Which of the Following Is NOT One of the Four

question 45

Multiple Choice

Which of the following is NOT one of the four subtypes of specific phobia listed in the DSM-IV?

• A) animal
• B) specific situation
• C) death
• D) blood injection
• E) environmental

---

Definitions:

Cardiac Conduction System

A system of specialized muscle tissues in the heart that initiates and coordinates the contraction of the heart, regulating its rhythm.

Purkinje Fibers

Specialized fibers in the heart that help regulate the heart's rhythm by conducting electrical impulses swiftly.

AV Bundle

The His bundle, a group of specialized cardiac muscle cells designed for conducting electricity, conveys the electrical signals from the AV node to the apex where the fascicular branches begin.

Cardiac Cycle

The sequence of events that occur in the heart during one complete heartbeat, encompassing both diastole and systole phases.