The alveolar cell that secretes pulmonary surfactant is the
A. alveolar type II cell.
B. alveolar type I cell.
C. alveolar macrophage.
D. dust cell.
E. squamous alveolar cell.
A
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The enzyme catalase neutralizes hydrogen peroxide produced in hair follicles.
Answer the following statement true (T) or false (F)
93. The type of tissue that helps mechanically mix materials within the digestive system organs is ________ muscle
Fill in the blank with correct word.
Matching
A) Smooth muscle B) Skin epidermis C) Tendon D) Cardiac muscle 17) Derived from mesenchyme. 18) Has a surface to which nothing is attached. 19) Moves blood through the body. 20) Moves food through the GI tract.
The specific structures that make up the root of the penis are (the)
A) crura. B) bulbs. C) spongy urethra. D) glans. E) All of the answers are correct.