Which of the following become connected by myosin cross-bridges ...

[penza]

Which of the following become connected by myosin cross-bridges during muscle contraction?
 A) thin filaments and thick filaments
  B) thick filaments and titin filaments
  C) z disks and actin filaments
  D) thick filaments and t-tubules
  E) thin filaments and t-tubules

Question 2

The narrow space between the synaptic terminal and the muscle fiber is the
 A) synaptic knob.
  B) motor end plate.
  C) motor unit.
  D) synaptic cleft.
  E) M line.

[josephsuarez]

Answer to Question 1

A

Answer to Question 2

D

[penza]

Thank you!

[josephsuarez]

Always glad to help...