Upon Discovering That She Can No Longer Control an Interesting

question 41

Multiple Choice

Upon discovering that she can no longer control an interesting visual display, a 5-month-old becomes less animated and shows physiological evidence of being stressed. This infant is likely experiencing

• A) anger
• B) sadness
• C) fear
• D) disgust

---

Definitions:

Presynaptic Terminal

The end point of a neuron that conducts electrical signals and releases neurotransmitters to communicate with a neighboring neuron at a synapse.

Nitric Oxide (NO)

A gaseous signaling molecule involved in various physiological processes, including vasodilation and neurotransmission.

Erectile Dysfunction

A condition characterized by the inability to maintain an erection sufficient for satisfactory sexual performance.

Viagra

A pharmaceutical drug used to treat erectile dysfunction by increasing blood flow to the penis.