The fastest rate of autorhythmicity is normally carried out by the
a. AV bundle.
b. AV node.
c. bundle of His.
d. Purkinje fibers.
e. SA node.
E
You might also like to view...
An injection of a local anesthetic into the spinal column is called a(n) ________
A) epidural B) subdural C) cutaneous D) epiphysis
The ability to consciously control urination depends on your ability to control which muscle?
A) detrusor B) internal urethral sphincter C) external urethral sphincter D) trigone E) bulbospongiosus
The foramen ovale ________.
A. closes after birth due to decreased pulmonary vascular resistance B. has no importance in fetal respiratory physiology C. normally shunts blood between the pulmonary artery and aorta D. normally shunts blood between the right and left ventricles
Which of the following statements regarding the dissolving of blood clots is FALSE?
A. Activation of the reactions that lead to blood clotting ultimately lead to blood clot dissolution. B. Tissue plasminogen activator (t-PA) is secreted by endothelial cells. C. Blood clots are digested by plasmin. D. Plasminogen is an inactive precursor of the enzyme plasmin. E. It involves aggregation of soluble fibrin fragments into fibrin.