What are the two attachments of skeletal muscles?
What will be an ideal response?
Answer: Origin (proximal or usually least moveable) & insertion (distal or usually more moveable)
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The primary function of the pericardial sac is to
a. prevent excessive expansion of the heart as it fills with blood b. secrete a fluid that reduces friction as the heart beats c. serve as a reservoir for blood to be used during strenuous exercise d. provide oxygen and nutrients to the heart muscle e. catch and kill any bacteria in the blood flowing through the heart chambers
Funny channels control which of the following currents?
a. inward sodium b. outward sodium c. inward potassium d. outward potassium e. inward calcium
In diabetes insipidus, blood levels of ________ are decreased causing an increase in ________.
A) aldosterone : potassium in the urine B) aldosterone : sodium in the urine C) ADH : plasma volume D) ADH : urine volume E) insulin : glucose in the urine
A condition where the 2 eyeballs are not properly aligned is referred to as
a) inguinal hernia. b) strabismus. c) presbyopia. d) myopia. e) hypermetropia