MICROANATOMY

Previous
Next

EPITHELIUM CONNECTIVE TISSUE SKIN

EPITHELIA GLANDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
TRUE/FALSE:Under the microscope, cardiac muscle cells appear as long cylindrical cells that are multinucleated and possess obvious striations.
A
TRUE
B
FALSE
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Skeletal muscle cells are long, cylindrical, and striated. They are multi-nucleated meaning that they have more than one nucleus. This is because they are formed from the fusion of embryonic myoblasts. Each nucleus regulates the metabolic requirements of the sarcoplasm around it.

Detailed explanation-2: -Skeletal muscle cells are multinucleated from the fusion of muscle cells. Smooth muscle cells are strictly mononucleated, and cardiac muscle cells are mononucleated in humans.

Detailed explanation-3: -Cardiac muscle fibers are long cylindrical cells with one or two nuclei. The nuclei are centrally situated like that of smooth muscle. Cardiac muscle sarcoplasm has a great amount of mitochondria to meet the energy demands.

There is 1 question to complete.
Previous
Next