Glossary with audio assistance
Browse the glossary using this index
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Dead spacethe air within the respiratory tract that never reaches the alveoli within the lungs and so does not undergo gaseous exchange | |
Deaminationthe breakdown of excess amino acids in the liver, whereby the amine group is removed and converted to ammonia and eventually urea before excretion | |
Deciduous dentitionteeth seen in the young animal soon after birth. These are shed after a few months and are replaced by the permanent teeth. | |
Defecationact of passing feces from the rectum | |
Definition (radiographic)the quality of the radiograph which is affected by density, contrast and sharpness | |
Deglutitionthe act of swallowing | |
Density (radiographic)the degree of blackening of the radiograph | |
Dermal papillastructure situated at the base of the hair follicle containing nerves and blood vessels, which supply nutrients necessary for hair growth | |
Dermislayer of dense connective tissue lying beneath the epidermis | |
Desiccationthe process of losing moisture or “drying out” when exposed to air | |