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.
Answer:Aged cheeses
Explanation:Aged cheeses are rich in tyramine, which interacts with MAO inhibitors to raise blood pressure to life-threatening levels. Patients taking MAO inhibitors should be taught to avoid tyramine-rich foods. Chianti wine contains tyramine, but other alcoholic beverages do not. Brussels sprouts and cabbage are foods rich in vitamin K, which can interfere with the effects of warfarin. Grapefruit juice inhibits CYP3A4 and interferes with the metabolism of many medications.
Answer:
any type of bodily fluid is lost.
Explanation:
Answer:
TRUE
Explanation:
In the cardiovascular system, the blood flows from <u>high pressure to low pressure.</u>
In the ventricular ejection phase, when the muscles of the ventricles contract, the<u> pressure gradient in ventricles rises</u>. This increases in the <u>pressure in the ventricles exceeds the pressure in the pulmonary artery </u>and aorta, thus opening pulmonary and aortic valves and ejecting the blood from the heart.
Answer:
When administering adenosine, the nurse must inject it through the IV push route.
Explanation:
Adenosine belongs to the drug class of antidysrhythmics and hence proper care and monitoring should be taken to avoid any adverse or side effects while or after administering the dose. Adenosine should be injected only via the IV route. The injection should be made close to an IV site, so as to flush each time with NS. The patient’s heart conditions should be monitored continuously on an ECG monitor and blood pressure machine. The dosage levels should match with the age appropriately. Adverse reactions of adenosine may include transient arrhythmias, bronchospasms, dyspnea etc.
