Question

Pain experienced during the 1st stage of labor, particularly uterine contractions, is primarily transmitted through which dermatomes?

A) Lower thoracic (T10-T12)
B) Lumbar (L1-L5)
C) Sacral (S1-S5)
D) Cervical (C1-C8)

Answer 1

The pain experienced during the first stage of labor, particularly uterine contractions, is primarily transmitted through the Lumbar (L1-L5) dermatomes.

Step-by-step explanation:

The pain experienced during the first stage of labor, particularly uterine contractions, is primarily transmitted through the Lumbar (L1-L5) dermatomes. Uterine contractions during labor are caused by stretching of the myometrium and cervix by the full-term fetus, which triggers reflexive uterine contractions. These contractions result in cervical dilation, and the pain is attributed to myometrial hypoxia during these contractions.