The muscles taking<br/>part in normal inspiration include A: diaphragm and intercostales<br/>externi. B: diaphragm and intercostales interni. C: intercostales externi and intercostales<br/>interni. D: diaphragm and pectoralis<br/>major.

In order to inhale, the size of the thoracic cavity has to increase in order to decrease the internal pressure (compared to atmospheric pressure). In order to accomplish this task, which of the following must occur? A: the diaphragm muscle relaxes and the external intercostals contract B: the diaphragm muscle contracts and the external intercostals relax C: the diaphragm muscle and external intercostals contract D: the diaphragm muscle and external intercostals relax

"appendio-" means A: diaphragm B: electrolyte C: exocrine D: appendix

When the diaphragm and external intercostals muscles contract, which<br/>of the following actions does NOT occur ____? A: Air moves into the lung B: The intrapleural pressure increases C: The diaphragm moves inferiorly D: The intrapulmonary pressure decreases

Which of the following muscle is voluntary muscle？ A: cardiac muscle B: smooth muscle C: biceps D: diaphragm

Ventilation in birds is accomplished by expansion and contraction of the ( ). A: air sacs B: trachea C: lungs D: diaphragm E: air capillaries

The main power in delivery is: () A: Uterine contraction B: Abdominal muscles and C: diaphragm contraction D: levator ani muscle contractility E: The psyche

Which of the following apertures lies in the central tendon of diaphragm? A: Oesophagus B: Inferior vena cava C: Thoracic duct D: Abdominal aorta

The lube oil pump used in a diesel engine is a( ) usually. A: volute pump B: centrifugal pump C: diaphragm pump D: gear pump

The main productive force in childbirth is A: Uterine contractility B: Diaphragm contractility C: Levator ani muscle contractility D: Abdominal muscle contractility