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Central Nervous System and Brain Protection

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Central Nervous System and Brain Protection

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Questions and Answers

What acts as a cushion and reduces injury for the brain?

Brain capillaries

Cerebrospinal fluid (CSF) (correct)

Harmful metabolites

Plasma membrane

What substances continue to move directly through the plasma membrane due to their lipid-solubility?

Glucose, amino acids, and ions

Cerebrospinal fluid (CSF)

Harmful metabolites, drugs, and other substances

Oxygen; carbon dioxide; steroid hormones; most anesthetics; and alcohol (correct)

What is impermeable to water-soluble substances such as glucose, amino acids, and ions?

Brain capillaries

Cerebrospinal fluid (CSF)

Blood–brain barrier (correct)

Plasma membrane

What exchanges substances between the blood and extracellular fluid of the brain by way of highly selective membrane-bound protein carriers?

<p>Membrane-bound protein carriers</p> Signup and view all the answers

What are the three continuous sheets of connective tissue covering the spinal cord and brain?

<p>Dura mater, Arachnoid, Pia mater</p> Signup and view all the answers

Central Nervous System and Brain Protection

Choose a study mode

Podcast

Questions and Answers

What acts as a cushion and reduces injury for the brain?

What substances continue to move directly through the plasma membrane due to their lipid-solubility?

What is impermeable to water-soluble substances such as glucose, amino acids, and ions?

What exchanges substances between the blood and extracellular fluid of the brain by way of highly selective membrane-bound protein carriers?

What are the three continuous sheets of connective tissue covering the spinal cord and brain?

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