Answer:
The correct answer is D.
Explanation:
Papillary muscles, attached via chordae tendineae, help to close the valves and prevent regurgitation.
Pectinate muscles are parallel ridges in the walls of the atrium of the heart, mainly in right atrium. They can stretch during adverse loading conditions, to <em>help the right atrium to dilate without much wall stres</em>s.
Acute leukemia happens when most of the abnormal blood cells don't mature and can't carry out normal functions. It can get bad very fast. Chronic leukemia happens when there are some immature cells, but others are normal and can work the way they should. It gets bad more slowly than acute forms do
Answer:Hand hygiene.
Use of personal protective equipment (e.g., gloves, masks, eyewear).
Respiratory hygiene / cough etiquette.
Sharps safety (engineering and work practice controls).
Safe injection practices (i.e., aseptic technique for parenteral medications).
Sterile instruments and devices.
Clean and disinfected environmental surfaces.
Explanation:
Because you always have to learn
