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Brain Metabolism Quiz

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Questions and Answers

Which of the following statements accurately reflects the relationship between cerebral metabolic rate of oxygen consumption (CMRO2) and brain glucose consumption?

CMRO2 is normally 3 to 3.8 mL/100 g/min and brain glucose consumption is normally 5 mg/100 g/min (correct)

CMRO2 and brain glucose consumption are both normally 3 to 3.8 mL/100 g/min

CMRO2 is normally 5 mg/100 g/min and brain glucose consumption is normally 3 to 3.8 mL/100 g/min

CMRO2 and brain glucose consumption are both normally 5 mg/100 g/min

What is the normal cerebral blood flow (CBF) in mL/100 g/min?

100

50 (correct)

What is the relationship between cerebral blood flow (CBF) and cerebrovascular resistance (CVR)?

CBF is unrelated to CVR

CBF is equal to CVR (correct)

CBF is directly proportional to CPP

CBF is inversely proportional to CVR

What is cerebral autoregulation of blood flow?

The ability of the brain to regulate its own blood flow Signup and view all the answers

What is the lower limit of autoregulation (LLA)?

The lowest MAP at which cerebral autoregulation can occur Signup and view all the answers

What percentage of total body oxygen consumption is the adult brain responsible for?

20% Signup and view all the answers

What is the normal cerebral metabolic rate of oxygen consumption (CMRO2)?

3 to 3.8 mL/100 g/min Signup and view all the answers

What is the relationship between cerebral blood flow (CBF) and cerebrovascular resistance (CVR)?

CVR = CPP / CBF Signup and view all the answers

What is the cerebral autoregulation of blood flow thought to remain intact between?

MAP of 60 to 160 mmHg Signup and view all the answers

What occurs when cerebral vessels are maximally vasoconstricted and there are increases in perfusion pressure?

Cerebral hemorrhage Signup and view all the answers

Brain Metabolism Quiz

Choose a study mode

Podcast

Questions and Answers

Which of the following statements accurately reflects the relationship between cerebral metabolic rate of oxygen consumption (CMRO2) and brain glucose consumption?

What is the normal cerebral blood flow (CBF) in mL/100 g/min?

What is the relationship between cerebral blood flow (CBF) and cerebrovascular resistance (CVR)?

What is cerebral autoregulation of blood flow?

What is the lower limit of autoregulation (LLA)?

What percentage of total body oxygen consumption is the adult brain responsible for?

What is the normal cerebral metabolic rate of oxygen consumption (CMRO2)?

What is the relationship between cerebral blood flow (CBF) and cerebrovascular resistance (CVR)?

What is the cerebral autoregulation of blood flow thought to remain intact between?

What occurs when cerebral vessels are maximally vasoconstricted and there are increases in perfusion pressure?

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