Poor vision can result from diabetes
Indicate whether the statement is true or false
True
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Which darkly pigmented structure reduces light reflection within the eyeballs?
a) Sclera b) Conjunctiva c) Iris d) Choroid e) Retina
The hilum of the lung
A. is an indented area through which the bronchi, pulmonary vessels, lymphatic vessels, and nerves pass. B. is the point of exit of exhaled air. C. is the point of entrance for inhaled air. D. is an elevated area through which the trachea, pulmonary vessels, and nerves pass. E. serves to anchor all pulmonary structures to the mediastinum.
The oxygenated form of hemoglobin is called ________.
A. carbaminohemoglobin B. loaded hemoglobin C. carboxyhemoglobin D. deoxyhemoglobin E. oxyhemoglobin
An action potential results from ________
A) a change in the permeability of the neuron to Na+ followed by a change in the permeability to K+ B) changes in the permeability of the neuron membrane to K+ alone C) a change in the permeability of the neuron to K+ followed by a change in the permeability to Na+ D) changes in the permeability of the neuron membrane to Na+ alone