Which of the following statements is the most accurate description of the sliding filament mechanism?
A) Thick filaments shorten while thin filaments remain unchanged.
B) Z discs slide over the thick and thin filaments.
C) Both thick and thin filaments shorten.
D) Thin filaments slide past thick filaments towards the M line.
Answer: D
You might also like to view...
The electron transport system:
a. occurs in the mitochondria b. follows the citric acid cycle c. follows glycolysis d. both A and B above
Graded potentials result from the opening of ______.
Fill in the blank(s) with the appropriate word(s).
The figure illustrates keratinization in the epidermis. What layer of the epidermis is "D"?
A. stratum granulosum B. stratum corneum C. stratum lucidum D. stratum spinosum E. stratum basale
Which of the following is a sympathetic effect?
A. constriction of the pupils of the eyes B. constriction of the bronchioles in the lungs C. contraction of the urinary bladder D. increased heart rate E. increased gastric secretions