Popular in Human Anat & Physiology I
Popular in Biology
This 0 page Class Notes was uploaded by Tamika on Sunday February 21, 2016. The Class Notes belongs to biol 2110k at Georgia Southern University taught by Safer in Fall 2015. Since its upload, it has received 8 views. For similar materials see Human Anat & Physiology I in Biology at Georgia Southern University.
Reviews for Tissues
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 02/21/16
Tissue Description Function Location Epithelia Simple Squamous Single layer of attened Allows passage of Kidney glomeruli air sacs 2 a cells with discshaped central nuclei and sparse cytoplasm the materials by diffusion and filtration in sites where protection is of lungs lining of heart blood vessels and lymphatic Simple Cuboidal quot m simplest not vessels lining of the epithelia important secretes of ventral body cavity lubricating serosae substances in serosae Single layer of Secretion and Kidney tubules cubelike cells with large spherical central nuclei absorption ducts and secretory portions of small glands ovary surface Single layer of tall cells with round to oval nuclei some cells bear cilia layer may contain mucus secreting unicellular glands goblet cells Absorption secretion of mucus enzymes and other substances ciliated type propels mucus or reproductive cells by ciliary action Nonciliated type lines most of the digestive tract stomach to anal canal gallbladder and excretory ducts of some glands ciliated variety lines small bronchi uterine tubes and some regions of the uterus S rati ied S uamous Thick membrane composed of several cell layers basal cells are cuboidal or columnar and metabolically active surface cells are attened squamous in the keratinized type the Protects underlying tissues in areas subjected to abrasion Nonkeratinized type forms the moist linings of the esophagus mouth and vagina keratinized variety forms the epidermis of the skin a dry membrane NONE ATEN ST surface cells are full of keratin and dead basal cells are active in mitosis and produce the cells of the more superficial layers Contains two or more layers of cells Superficial cells cuboidal in shape Mainly protective function Forms walls of ducts of most exocrine glands e g ducts of sweat glands strengthens walls of gland ducts strengthens some sections of male urethra A gland is one or more cells that makes and secretes an aqueous uid Classified by Site of product release endocrine or exocrine Endocrine Glands Ductless glands Secrete hormones that travel through lymph or blood to target organs Numerous examples in body Exocrine Glands More numerous than endocrine glands Secrete products into ducts Secretions released onto body surfaces skin or into body cavities Examples include mucous sweat oil and salivary glands Relative number of cells forming the gland unicellular e g goblet cells in respiratory system or multicellular Stratified Columnar Two or more layers of cells Cells at apical surface columnar in shape Protects and SCCI39CtCS Found in large ducts of salivary glands Found in membranous segment of male urethra Psuedostratified Columnar Single layer of cells of differing heights some not Secretion particularly of mucus propulsion of mucus Nonciliated type in male s spermcarrying ducts and ill slat l at l reaching the free surface nuclei seen at different levels may contain mucus secreting cells and bear cilia by ciliary action ducts of large glands ciliated variety lines the trachea most of the upper respiratory tract Resembles both stratified squamous and stratified cuboidal basal cells cuboidal or columnar surface cells dome shaped or squamouslike depending on degree of organ stretch Stretches readily and permits distension of urinary organ by contained urine Lines the ureters urinary bladder and part of the urethra Adipose 9quot u I 3 c 39 1 9 39 e l w Matrix as in areolar but very sparse closely packed adipocytes or fat cells have nucleus pushed to the side by large fat droplet Provides reserve food fuel insulates against heat loss supports and protects organs Under skin in the hypodermis around kidneys and eyeballs within abdomen in breasts Gellike matrix with all three fiber types cells fibroblasts macrophages mast cells and some white blood cells Wraps and cushions organs its macrophages phagocytize bacteria plays important role in in ammation holds and conveys tissue uid Widely distributed under epithelia of body e g forms lamina propria of mucous membranes packages organs surrounds capillaries Network of reticular fibers in a typical loose ground substance reticular cells lie on the network Fibers form a soft internal skeleton stroma that supports other cell types including white blood cells mast cells and macrophages Lymphoid organs lymph nodes bone marrow and spleen Primarily parallel collagen fibers a few elastic fibers major cell type is the fibroblast Attaches muscles to bones or to muscles attaches bones to bones withstands great tensile stress when pulling force is applied in one direction Tendons most ligaments aponeuroses Primarily Able to withstand Fibrous capsules of irregularly arranged collagen fibers some elastic fibers major cell type is the fibroblast tension exerted in many directions provides structural strength organs and of joints dermis of the skin submucosa of digestive tract Elastic Dense regular connective tissue containing a high proportion of elastic fibers Allows recoil of tissue following stretching maintains pulsatile ow of blood through arteries aids passive recoil of lungs following inspiration Walls of large arteries within certain ligaments associated with the vertebral column within the walls of the bronchial tubes Amorphous but firm matrix collagen fibers form an imperceptible network chondroblasts produce the matrix and when mature chondrocytes lie in lacunae Supports and reinforces has resilient cushioning properties resists compressive stress Forms most of the embryonic skeleton covers the ends of long bones in joint cavities forms costal cartilages of the ribs cartilages of the nose trachea and larynx Similar to hyaline cartilage but more elastic fibers in matrix Maintains the shape of a structure while allowing great exibility Supports the external ear pinna epiglottis Matrix similar to but less firm than that in hyaline Tensile strength with the ability to absorb compressive shock Intervertebral discs pubic symphysis discs of knee fibers osteocytes lie in lacunae Very well vascularized muscles to act on stores calcium and other minerals and fat marrow inside bones is the site for blood cell formation hematopoiesis cartilage thick collagen joint fibers predominate Osseous Bone Hard calcified Bone supports and Bones Compact matrix containing many protects by enclosing quot collagen provides levers for the Red and white blood cells in a uid matrix plasma Transport of respiratory gases nutrients wastes and other substances Contained within blood vessels Neurons are branching cells cell processes that may be quite long extend from the nucleuscontaining cell body also contributing to nervous tissue are nonirritable supporting cells Transmit electrical signals from sensory receptors and to effectors muscles and glands which control their activity Brain spinal cord and nerves not illustrated Muscle Cardiac Branching As it contracts it The walls of the striated generally propels blood into the heart uninucleate circulation involuntary cells that interdigitate at control specialized junctions intercalated discs Spindleshaped Propels substances Mostly in the walls cells with central nuclei no striations cells arranged closely to form sheets or objects foodstuffs urine a baby along internal passage ways involuntary control of hollow organs Long cylindrical multinucleate cells obvious striations Voluntary movement locomotion manipulation of the environment facial eXpression voluntary control In skeletal muscles attached to bones or occasionally to skin
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'