Which is the correct path of an electrical excitation from the pacemaker to a cardiocyte in the left ventricle (LV)?
A) Sinoatrial (SA) node ? atrioventricular (AV) node ? Purkinje fibers ? atrioventricular (AV) bundle ? cardiocyte in LV
B) Sinoatrial (SA) node ? atrioventricular (AV) node ? atrioventricular (AV) bundle ? Purkinje fibers ? cardiocyte in LV
C) Atrioventricular (AV) node ? Purkinje fibers ? atrioventricular (AV) bundle ? sinoatrial (SA) node ? cardiocyte in LV
D) Sinoatrial (SA) node ? atrioventricular (AV) bundle ? atrioventricular (AV) node ? Purkinje fibers ? cardiocyte in LV
E) Atrioventricular (AV) node ? sinoatrial (SA) node ? atrioventricular (AV) bundle ? Purkinje fibers ? cardiocyte in LV
B
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A. metaphase. B. anaphase. C. telophase. D. prophase. E. S phase.
Malpighian tubules are part of the ______ excretory system
a. avian b. mammalian c. arthropod d. reptilian e. amphibian
Adrenal androgens
A. reduce the inflammatory response. B. stimulate growth of pubic hair in females. C. cause reabsorption of K+ by the kidney. D. decrease the sex drive. E. are produced in the adrenal medulla.
Presence of pus
What will be an ideal response?