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Dense Connective. Can be regular, irregular, or elastic Regular: Primarily parallel collagen fibers, few elastic fibers, major cell type is fibroblast

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dense connective
Dense Connective
  • Can be regular, irregular, or elastic
  • Regular:
    • Primarily parallel collagen fibers, few elastic fibers, major cell type is fibroblast
    • Attaches muscles to bones or to other muscles; attaches bones to bones; withstands great tensile stress when pulling force is applied in one direction
    • Located in tendons, ligaments, aponeuroses
  • Irregular
    • Primarily irregularly arranges collagen fibers, some elastic but mostly fibroblasts
    • Withstands tension exerted in many directions; provides structural strength
    • Located in fibrous capsules of organs and of joints, dermis of skin, submucosa of digestive tract
  • Dense Irregular
  • Dense Regular
dense elastic connective
(Dense) Elastic Connective
  • Contains a high proportion of elastic fibers
  • Allows tissue to recoil after stretching; maintains pulsatile flow of blood through arteries; aids passive recoil of lungs following inspiration
  • Located in walls of large arteries, withing ligaments associated w/ vertebral column, and within the walls of the bronchial tubes
cartilage
Cartilage
  • Can be hyaline, elastic, or fibrocartilage
  • Hyaline:
    • Amorphous but firm matrix; collagen fibers form an imperceptible network; chondoblasts produce the matrix and when mature chondrocytes lie in lacunae
    • Supports and reinforces; resilient cushion; resists compressive stress
    • Located in embryonic skeleton, covers ends of long bones in joints, forms costal cartilages in ribs, cartilage in nose, trachea and larynx
  • Elastic:
    • Like hyaline but with more elastic fibers in matrix
    • Maintains the shape of a structure while allowing great flexibility
    • Supports external ear and epiglottis
  • Fibrocartilage:
    • Matrix similar to (less firm) hyaline; many thick collagen fibers predominate
    • Tensile strength allows it to absorb compressive shock
    • Located in intervertebral disks, pubic symphysis, knee joints
  • Hyaline
  • Elastic
  • Fibrocartilage
bone osseous cells
Bone (Osseous) Cells
  • Can be compact or spongy bone
  • Hard, calcifies matrix containing many collagen fibers; osteocytes lie in lacunae; well-vascularized
  • Supports and protects; provides levers for the muscles to act on; stores calcium, minerals, fat; marrow inside bones is site for blood cell formation (hematopoiesis)
  • Located in bones
blood rbcs and wbcs
Blood (RBCs and WBCs)
  • Red and white blood cells in a fluid matrix of plasma
  • Transports respiratory gases, nutrients, wastes, and other substances
  • Contained in blood vessels
neural nervous tissue
Neural/Nervous Tissue
  • Nervous systems are composed of nerve cells/neurons and glia (support cells).
  • Neurons are organized into information-processing neural networks
  • The nervous system regulates and controls body functions; they respond to stimuli and transmit electrical impulses over substantial distances within the body.
neuron
Neuron
  • Neurons are branching cells; cell processes may be quite long extend from the nucleus-containing body
  • Neurons transmit electrical signals from sensory receptors and to effectors which control their activity; support cells support and protect neurons
  • Located in brain, spinal cord, and nerves
brain tissue
Brain Tissue
  • Spinal Cord
  • Brain
reproductive tissue
Reproductive Tissue
  • Organs secrete a variety of hormones, especially active during puberty, which play a vital roles in development and function of the sex organsand other organs in the body.
  • Purpose is to produce fertile offspring.
spermatogonium
Spermatogonium
  • Stem cell for sperm
  • Spermatocytes divide by mitosis until puberty, then all daughter cells become spermatogonia.
developing follicle
Developing Follicle
  • The maturation of the follicle is part of the ovarian cycle
  • Process begins in ovaries and ends in ovulation
web sites and texts
Web Sites and Texts
  • http://www.stegen.k12.mo.us/tchrpges/sghs/ksulkowski../images/simplecub.jpg
  • http://www.histology.leeds.ac.uk/tissue_types/connective/connective_tissue_types.php
  • http://www.meddean.luc.edu/lumen/meded/Histo/frames/h_frame7.html
  • http://www.lab.anhb.uwa.edu.au/mb140/corepages/connective/connect.htm#reticular
  • http://biology.clc.uc.edu/fankhauser/Labs/Anatomy_%26_Physiology/A%26P201/Connective_Tissues/Cartilage.htm
  • http://www.siumed.edu/~dking2/intro/bldcells.htm
  • http://www.lab.anhb.uwa.edu.au/mb140/corepages/nervous/nervous.htm#labcord
  • http://www.webpathology.com/image.asp?case=27&n=2
  • My AP Bio textbook: Principles of Life
  • My Anatomy/Physiology textbook: Human Anatomy & Physiology
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