The spermatic cord in the male follows the inguinal canal and contains the following structures, EXCEPT:

High doses of vitamin A during pregnancy increase the risk for fetal malformations

Indicate whether the statement is true or false

Which type of ventilation system provides a supply of clean air and reduces contaminants and fumes from the OR?

a. negative, bidirectional b. negative, unidirectional c. positive, bidirectional d. positive, unidirectional