Circulation Flashcards
-responsible for the distribution of nutrients and essential gases.
-responsible for the maintenance of osmotic pressure and blood pH levels among others.
Circulatory system
the tiniest and the thinnest blood vessel.
capillaries
outermost covering of the capillaries.
thin endothelium
capillaries are the site of
gaseous exchange
Capillaries allow diffusion of ________ into the bloodstream and the release of ___________.
oxygen, carbon dioxide
adult male’s average heart rate
between 70 and 72 beats per minute
adult female’s heart rate
between 78 and 82 beats per minute.
newborn 0 to 1 month old average beats
70 to 190 per minute
an infant 1 to 11 months old has an average pulse rate of
80 to 160 beats per minute
children 1 to 2 years old average heart rate
80-130 beats per minute.
children 3 to 4 years of age average pulse rate
80 to 120 beats per minute
children 5 to 6 years old average beats
75 to 115 beats per minute
children 7 to 9 years old average pulse rate
70 to 110 beats per minute
children ten years and older, and adults including seniors average beats
60 to 100 beats per minute
a factor that significantly affects the heart’s action. It can cause temporary increases not just in the heart but also in blood pressure levels.
Alcohol
