Question

1. Which of the following is NOT a membrane? a. skin b. serosa c. mucosa d. pericardium e. All are membranes. 2. Which of the following statements about the mucosa are TRUE? a. Mucosa refers to the fact that this membrane is always wet. b. Mucosa line the cavities of all hollow organs that open to the exterior. C. Mucosa of the mouth and esophagus contain stratified columnar epithelial cells. d. All mucosa produce large amounts of lubricating mucus.

Answer 1

1. Which of the Folloining is not a membrane ? Covering membrune body Eissue. Flusinl.c31 :-) All are membrane Explaination :- Option a : Skin act as a barotective made up of the epithelial membrane for the body minimising loss of lalater from the Skin is made up of two main tay.com (A) Epidermis 6 Dermis. Option b : Serosa is the outer most membrane Layer made up of Squamous epithecium and Conne -ctive tissue. It is continous with the mesentery. Since us Lies outside the Oesophagus the Coelom its Ourer inlall is not covered by peritoneum Option co Mucosa or Mucous membrane is the innermost layer Lining the tumen of the alimen- Canalo It -tary so named because it Secrete mucus to Lubricate the inner Lining o the gut. This layer form irregular Fold in the Stomach. Mucosa is Composed of three layer Muscularis mucoser. ® Lamina propria € pithelium. Optiond o pericardial membrane is two Layer Sac consist of outer parietal pericardium and innes visceral pericardium attached to the heart. is A c ed