BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem
1 views

Most tumors that originate in the brain are not cancer, but growth of any tumor within the confined space of the skull can put pressure on .surrounding nervous tissue and thus harm neurons. Treating brain tumors with drugs is difficult because of the blood-brain barrier. Lipid-soluble drugs can penetrate this barrier, but they get into and affect all other cells too. Explain why.

Summary Introduction

To explain: Lipid-soluble drugs can penetrate the blood-brain barrier, but they can get into and affect all other cells too.

Concept introduction: Plasma membrane is composed of lipid bilayer. The lipid soluble drug can easily pass through it.

Explanation

Blood-brain barrier is a mechanism that has tight control over the composition of cerebrospinal fluid. In the wall of brain capillaries, tight junctions prevent the fluid from seeping between the cells. It acts as a filter that prevents the toxins to reach the brain...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

To temporarily increase the bodys water content, a person need only. a. consume extra salt. b. consume extra su...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

Why are mathematical results rounded?

An Introduction to Physical Science