Select the correct present tense conjugation of the verb “estar” that goes with the subject pronoun indicated. Las profesoras

Complete the sentence with the correct word from the list. Guillermo siempre estudia en la ______________.

The renin-angiotensin-aldosterone system helps restore blood volume and blood pressure by a combination of systemic vasoconstriction and Na+ (followed by water) retention by the kidneys.

When solutes (such as Na+) move from one fluid compartment to another, water usually follows due to osmosis.

Resistance training can decrease inhibitory impulses to agonist muscles by reducing autogenic inhibition.

Chemical buffers in the blood are only a short-term solution for blood acidosis after exercise.

Maximal heart rate is determined by age, not fitness status.

Cardiac output is the volume of blood ejected from the heart each time it beats.

A decrease in blood oxygen concentration can lead to a localized vasodilation in the body.

During systole, the ventricles contract but don’t eject their full blood volumes.