The main power in delivery is: ()
A: Uterine contraction
B: Abdominal muscles and
C: diaphragm contraction
D: levator ani muscle contractility
E: The psyche
A: Uterine contraction
B: Abdominal muscles and
C: diaphragm contraction
D: levator ani muscle contractility
E: The psyche
举一反三
- The main productive force in childbirth is A: Uterine contractility B: Diaphragm contractility C: Levator ani muscle contractility D: Abdominal muscle contractility
- The factors affecting delivery are ( ). A: uterine action B: birth canal C: uterine contractility (rhythmicity, symmetry, polarity, retraction<br/>effect) D: contractility of abdominal wall muscle and diaphragm and<br/>contractility of levator ani muscle
- The following statement about the slow wave potential of gastrointestinal smooth muscle, the correct right narratives are A: Can control the rhythm of smooth muscle contraction B: Can make the membrane potential close to the threshold potential level C: No effect on the rhythm of smooth muscle contraction D: Must be accompanied by the contraction of smooth muscle
- Ventilation in birds is accomplished by expansion and contraction of the ( ). A: air sacs B: trachea C: lungs D: diaphragm E: air capillaries
- The structure that makes up the joint tendon is () A: Outer margin of rectus sheath and external oblique muscle B: Internal oblique and transverse abdominal muscles C: External oblique and internal oblique D: Transabdominal muscle and transverse fascia E: External abdominal oblique muscle, internal abdominal oblique muscle<br/>and transverse abdominal muscle