Question

Pulp cavity of teeth is lined by
A) Odontoblast
B) Chondroblast
C) Osteoblast
D) Amyloblast

Answer 1

Hint: Pulp cavity of teeth is defined as the soft area situated within the tooth’s centre containing the blood vessels, nerve, and connective tissue.

Complete Answer:
Before we find the correct answer, let us know the various types of teeth and their function. There are four types of teeth, namely,
- Incisors - It helps in biting the food.
- Canines- They help in tearing the food apart.
- Premolars- They help in both tearing and crushing the food.
- Molars- They help in grinding, crushing and tearing the food.

Option A: Pulp cavity or the central region of the tooth connects a narrow channel with the root tip and its surrounding tissue. This pulp cavity is filled with pulp connective tissue where both the blood vessels and nerve fibres are embedded within and are finally linked to the odontoblasts thereby producing dentine. Therefore, this is the correct option.
Option B: Chondroblasts give rise to chondrocytes within the growing cartilage matrix. Therefore, this is the correct option.
Option C: Osteoblasts are responsible for the production of new bones called. Therefore, this is the correct option.
Option D: Amyloblast are columnar epithelial cells that are known to secret tooth enamel. Therefore, this is the correct option.

Thus, the correct option is A) odontoblasts.

Note: Odontoblast is defined as a dentine forming cell that is derived from the mesenchyme exhibited by the neural crest origin that lines the pulp tooth cavity.