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.
According to the scope of medical-surgical nursing, when recently assigned to a medical-surgical clinical unit, the nurse will be expected to provide care to hospitalized adults with acute and chronic illnesses.
<h3>What is medical - surgical clinical unit?</h3>
The unit which provides intensive care to the adults who are hospitalized with a wide variety of conditions such as pneumonia, stroke and fractures is called the Medical - Surgical Unit.
Usual patients of the Med/Surg Unit are patients experiencing chronic condition, preparing or recovering from surgery any acute illness or injury.
The duty includes monitoring vital signs, administering medications and maintaining health records.
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It’s important to a good and long living life.
Any answer that is equal to -300 would be correct.
In behavioural terms, drugs like aspirin are considered negative reinforcers because they stop a person from feeling pain.
Negative reinforcement is a method that can be used to help teach specific behaviours. With negative reinforcement, something uncomfortable or otherwise unpleasant is taken away in response to a stimulus. Over time, the target behaviour should increase with the expectation that the unpleasant thing will be taken away.
For negative reinforcement to work, whatever is taken away must be taken away immediately after the behaviour in question. The end result is to get whatever behaviour is happening to continue and even increase.
Example :
A person hears a loud alarm. They push the STOP button on the alarm to make the noise stop. Now whenever the alarm goes off, they push the STOP button as quickly as they can.
- Before behaviour: Loud alarm
- Behaviour: Person turns alarm off
- After behaviour: No more annoying sound
- Future behaviour: Person pushes STOP every morning to quiet alarm
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