In the Universal Numbering System,the Maxillary Permanent Premolars Are

question 23

Multiple Choice

In the Universal Numbering System,the maxillary permanent premolars are:

• A)#4, #5, #12, and #13.
• B)#14, #15, #24, and #25.
• C)#20, #21, #28, and #29.
• D)#34, #35, #44, and #45.

---

Definitions:

Inferior Colliculus

One of two rounded eminences of the midbrain; involved with hearing.

Cochlear Nucleus

Neurons from the cochlear nerve synapse within the dorsal or ventral cochlear nucleus in the superior medulla oblongata.

Tectorial Membrane

A structure in the inner ear that plays a key role in the process of hearing by interacting with hair cells on the organ of Corti.

Scala Tympani

Division of the spiral canal of the cochlea lying below the spiral lamina and basilar membrane.