After nervous stimulation stops, what prevents ACh in the synaptic cleft from continuing to stimulate contraction?
A) calcium ions returning to the terminal cisternae
B) the tropomyosin blocking the myosin once full contraction is achieved
C) acetylcholinesterase destroying the ACh
D) the action potential stops going down the overloaded T tubules
C) acetylcholinesterase destroying the ACh
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________ is the term used to indicate a heart rate that is slower than normal.
A) Cardiac tamponade B) Bradycardia C) Angina D) Tachycardia E) Coronary ischemia
What does this structural formula, N?N, indicate?
A) Three atoms of nitrogen are double bonded. B) Two atoms of nitrogen share three pairs of electrons. C) An ionic bond holds the two atoms of nitrogen together. D) Two atoms of nitrogen are held together by hydrogen bonds.
Which artery is usually used to determine blood pressure?
A. Brachial artery B. Carotid artery C. Renal artery D. Coronary artery
Where is the mental foramen in the diagram?
a) C b) D c) E d) F e) None of these answer choices are correct.