An Ultrasound Characteristic of the Normal Internal Carotid Artery (ICA)

question 3

Multiple Choice

An ultrasound characteristic of the normal internal carotid artery (ICA) includes which one of the following?

• A) Anterior and medial origination at the bifurcation
• B) Low-resistance Doppler signal
• C) Cervical branches
• D) Smaller lumen

---

Definitions:

Conditioned Stimulus

A previously neutral stimulus that, after association with an unconditioned stimulus, elicits a conditioned response.

Classical Conditioning

A training mechanism in which two stimuli are frequently paired together; over time, the response that was originally caused by the second stimulus is elicited by the first stimulus.

Unconditioned Response

A reflexive, instinctual reaction to an unconditioned stimulus, not learned through previous experience.

Conditioned Response

A learned reaction to a conditioned stimulus that occurs because of previous conditioning, an essential concept in classical conditioning theories.