1. Levels of which of the following hormones would be expectedto rise if one needed more energy in order to run up somestairs?
thyroid stimulating hormone (TSH)
Somatostatin
growth hormone
ADRENOCORTICOTROPIC
2. The first heart sound occurs at which of the followingmoments?
the end of isovolumetric contraction
the end of isovolumetric relaxation
the end of ventricular systole WRONG
the end of ventricular diastole
3.Which of the following occurs during the ejection stage of thecardiac cycle? ASK CHEGGS
blood is pumped from the left atrium past the bicuspid valve
blood is pumped from the right ventricle past the aorticsemilunar valve
blood is pumped from the left ventricle past that aoriticsemilunar valve
blood is pumped from the right atrium past the bicuspidvalve
4. Which of the following will cause more oxygen to be releasedfrom hemoglobin at the tissues?
low blood temperature
high concentration of hyrogen ions
high oxygen concentration
low carbon dioxide concentration
