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:
I believe it;s the difference in pressure
Explanation:
This is caused by the diaphragm contracting and therefore expanding the thoracic cavity. This increase in volume causes a decrease in pressure.
Answer:
life of African-Americans in rural south of 1940s
Answer:
C34.11 and G89.3
Explanation:
C34.11 and G89.3 are billable ICD codes that are used to specify a diagnosis of malignant neoplasm of upper lobe, right bronchus or lung.
A 'billable code' is detailed enough to be used to specify a medical diagnosis.
Those codes are used to specify for Neoplasm related pain both acute and chronic.
