Describe the visceral pleura, parietal pleura and pleural cavity.

Visceral pleura: membrane that is in direct contact with the lungs

Parietal Pleura: membrane that is in direct contact with the inner part of the rib cage

Pleural Cavity: Space in between visceral and parietal pleura

Explanation:

The pleura is a membrane that covers the lungs, the mediastinum and the diaphragm, it divides in parietal and visceral. The parietal pleura is the external membrane that surrounds the inner part of the rib cage at the level of the lungs, lining also part of the diaphragm and the mediastinum. When the parietal pleura extends inwards enveloping the lungs it becomes the visceral pleura.  These membranes protect the lungs and in between them there is a fluid filled space (pleural cavity) that cushions the respiratory movements, among other functions.

answer:

364 lol

answer: no, they are not.*

although rubber bands that contain excessive amounts of dye, toxins, or additives are sometimes toxic, most rubber bands do not cause any health issues. since they are typically made of latex, (a natural substance that is extracted from trees) they are not dangerous in any way if you chew them or accidentally ingest a piece of rubber band. however, chewing rubber bands does pose a choking hazard and is not a good habit to have.

*depending on the type of rubber band. the typical rubber bands that you see at stores are not toxic, but other types of rubber or latex that contains certain chemicals may be unhealthy and hazardous.