In a complete AV node block, ________.

A. the ventricles contract due to the Purkinje fiber pacemaker
B. no signals pass into the ventricles
C. the atria will be paced by the SA node
D. All of the choices are correct.


Answer: D

Anatomy & Physiology

You might also like to view...

Parasympathetic innervation decreases the heart rate, but generally tends to have no effect on the force of contractions.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Cerebrospinal fluid is produced by the

A. choroid plexus. B. dura mater. C. pia mater. D. ventricles.

Anatomy & Physiology

Which of the following is NOT true of acute bronchitis?

A. Involves the primary and secondary bronchi B. Presents with a deep productive cough C. Produces thick fluid in the alveoli D. Usually begins with a viral URI that leads to a bacterial infection

Anatomy & Physiology

This figure shows a lateral view of the muscles of facial expression. What muscle does number 2 indicate?

A. Buccinator B. Sternocleidomastoid C. Masseter D. Platysma E. Temporalis

Anatomy & Physiology