The lungs are held to the thorax wall by the smooth muscles of the lungs. True or False

False

Explanation

The lungs are two in number and is the main organ for respiration in the body.

The thorax is also known as the chest. It has various parts attached to it such as the heart, lungs, thymus etc.

The mesothelial cells of the pleural membrane create pleural fluid which serves two purposes:

Lubrication

Attachment of the lungs to the thorax aren’t hereby done by the smooth muscles of the lungs.

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.