MEDICAL PHYSIOLOGY

PHYSIOLOGY

CARDIOVASCULAR PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Give a reason why cardiac nucleus located centrally and not peripherally
A
less myofibril
B
more myofibril
C
more glycogen
D
less glycogen
Explanation: 

Detailed explanation-1: -Cardiac muscle cells (cardiomyocytes) are striated, branched, contain many mitochondria, and are under involuntary control. Each myocyte contains a single, centrally located nucleus and is surrounded by a cell membrane known as the sarcolemma.

Detailed explanation-2: -Abstract. Many types of large cells have multiple nuclei. In skeletal muscle fibers, the nuclei are distributed along the cell to maximize their internuclear distances. This myonuclear positioning is crucial for cell function.

Detailed explanation-3: -Cardiac muscle fibers, or cardiomyocytes, like skeletal muscle fibers, are striated and have a single, central nucleus. However, two or more nuclei may be found occasionally.

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