachnoid mater, dura mater, subarachnoid space, or pia mater.
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