Cross bridges
a. extend between the A and I bands and bend to pull the bands together during muscle contraction.
b. are formed by the globular heads of the myosin molecules.
c. link troponin and tropomyosin to actin to form the thin filament.
d. extend from the thick filaments and bind to actin, then bend to pull the thin filaments in closer together during muscle contraction.
e. two of these answers.
E
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An alternate term for the zygomatic bone is ____________________.
Fill in the blank(s) with the appropriate word(s).
In the diagram of skin shown below, where is the reticular region of the dermis?
a) E b) F c) G d) H e) A
Projections of loose connective tissue from the dermis, which extend upward between the adjacent ridges of the epidermis, are called
A) epidermal ridges. B) strata. C) reticular layers. D) accessory structures. E) dermal papillae.
Connective tissues contain abundant cells that are on contact with one another.
Answer the following statement true (T) or false (F)