All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels
Indicate whether the statement is true or false
TRUE
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Hamstring muscles extend the thigh
Indicate whether this statement is true or false.
When the body removes CO2 by way of the respiratory system:
a. it lowers the pH of the blood b. it raises the pH of the blood c. it has no effect on pH because CO2 is neither an acid nor a base d. it is acting as a buffer
Which of the following respiratory volumes and capacities can not be measured with a spirometer?
A. Residual volume B. Vital capacity C. Tidal volume D. Expiratory reserve volume E. All of these can be measured with a spirometer.
Which of the following factors would NOT tend to increase systemic arterial blood pressure?
A. increased sympathetic stimulation of the blood vessels B. increased blood volume C. increased venous return D. increased parasympathetic stimulation of the heart E. increased activity of the skeletal muscle pump