Pathology I Flashcards
What does path stand for? -ology?
disease; study of
Definition of pathology?
study of disease pertaining to its causes mechanisms and effects
Two branches of pathology?
Anatomic and clinical
What is anatomic pathology?
Necropsy (gross examination) and Histology/Biopsy (microscopic examination at tissue level)
What is clinical pathology?
Body fluid analysis (blood, urine, CSF), cytology (micro examination at cell level)
What two layers from epithelia?
Ectoderm and endoderm
What forms the mesenchyme?
mesoderm
Epithelia function? Organization?
Protective; arranged into multiple layers, line body/organ surfaces, comprise solid organs (ex. pancreas)
Mesenchyme function? Examples?
To provide support for epithelia; bone, muscle, collagen, blood cells, vessels
Name three examples of epithelial cells?
Hepatocytes, pneumocytes, keratinocytes
Name three examples of mesenchymal cells?
Fibroblasts, osteoblasts, myocytes
Special features of epithelia?
Intercellular junctions= COHESIVE, secretory- hormones, enzymes
Shape epithelia vs. mesenchyme.
Epithelia: Polygonal (ex. cuboidal, columnar, squamous)
Mesenchyme: Round, spindle (ex. stellate, fusiform)
Special feature of mesenchyme?
produce extracellular matrix
Cardia
Heart
