GENERAL HISTOLOGY

Detailed explanation-1: -Which statements characterize mucous membranes? They line visceral body cavities. They line the digestive tract. They secrete mucous.

Detailed explanation-2: -Each of the following statements concerning the microvilli is true, EXCEPT: A – are plasmalemma projections; B – contain microtubules; C – amplify cell surface area; D – form the brush border of intestinal epithelium; E – contain microfilaments.

Detailed explanation-3: -Epithelial tissues act as coverings controlling the movement of materials across the surface. Connective tissue integrates the various parts of the body and provides support and protection to organs. Muscle tissue allows the body to move. Nervous tissues propagate information.

Detailed explanation-4: -MUC7, a monomeric mucin, and MUC19, a polymeric secreted mucin, are expressed primarily in salivary glands but are also expressed in airway epithelial cells.