Concept explainers
Introduction:
The blood brain barrier (BBB) is formed by the endothelial cells that are interconnected to each other by the tight junctions. This junction serves as a barrier against the entry of unwanted molecules inside the membrane of the blood vessels. The lipid membrane is permeable to the small ions like oxygen, carbon dioxide, ammonia, lipids, that can easily move across the bipolar lipid membrane and move into the interstitial fluid. The process of diffusion, active and passive transport moves the ions and water molecules across the membrane.
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
Fundamentals of Anatomy & Physiology; Mastering A&P with Pearson eText -- ValuePack Access Card -- for Fundamentals of Anatomy & Physiology; Martini's ... Human Body (ValuePack Version) (10th Edition)
- What is the blood brain barrier? Which areas of the brain lack a blood-brain barrier and why is this significant?arrow_forwardDamage to which region of the brain – the cerebrum or the brain stem – is more likely to be fatal?arrow_forwardName the three divisions of the diencephalon and their functionsarrow_forward
- Which chemicals cross the blood–brain barrier by active transport?arrow_forwardWhat does the paraventricular nucleus do?arrow_forwardPeyton felt strange when she awoke one morning. She could not hold a pen in her right hand when trying to write an entry in her diary, and her muscles were noticeably weaker on the right side of her body. Additionally, her husband noticed that she was slurring her speech, so he took her to the emergency room. What does the ER physician suspect has occurred? Where in the brain might the physician suspect that abnormal activity or perhaps a lesion is located, and why?arrow_forward
- Surgical Tech For Surgical Tech Pos CareHealth & NutritionISBN:9781337648868Author:AssociationPublisher:Cengage