A patient is stabbed and the knife enters the heart. Which of the following is the inner most layer that the knife passes through before entering muscle fibers?

Impacted and supernumerary teeth are characteristically seen in which of the following?

a. McCune-Albright syndrome b. Cleidocranial dysplasia c. Gardner's syndrome d. Ectodermal dysplasia e. Regional odontodysplasia

Keratinocytes contain a protein-like material called __________.?

Fill in the blank(s) with correct word