When the diaphragm and external intercostal muscles contract,
A) intrapulmonary pressure increases.
B) expiration occurs.
C) intrapleural pressure decreases.
D) the volume of the lungs decreases.
E) All of the answers are correct.
C) intrapleural pressure decreases.
You might also like to view...
Which statement correctly explains why hair appears the way it does?
A) Kinky hair has flat, ribbonlike hair shafts. B) Perfectly round hair shafts result in wavy hair. C) Air bubbles in the hair shaft cause straight hair. D) Gray hair is the result of hormonal action altering the chemical composition of melanin.
In the process of oogenesis, a polar body:
A) is formed before fertilization. B) is formed after fertilization. C) normally receives most of the cytoplasm of the cell. D) is a very cold cell. E) both a and b
Gas exchange between the air in the lungs and the blood takes place in the ________.
A. primary bronchi B. alveoli C. trachea D. respiratory bronchi E. terminal bronchioles
Which of the following is an axial muscle?
A) serratus anterior B) sternocleidomastoid C) deltoid D) rhomboid major E) latissimus dorsi