Dehydration may cause some ions to become concentrated. If a person was suffering from severe hyperkalemia, you would expect
A) the membrane potential of nerves and muscles to be more negative.
B) the potassium ion concentration of the interstitial fluid to be less than normal.
C) the skeletal muscles to be unresponsive and cardiac arrest could occur.
D) muscle weakness and increased strength of twitch contractions.
E) All of the answers are correct.
C) the skeletal muscles to be unresponsive and cardiac arrest could occur.
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The vessels associated with the right atrium are the pulmonary veins.
Answer the following statement true (T) or false (F)
The pulmonary veins carry ________ blood to the ________
A) deoxygenated; left atrium B) oxygenated; right lung C) deoxygenated; superior vena cava D) deoxygenated; right atrium E) oxygenated; left atrium
Which blood vessels experience the sharpest decrease in blood pressure?
A) systemic veins B) systemic arterioles C) systemic venules D) systemic capillary beds
What event precedes the step in the bone-forming process shown in the figure?
formation of a secondary ossification center ossification within a fibrous membrane formation of the epiphyseal plate calcification of the cartilage matrix