Discuss the application for a drug which lowers the action potential threshold
What will be an ideal response
Answer: Drugs which reduce the AP threshold has wide application as antiarrhythmic drugs, to abolish tachyarrhythmias and to treat hyperkalemia.
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A woman involved in a high speed car accident initially seems fine, but soon develops difficulty breathing. You suspect she is bleeding into one of her body cavities. Given her symptoms, which one?
A) Spinal B) Cranial C) Thoracic D) Abdominal
Which of the following muscles would be considered an antagonist to the gluteus maximus?
A) semitendinosus B) biceps femoris C) semimembranosus D) rectus femoris
The placenta originates only from the maternal endometrium.
a. true b. false
Which of the following is an accurate description of breathing mechanics?
A. The relaxation of the diaphragm expands the thoracic cavity, creating a vacuum that draws in air. B. The contraction of the diaphragm expands the thoracic cavity, creating a vacuum that draws in air. C. The contraction of the diaphragm reduces the thoracic volume, creating a positive pressure that forces air out. D. The contraction of the diaphragm expands the thoracic cavity, creating positive pressure that draws in air.