ENH 220 Midterm: Pathology Notes
16 Jan 2017
School
Department
Course
Professor
Document Summary
Organelle: a small structure present in the cytoplasm of the cell, such as the mitochondrion. Dna: the nuclear acid in the chromosomes of the nuclei of cells that carries genetic info. Rna: a type of nucleic acid contained in the nuclei of cells. A component of messenger, transfer, and ribosomal rna. Tissues: a group of similar cells joined together to perform a speci c function. Strati es squamous squished together: mesothelium: layer of squamous epithelium lining pleural (sac of lung), pericardial, and peritoneal cavities, connective and supporting tissues. Types: collagen bres (deposition) connect and support tissues, long and exible, doesn"t stretch, elastic fibres: responsible for distensibility of arteries can expand and extract. Contains elastin, not strong but stretches ex blood vessel: reticulin bers: form supporting framework of organs, thin and delicate. Ex. adipose tissue, bone, cartilage: ligaments, tendons, bronchi walls, trachea, muscle tissue. Types: smooth muscle: located in walls of hollow internal organs, functions automatically.
