Question Detail

ZOO 101 ZOO 101 Past Questions Objective Question
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Question

The blood-brain barrier serves to:
Options
A Produce cerebrospinal fluid
B Protect the brain from harmful substances in the blood
Correct Answer
C Facilitate rapid hormone passage
D Stimulate sensory reflexes
Correct Answer

Option B is the correct answer.

Detailed Explanation

The blood-brain barrier is a highly selective semipermeable border of endothelial cells that prevents pathogens, toxins, and other harmful substances in the blood from entering the brain tissue while allowing necessary nutrients to pass.

Hint

This protective mechanism makes brain infections difficult to treat with antibiotics.

Question Info

Course: ZOO 101
Topic: ZOO 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 38 of 2214
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