Answer:
try and condition before (your not gonna be able to run a 6 minute mile at first) drink alot of water, get sleep, and eat healthy. I am a cross country runner so I should know.
Explanation:
A) Writing everything down in your fitness log
Answer:
B
Explanation: It is very easy to make small mistakes like not paying attention to whether it says AM or PM. So, hospitals use 24 hour time to prevent any possible mistakes with the time :)
Answer:
Lumen corresponds to the central opening of a vessel (option d).
Explanation:
From the biological point of view, lumen is the internal space of any structure or tubular organ, whose purpose is the conduction of substances through it.
In the case of blood vessels, the lumen is a central space covered by a simple epithelium, called the endothelium, which ensures the passage of blood in a fluid form.
The other options do not correspond to the answer:
<em> a. </em><u><em>Vessel that empties into the right atrium</em></u><em> is the vena cava</em>
<em> b. </em><u><em>Fibrous sac around the heart </em></u><em>is the pericardium.
</em>
<em> c. </em><u><em>Structure that keeps fluid moving forward</em></u><em>, it is a blood vessel.
</em>
<em> e. </em><u><em>Lower, pointed region of the heart</em></u><em>, corresponds to the cardiac apex.</em>
