Which of the following does not play a role in flow of lymph fluid?
A. Contractions of lymphatic vessels
B. Thoracic (respiratory) pump
C. Skeletal muscle contraction
D. The lymphatic pump
E. Valves
Answer: D
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List the important features of the ECG, and indicate what each represents
A) P wave (atrial repolarization), QRS complex (ventricular depolarization), T wave (ventricular repolarization)
B) P wave (atrial repolarization), QRS complex (ventricular depolarization), T wave (atrial depolarization)
C) P wave (atrial depolarization), QRS complex (ventricular depolarization), T wave (ventricular repolarization)
D) P wave (atrial depolarization), QRS complex (ventricular depolarization), T wave (atrial depolarization of the next cycle)
E) P wave (atrial contraction), QRS complex (ventricular contraction), T wave (ventricular relaxation)
The adult hip bone consists of _____ regions.
A. 1 B. 2 C. 3 D. 4
Which of these happens first in an adrenergic synaptic transmission?
A) ATP is converted to cyclic AMP B) G protein binds to adenylate cyclase C) Adenylate cyclase is activated D) Cyclic AMP induces several effects in the cell E) G protein dissociates from the NE receptor
The bulk of each tooth consists of a mineralized matrix similar to that of bone called
A) enamel. B) cement. C) dentin. D) pulp. E) periodontium.