Answer:
The correct answer will be option A - A-band.
Explanation:
The sarcomere is the repeating unit of a myofibril which extends between two z-lines. Under a microscope, a sarcomere can be divided into A- band which is composed of thick myosin only and I-band which consists of thin filament that is actin only.
When a muscle contract then actin and myosin comes in overlapping position due to which I-band shortens and between two z-lines and overlapped structure of thin actin filaments over thick myosin filaments (A-band) is seen.
Therefore, only A-band is seen between two z-lines in a contracted muscle thus, option A is the correct answer.
Diseases that are referred to as emerging infectious diseases have only been discovered in the past fifty years. This is a false statement.
<h3>What are emerging infectious diseases?</h3>
Emerging infectious diseases are those diseases that have recently affected a known population within the pass 20 years
Therefore, Diseases that are referred to as emerging infectious diseases have only been discovered in the past fifty years is a false statement.
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The most crucial intervention is the UWSD Unit and tubing when turning a patient who has a right-sided hemothorax and 250 ml of dark blood streams into the chest tube container.
<h3>What should come first in the treatment of a patient with a chest tube?</h3>
Coughing, shifting positions often, and deep breathing encourage fluid drainage and lung expansion. Avoid forceful manipulation of the chest tube, such as stripping or milking, as this can lead to extremely negative pressures inside the tube and helps little to keep it open.
<h3>When a chest tube comes out, what should a nurse do?</h3>
Remain composed throughout an unexpected chest tube removal. Cover the open insertion site as soon as possible with a gloved hand, calling for assistance all the while remaining beside the patient. Request petroleum gauze, dry gauze, and tape to finish the dressing and cover the area.
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Answer:
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Explanation:
It was the american hospital association. It was discovered in the early 1970’s