Answer:
Forms of passage of substances across the blood–brain barrier. (A) Passive diffusion: fat-soluble substances dissolve in the cell membrane and cross the barrier (e.g., alcohol, nicotine and caffeine). Water-soluble substances such as penicillin have difficulty in getting through.
Yes you can it’s pretty easy
If you're talking about just the arm and just the leg (not including the ankles and wrists or elbows and knees. The amount of bones are the same.
