The finger like projections within the ventricular myocardium which are connected to the AV valves by fibers are called ___.
a) trabeculae carne
b) chordae tendinae
c) papillary muscles
d) musculi pectinati
Ans: c) papillary muscles
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The descending limb of the nephron loop ________
A) is not permeable to water B) is freely permeable to sodium and urea C) contains fluid that becomes more concentrated as it moves down into the medulla D) pulls water by osmosis into the lumen of the tubule
Which of the following conditions might result in the back flow of blood through a weakened mitral valve?
A. High pressure in the left ventricle, low pressure in the left atrium B. High pressure in the left atrium, low pressure in the left ventricle C. High pressure in the right ventricle, low pressure in the right atrium D. High pressure in the right atrium, low pressure in the right ventricle
A pedigree is a chart that aligns chromosome pairs by size
Indicate whether the statement is true or false
Stroke volume is affected by all of the following EXCEPT ________.
A. total peripheral resistance B. end diastolic volume (EDV) C. emotional stress D. cardiac contractility