PATHOLOGY MCQ
HEART
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which of the following is a difference between cardiac muscle and skeletal muscle?
|
|
unlike skeletal muscle cells, cardiac muscle cells do not rely on an influx of calcium ions for depolarization
|
|
|
unlike skeletal muscle, cardiac muscle is not striated
|
|
|
unlike skeletal muscle, cardiac muscle does not use a sliding filament mechanism for contraction
|
|
|
unlike skeletal muscle cells, cardiac muscle cells can be autorhythmic
|
Explanation:
Detailed explanation-1: -Unlike skeletal muscle cells, cardiac muscle cells do not rely on calcium ions for contraction. Unlike skeletal muscle, cardiac muscle does not use a sliding filament mechanism for contraction. Unlike skeletal muscle cells, cardiac muscle cells can be autorhythmic.
Detailed explanation-2: -Cardiac Muscles: Cardiac muscles are found only in the heart. Skeletal Muscles: Skeletal muscles are found attached to bones and skin. Smooth Muscles: Smooth muscle cells line walls of the internal organs.
There is 1 question to complete.