The lighter area within the middle of the A band, where the thin filaments do not reach, is the ____________________.
Fill in the blank(s) with correct word
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Question 2) The brain cannot produce ATP in the absence of glucose or oxygen.
Indicate whether the statement is true or false
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Question 3) A skeletal muscle fiber contains numerous ____________________, which are cylindrical intracellular structures.
Fill in the blank(s) with correct word
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Question 4) The cells that form the walls of the brain capillaries have the inherent ability to form tight junctions.
Indicate whether the statement is true or false
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Question 5) A single skeletal muscle cell is known as a(n) ____________________.
Fill in the blank(s) with correct word
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Question 6) Under resting conditions, the brain uses approximately 50 of the body's oxygen consumption and 20 of the body's glucose consumption.
Indicate whether the statement is true or false
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Question 7) Smooth muscle cells are interconnected by gap junctions found in intercalated discs that join cells together.
a. True
b. False
Indicate whether the statement is true or false
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Question 8) Transport across the brain capillary walls is anatomically prevented between the cells and is physiologically restricted through the cells.
Indicate whether the statement is true or false
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Question 9) ATP splitting is much slower in smooth muscle, so cross-bridge activity and filament sliding occur about ten times more slowly in smooth muscle than in skeletal muscle.
a. True
b. False
Indicate whether the statement is true or false
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Question 10) Cerebrospinal fluid comes into direct contact with the neuronal and glial cells only at one location within the brain.
Indicate whether the statement is true or false