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.
C. Loss of function mutation with haploinsufficiency
Answer: c. bleeding, attachment loss, sulcus depth of >4 mm
Explanation:
Periodontitis is a serious infection of gum. It causes the damage of soft tissues and also destroy the bones that support the teeth.
This disease can cause loosening of teeth. But it is commonly preventable. It is because of poor hygiene of mouth. It results in bleeding of gums. It also results in decrease in depth of sulcus to 4mm.
Answer:
b. fluoroapatite
Explanation:
Fluorapatite -
It is a mineral of phosphorous , with the formula of Ca₅(PO₄)₃F ( calcium fluorophosphate ) .
It is a crystalline hard solid , and the pure mineral does not have any color .
Along with hydroxylapatite , it can be the component of enamel of the tooth .
It is found in shark's and other fishes teeth and present in fluoride exposed human teeth .
Due to the presence of fluorapatite , it does not allow the tooth to decay .