The root of a tooth is anchored by the

A) pulp.
B) periodontal ligament.
C) the root canal.
D) enamel.
E) dentin.


B) periodontal ligament.

Anatomy & Physiology

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Which of the following is a primary germ layer in the very early embryo?

a. Ectoderm b. Mesoderm c. Endoderm d. Epidermis

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Which embryonic structure gives rise to the trachea?

A. The conotruncus B. The bulbus cordis C. The pulmonary groove D. The first pharyngeal arch E. The lung buds

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Which type of taste has the lowest threshold?

A. Sour B. Salty C. Umami D. Sweet E. Bitter

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What is NOT a function of the reticular formation?

A) modulation of pain transmission B) sleep C) memory D) maintaining wakefulness

Anatomy & Physiology