Which of the following layers of the heart and their functions are correctly matched?
A) Endocardium—protective outer covering
B) Myocardium—cardiac muscle tissue that pumps blood out of the heart chambers
C) Pericardium—protective inner lining of the heart chambers and valves
D) Epicardium—protective inner lining of the heart chambers and valves
B
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Brain cells are able to absorb glucose independent of insulin. What must be missing from brain cells compared to most other cell types? One of the risks of diabetes mellitus is diabetic coma, which results when insufficient glucose is available to the brain. Would you expect diabetic coma to be triggered when insulin is low or high? Explain. (Hint: Think about regulation of the number of glucose
transporters in brain cells and how the hyperglycemia present prior to insulin treatment may affect transporters.) What will be an ideal response?
A high percentage of sodium and potassium ions move during each action potential
Indicate whether the statement is true or false
All the following structures are primary organs of the endocrine system except the ________.
Fill in the blank(s) with the appropriate word(s).
All cells in the epidermis arise from mitotic activity in stratum:
A) lucidum. B) granulosum. C) basale. D) corneum.