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WorksheetsQuiz on Muscle Histology
Total questions: 5
Worksheet time: 15mins
Which of following protein regulates the length of the actin polymers during myogenesis?
Myomesin
Titin
Nebulin
α-actinin
Which of following structures is NOT found in the smooth muscle cells?
Caveolae
Dense body
Calmodulin
T-tubules
Identify the INCORRECT statement:
White muscle fibers depend largely on anaerobic metabolism
There is a modified perimysium around the muscle spindle
In a muscle with coarser movements, a motor unit innervates a single muscle fibers
In the absence of ATP, the actin-myosin cross-bridges become stable
During skeletal muscle contraction, which of following does NOT occur?
Neither the thick nor the thin filaments change their length
Pivot in the myosins
Sliding of filaments
The stimulation is propagated to more distant fibers via gap junctions
In cardiac muscle, how many transverse tubule crosses in the vicinity of two sarcomeres?
1
2
2.5
3
