STRUCTURE OF THE KNEE ARTICULAR CARTILAGE AFTER THE FEMUR AND TIBIA EXTRA-ARTICULAR INJURY.

Objective: The aim: To study the microscopic, ultramicroscopic, and histomorphometric features of the knee articular cartilage in rats with an extra-articular injury of the femur and tibia.

Patients And Methods: Materials and methods: 60 white laboratory rats divided into three groups (I - control; II - animals with traumatic femur injury; III - animals with traumatic tibia injury) were used for the study. The light microscopy was performed by Olympus BH-2 microscope (Japan), transmission electron microscopy - by JEM-1230 microscope (Japan).

The histological and electron microscopic study of the parotid salivary gland in dehydrated rats of different ages.

Objective: Introduction: Water-salt metabolism disorders is one of the main factor of salivary gland pathology development. The aim: To study the morphological structure of the parotid salivary gland of young, mature and old rats at micro- and ultrastructural levels under water deprivation.

Patients And Methods: Materials and methods: The experiment was carried out on thirty six laboratory male rats of different ages (young, mature and old).