Traditionally, some vital signs, such as pulse and blood pressure, were taken manually. it is not uncommon to see medical facilities use electronic bp cuffs and a pulse oximeter to take the bp and pulse.

answer; i do believe that the correct answer is ( portal of exit in the chain of transmission); good luck

a. steroid--> influences moods in the limbic system

b. inhalant--> dissolves fatty tissue in the brain

c. marijuana--> changes how the hippocampus processes sensations