Each of the Following Structures Is Present on Maxillary First

question 19

Multiple Choice

Each of the following structures is present on maxillary first molars EXCEPT one.Which one is the EXCEPTION?

• A) Central pit
• B) Buccal groove
• C) Lingual marginal ridge
• D) Distal pit

---

Definitions:

Benzodiazepines

A class of psychoactive drugs used primarily for treating anxiety, insomnia, and other disorders by enhancing the effect of the neurotransmitter GABA.

Monoamine Oxidase

An enzyme that plays a role in breaking down neurotransmitters such as serotonin and dopamine, influencing mood and emotional states.

Selective Serotonin Reuptake Inhibitors

A class of drugs typically used as antidepressants in the treatment of major depressive disorder, anxiety disorders, and some personality disorders by increasing serotonin levels in the brain.

Tricyclics

A class of antidepressant drugs that are used to treat depression by affecting neurotransmitters in the brain.