What is the functional role of the T tubules?
A) synthesize ATP to provide energy for muscle contraction
B) enhance cellular communication during muscle contraction
C) stabilize the G and F actin
D) hold cross bridges in place in a resting muscle
B
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A _________ is the contractile unit of a skeletal muscle.
Fill in the blank(s) with the appropriate word(s).
Presence of a synovial cavity, articular cartilage, synovial membrane, and ligaments are characteristics of what type of joint?
A) suture B) synchondrosis C) symphysis D) hinge joint
What structure produces the fluid found in the anterior chamber?
A) Ciliary body B) Iris C) Cornea D) Conjunctiva
In mammalian lungs gas exchange occurs
a. in the bronchioles. b. Across the surface of the type II cells. c. in the alveoli. d. the pores of Kohn. e. two of these.