The optimal length (Lo) of a skeletal muscle cell is
A. the shortest length the muscle can achieve while attached to bone, because the amount of overlap between thick and thin filaments is maximal then.
B. the length at which thin filaments from opposite sides of a sarcomere overlap.
C. the length at which the muscle can generate its maximum tetanic tension.
D. generally the length attained when the joint it crosses is fully extended.
E. the only length at which any tension can be generated by the muscle cell.
Answer: C
You might also like to view...
The hairpin-shaped segment of the nephron is the
A) loop of Henle. B) proximal tubule. C) distal tubule. D) minor calyx. E) vasa recta.
In the following MRI of a woman with an anteverted and anteflexed uterus, the arrow indicates the:
A) body of the uterus. B) opening of the vagina. C) external os (opening of the cervix). D) bladder. E) rectum.
Which nutrient supplies the largest part of an animal's diet?
What will be an ideal response?
Diagnostic tests on a 50-year-old male show the following results: IRV = 3000 ml, ERV = 900 ml, tidal volume = 500 ml, residual volume = 1300 ml What is this patient's vital capacity?
A) 5700 ml B) 5200 ml C) 4400 ml D) 3900 ml E) 3500 ml