The First Deciduous Teeth,the Mandibular Central Incisors,erupt at Approximately 6

question 16

Multiple Choice

The first deciduous teeth,the mandibular central incisors,erupt at approximately 6.5 to 7 months.The first permanent teeth,the maxillary premolars,erupt at approximately 6 years of age.

• A) Both statements are true.
• B) The first statement is true;the second statement is false.
• C) The first statement is false;the second statement is true.
• D) Both statements are false

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Definitions:

Trochlear

Pertaining to the fourth cranial nerve, responsible for eye movement, particularly rotation of the eyeball.

Subarachnoid Space

The area between the arachnoid membrane and pia mater around the brain and spinal cord, filled with cerebrospinal fluid.

Meninges

The three layers of protective tissue, the dura mater, arachnoid mater, and pia mater, that enclose the brain and spinal cord.

Arachnoid Mater

A delicate membrane, one of the three layers of the meninges, located between the dura mater and the pia mater, surrounding the brain and spinal cord.