If a Drug Is Found in the Brain but Does

question 66

Multiple Choice

If a drug is found in the brain but does not possess the properties needed for passive diffusion through the blood-brain barrier then a researcher should conclude:

• A) the drug entered the brain through active transport mechanisms.
• B) the drug is synthesized and released from cells in the brain.
• C) the properties of the substance were altered by brain glial cells.
• D) nonspecific binding allowed the drug to pass through the blood-brain barrier.

---

Definitions:

Physical Fitness

A state of health and well-being achieved through regular physical activity, which enhances overall physical performance, endurance, and strength.

Vaginal Birth

The process by which a baby is delivered through the mother's birth canal, as opposed to being delivered surgically via cesarean section.

Relaxation

a state or activity aimed at reducing tension, stress, and anxiety, promoting physical and mental well-being.

Labor

The process of childbirth, especially the period from the start of uterine contractions to delivery.