Lab 3: Histology Flashcards
What tissue is this? Where is it found? What is a defining feature?
Simple Squamous Epithelial tissue
- Found in blood vessels, lungs, kidneys
- Defined by single layer of flat cells. Nuclei are dark dots.
What tissue is this? Where is it found? What is a defining feature?
Simple Columnar Epithelial Tissue
- Found in digestive tract, allbladder, excretory ducts, and more
- Defined by single layer of tall cells with white goblet cells in the surrounding tissue. Will have a basal membrane as well as nuclei and microvilli
What tissue is this? Where is it found? What is a defining feature?
Simple Cuboidal Epithelial Tissue
- Found in kidney and secretory glands
- Defined by single layer of cube like cells that often form rings and have a basement membrane.
What tissue is this? Where is it found? What is a defining feature?
Pseudostratified Ciliated Columnar Epithelial Tissue
- Found in trachea(ciliated) or sperm carrying ducts (nonciliated)
- Defined by single layer of cells of differing heights attached to the same basal membrane. Nuclei height varies and goblet cells are spread throughout
What tissue is this? Where is it found? What is a defining feature?
Stratified Squamous Epithelial Tissue
- Found in mouth esophagus and vagina (nonkeratanized) or epidermis of skin (keratinized)
- Defined by thick membrane of many layers of cells with layers close to basal layer being cuboidal/columnar and superficial layers being squamous
What tissue is this? Where is it found? What is a defining feature?
Transitional Epithelial Tissue
- Found lining the uterus, bladder, and part of urethra
- Resembles SS and S.cubodial. Cell surfaces are dome shaped
What tissue is this? Where is it found? What is a defining feature?
Areolar Connective Tissue
- Found under epithelia forming lamina propria
- Gel like matrix with fibroblast, elastic fibers, and collagen fibers (also wbc)
What tissue is this? Where is it found? What is a defining feature?
Adipose Connective Tissue
- Found under the skin in hypodermis around kidney, eyeball, abdomen, breast
- Very closely packed with nucleus pushed to the side
What tissue is this? Where is it found? What is a defining feature?
Reticular Connective Tissue
- Found in lymphoid organss
- Network of Reticular fibers in a loose ground substance
What tissue is this? Where is it found? What is a defining feature?
Dense Regular Connective Tissue
- Tendons, ligaments, aponeuroses
- Parallel collagen fibers with a few elastic fibers and fibroblasts
What tissue is this? Where is it found? What is a defining feature?
Dense Irregular Connective Tissue
- Fibrous capsules of organs, joints, dermis of skin, submucosa of GI tract
- Irregular arrangement of collagen with elastic fibers, fibroblasts. Some fat and defense cells also present
What tissue is this? Where is it found? What is a defining feature?
Elastic Connective Tissue
- Walls of large arteries, vertebral column ligaments, walls of bronchial tubes
- Dense regular connective tissue with a lot of elastic fiber
What tissue is this? Where is it found? What is a defining feature?
Elastic Cartilage Connective Tissue
- External ear and epigglottis
- Similar to hyaline but more elastic fibers
What tissue is this? Where is it found? What is a defining feature?
Hyaline Cartilage Connective Tissue
- Form embryonic skeleton, covers ends of bones, forms costal cartilage, nose, trachea
- Amorphus with firm matrix, chondroblasts and chondrocytes in lacunae
What tissue is this? Where is it found? What is a defining feature?
Fibrocartilage Connective Tissue
- Invertebral discs, pubic symphysis, Discs of knee joint
- Matrix similar to hyaline but less firm. Thick fibers dominate
What tissue is this? Where is it found? What is a defining feature?
Bone Connective Tissue
- Bones
- Hard calcified matrix with collagen fibers, osteocytes in lacunae, and vascularized
What tissue is this? Where is it found? What is a defining feature?
** Blood Connective Tissue**
- In blood vessels
- Red and white blood cells in fluid matrix
