Fluid transport to and from the lungs is provided by which of the following? 1. Bronchial circulation 2. Lymphatic system 3. Pulmonary circulation
a. 2 and 3 only
b. 1 and 3 only
c. 2 only
d. 1, 2, and 3
ANS: D
The vascular supply of the lungs is composed of the pulmonary and bronchial circulations. The pulmonary circulation carries mixed venous blood from the systemic circuit to the lungs to in-crease O2 and reduce carbon dioxide content of blood. The bronchial circulation provides sys-temic arterial blood to the airways and pleura to support their metabolic needs. A network of lymphatics is also involved in fluid transport from the lungs. The lymphatic system removes fluid from the lung tissue and pleural space and returns it to the systemic circulation.
You might also like to view...
What roles can computers play in the field of public health?
What will be an ideal response?
Preparation of formal resolution to adopt new fire and life safety code language should include the nature of the legislation and the authority of the community
A. True B. False
To assign a proper code for a neoplasm in ICD-10, the documentation must state whether it is benign, ________, in situ, or of uncertain behavior.
Fill in the blank(s) with the appropriate word(s).
Most of the sarcoplasm is filled with long structures called _______________, which produce the striations observed in skeletal and cardiac muscle cells.
Fill in the blank(s) with the appropriate word(s).