Place the following parts of the cardiac conduction system in the order in which they transmit the action potential
1. atrioventricular (AV) bundle
2. Purkinje fibers
3. sinoatrial (SA) node
4. right and left bundle branches
5. contractile cells of cardiac muscle tissue
6. atrioventricular (AV) node
A) 3, 6, 1, 4, 2, 5 B) 3, 1, 6, 4, 5, 2 C) 3, 6, 4, 1, 2, 5 D) 3, 1, 6, 4, 2, 5
Answer: A
You might also like to view...
The superior nasal concha is a part of which bone?
A) ethmoid B) maxilla C) vomer D) sphenoid
________ is a condition in which an artery has become abnormally widened because of a localized weakness in the arterial wall.
A. Aneurysm B. Ischemia C. Gangrene D. Phlebitis
Which hormone, produced by the pituitary gland, is responsible for decreased urination?
A) Luteinizing hormone B) Antidiuretic hormone C) Prolactin D) Adrenocorticotropic hormone
Because people suffering from sleep apnea are asleep, they oftentimes do not know that they have the condition. Diagnosis may require __________, which is a battery of diagnostic studies performed while the person is asleep.
A. echocardiogram studies B. polysomnography studies C. a colonoscopy D. ECG studies