Answer:
The correct answer is B. Proximal
Explanation:
Tooth have five surfaces distal, facial, Incisal, Lingual and mesial. Mesial surface is the tooth surface which is present towards the front portion and lingual surface towards back portion of mouth.
So the area where mesial surface of one tooth touches the lingual surface of another tooth is called proximal surface. There is a point where the two teeth that are adjacent touches each other called contact point of proximal surface. It becomes wider due to chewing and grinding with time.
Answer:
b. Tunica Intima, Tunica Media, Tunica Adventitia.
Explanation:
The Tunica Intima is the layer that is in direct contact with the flowing blood. Meaning that it is the one that faces the lumen of the vessel. Following the Tunica Intima, the vessel has the Tunica Media, and finally after this one, the Tunica Adventitia. The latter is the most external layer.
