Q: Are lungs the primary organs of the respiratory system in humans and many other animals including a few fish and some snails? ¶
A: Yes.
Q: Is lung the dynein protein DNAH5 in ciliated cells? ¶
A: Yes, and the secreted SCGB1A1 protein in mucus secreting goblet cells of the airway mucosa.
Q: Are lungs surrounded by the pulmonary pleurae? ¶
A: Yes.
Q: Is lung shown in the table? ¶
A: Yes.
Q: Is lung the intercellular signalling protein – sonic hedgehog? ¶
A: Yes, and fibroblast growth factors FGF10 and FGFR2b, and bone morphogenetic protein BMP4.
Q: Are lungs part of the lower respiratory tract that begins at the trachea and branches into the bronchi and bronchioles? ¶
A: Yes, and which receive air breathed in via the conducting zone.
Q: Is lung inflamed for a long period of time? ¶
A: Yes.
Q: Are lungs located near the backbone on either side of the heart? ¶
A: Yes.
Q: Are lungs inflated by expanding the rib cage? ¶
A: Yes.
Q: Is lung divided into lobes by the infoldings of the pleura as fissures? ¶
A: Yes.
Q: Are lungs filled with fetal lung fluid? ¶
A: Yes.
Q: Is lung greatly reduced? ¶
A: Yes, or even absent.
Q: Are lungs part of the lower respiratory tract? ¶
A: Yes, and accommodate the bronchial airways when they branch from the trachea.
Q: Are lungs simpler in structure? ¶
A: Yes, and similar to that of typical amphibians.
Q: Are lungs seen as a developmental adaptive stage from water-living to enable land-living? ¶
A: Yes, or from fish to amphibian.
Q: Is lung an arched groove for the azygos vein, and above this is a wide groove for the superior vena cava and right brachiocephalic vein? ¶
A: Yes, behind this, and close to the top of the lung is a groove for the brachiocephalic artery.
Q: Is lung enclosed within a pleural sac which allows the inner and outer walls to slide over each other whilst breathing takes place? ¶
A: Yes, and without much friction.
Q: Are lungs located in the chest on either side of the heart in the rib cage? ¶
A: Yes.
Q: Is lung indented by a number of nearby structures? ¶
A: Yes.
Q: Are lungs called "circulatory lungs"? ¶
A: Yes, as distinct from the "bellows-type lungs" found in most other animals.
Q: Are lungs not capable of expanding themselves? ¶
A: Yes, and will only do so when there is an increase in the volume of the thoracic cavity.
Q: Are lungs involved in the blood's acid-base homeostasis by expelling carbon dioxide when breathing? ¶
A: Yes.
Q: Are lungs very undeveloped with only around one sixth of the alveoli of the adult lung present? ¶
A: Yes.
Q: Is lung divided into two lobes? ¶
A: Yes, and an upper and a lower, by the oblique fissure, which extends from the costal to the mediastinal surface of the lung both above and below the hilum.
Q: Are lungs formed the fetus is held in the fluid-filled amniotic sac and so they do not function to breathe? ¶
A: Yes.
Q: Is lung surrounded by a serous membrane of visceral pleura? ¶
A: Yes, and which has an underlying layer of loose connective tissue attached to the substance of the lung.
Q: Are lungs supplied by nerves of the autonomic nervous system? ¶
A: Yes.
Q: Are lungs filled with fluid secreted by the lungs and are not inflated? ¶
A: Yes.
Q: Are lungs gas exchange between the lungs and the blood? ¶
A: Yes.
Q: Is lung bigger than the left? ¶
A: Yes, and which shares space in the chest with the heart.