Epithelium And Connective Tissue Flashcards
Four types of Tissue
Epithelial, Nervous, Muscle, Connective
Where is Epithelium derived?
Either Ectoderm or Endoderm
Epithelium is an avascular tissue that covers which surfaces?
Exterior Body surfaces, Internal closed cavities, Body Tubes that communicate with the exterior, Glands.
What are the functions of Epithelium?
Receptors for special senses, Protection, Transport, Absorption, Secretion.
What are the Epithelial Domains?
Apical, Lateral, and Basal
How is epithelium classified?
By layers and shape. Simple and Stratified
Types of Simple Epithelium
Single Layer
Squamous, Cuboidal, Columnar
Types of Stratified Epithelium
Multiple Layers
Stratified Squamous, Stratified Cuboidal, Stratified Columnar
What are the special types of Epithelium?
Transitional and Pseudostratified
Where would you moat likely to find Simple Squamous Epithelium in the body?
Vascular System, Bowman’s Capsule, Respiratory space in the lung, Body Cavities.
Where in the body are you most likely to find Simple Cuboidal Epithelium?
Small ducts of exocrine glands, Surface of Ovary (Germinal Epithelium), Kidney Tubules, Thyroid Follicles.
Where are in the body are you most likely to find Sinple Columnar Epithelium?
Small intestine and colon, Stomach lining and Gastric glands, Gallbladder.
Where in the body are you most likely to find Pseudostratified Epithelium?
Trachea and Bronchial Tree, Ductus Deferens, Efferent Ductus of Epididymus
Functions of Simple Squamous Epithelium
Exchange, Barrier in CNS, Exchange and Lubrication, Barrier and Exchange
Functions of Simple Cuboidal Epithelium
Absorption, Barrier and Secretion
Functions of Simple Columnar Epithelium
Absorption and Secretion
Functions of Pseudostratified Epithelium
Secretion, Absorption and To work as a Conduit
Where in the body would you find Stratified Squamous Epithelium?
Epidermis, Oral Cavity and Esophagus, Vagina
Where in the body would you find Stratified Cuboidal Epithelium?
Sweat glands, Large ducts of exocrine glands, Anorectal Junction
Where in the body would you find Stratified Columnar Epithelium?
Largest ducts of the Exocrine Glands, Anorectal Junction
Where in the body would you find Transitional Epithelium?
Renal Calyses, Ureters, Bladder, Urethra
Functions of Stratified Squamous Epithelium
Barrier and Protection
Functions of Stratified Cuboidal Epithelium
Barrier, Conduit
Functions of Stratified Columnar Epithelium
Barrier, Conduit
Functions of Transitional Epithelium
Barrier, Distensible Property
Location of Simple Tubular Glands
Large intestine, Glands of the colon.
Location of Simple Coiled Tubular Glands
Sweat Glands of Skin
Location of Simple Branched Tubular Glands
Mucous secreting glands of the Stomach’s Pylorus
Location of Simple Acinar Glands
Para and Peri Urethral glands
Location of Branched Acinar
Mucous Secreting glands of the Cardia in the Stomach
Location of Compound Tubular Glands
Submucosal Glands of Brunner in the Duodenum
Location of Compound Acinar
Excretory portion of the Pancreas
Location of Compound Tubuloacinar glands
Submandibular salivary gland, mammary glands, lacrimal glands
Functions of Connective Tissue
Binding and Support, Protection, Insulation, Transportation
Common tissue of origin for Connective Tissues
Mesoderm
Connective Tissue consists of:
Fixed and Transient Cells
Examples of Fixed Cells
Fibroblasts, Chondroblasts, Osteoblasts, Adipose Cells, Pericytes, Mast Cells, Macrophages
Examples of Transiemt Cells
Plasma Cells and Leukocutes
Types of Embryonic Connective Tissue
Mesenchymal Connective Tissue, Mucoid Connective Tissue.
Characteristics of Mesenchymal Connective Connective
Gel like and found in star shaped mesenchymal cells, Gives rise to other connective tissue, found in the embryo.
Characteristics of Mucoid Connective Tissue
Loose and Amorphous
Jelly like Matrix composed mainly of hyaluronic acid, tyoe 1 and type 3 collagen fibres and fibroblasts.
Found in umbilical cord and subdermal connective tissues of embryos.
Connective Tissue Proper can be groups into 2 classes, those classes being?
Loose Connective Tissue and Dense Connective Tissue.
Types of Looses Connective Tissue
Areolar, Adipose, Reticular
Types of Dense Connective Tissue
Regular, Irregular, Elastic
Areolar Connective Tissue Contains;
Fibroblasts, Macrophages, Mast Cells, and some white blood cells.
Adipose Connective Tissue:
Reserves food stores, insulates against heat loss, supports and protects organs.
Reticular Connective Tissue forms;
A soft internal skeleton/stroma
Reticular Connective Tissue is found:
Lymph Nodes, Bone marrow, liver and spleen
Dense Connective Tissue is found in;
Tendons, ligaments, Aponeuroses.
Dense irregular Connective Tissue is found in:
Dermis, submucosa of the digestive tract and fibrous organ capsules.
Elastic Connective Tissue is found in;
Lungs and large arteries
