5.6 Flashcards
What portion of a serious membrane covers the outer surface if organs?
The visceral layer
What is an effusion? What is ascites?
Effusion is the escape of fluid from its normal vessels into a body cavity, where it may accumulate in large amounts. Ascites is the presence of an effusion in the peritoneal space of the abdominopelvic cavity and can be caused by a wide range of pathologic conditions (congestive heart failure, nephrosis, malignant neoplastic disease, and peritonitis among them).
What is another name for cutaneous membrane?
Integument
Where are mucous membranes found? What functions do they perform?
Location:
* Mucous membranes line organs that connect with the external environment, including the digestive, respiratory, urinary, and reproductive tracts (e.g., mouth, esophagus, stomach, intestines, colon, nasal passages, trachea, bladder, uterus).
Functions:
* Secretion: Produce mucus (via goblet cells or glands) that lubricates surfaces and reduces friction.
* Protection: Mucus traps pathogens and foreign particles, preventing them from entering deeper tissues.
* Absorption: In areas like the intestine, they facilitate nutrient absorption into the bloodstream.
Membranes are composed of What two tissue types?
Epithelial and connective tissue
In What ads are muscle fibers uniquely adapted for contraction?
Muscle fibers are composed of specialized proteins called actin and myosin, which are arranged into microfilaments. Contraction, or shortening, of the muscle cell occurs when the microfilaments slide over one another like the bars in an old- fashioned slide rule. In this way, the cells change shape and can be made shorter or longer
