Connective Tissue Flashcards
What is connective tissue?
Most abundant tissue type, bind, support, protect, framework, fill, store fat, produce blood cells, repair tissue damage
What are the proper connective tissue types?
Loose connective tissue, adipose tissue, reticular connective tissue, dense connective tissue, elastic connective tissue.
What are the specialized connective tissue types?
Cartilage, bone, blood
What major cell types are in connective tissue?
Fibroblasts, Macrophages, Mast cells.
What are fibroblasts?
Fixed cell, most common, large star-shaped, fiber producing
What are macrophages?
Wandering cell, phagocytic, important in injury/infection
What are mast cells?
Wandering cell, release histamine and heparin
What fibers types are in connective tissue?
collagenous fibers, elastic fibers, reticular fibers.
What are collagenous fibers?
Thick collagen fibers with high tensile strength that hold structures together in ligaments and tendons
What are elastic fibers?`
Bundles of microfibers embedded in elastin, branching fibers, vocal cords and air passages.
What are reticular fibers?
thin collagenous fibers, highly branches, supportive networks, organ walls
What is loose connective tissue?
mainly fibroblasts, fluid to gel matrix, collagenous and elastic fibers, attaches structures and is beneath epithelia.
What is adipose tissue?
made of adipocytes, cushions, insulates, stores fat, skin eyeballs, and kidges/heart.
What is dense connective tissue?
Packed collagenous fibers, elastic, few fibroblasts, bind together body- tendons, ligaments, dermis, poor blood supply.
What is the difference between regular and irregular dense connective tissue?
Regular dense connective tissue only supports well in one direction.
What is cartilage?
Rigid matrix, chondrocytes in lacunae, poor blood supply
What are chondrocytes?
cells found in cartilage, maintain the matrix
What is lacunae?
unfilled space, cavity or depression
What are the three types of cartilage?
Hyaline, Elastic, Fibrocartilage
What is hyaline cartilage?
Most abundant, ends of bones, nose and respiratory tract, embryonic skeleton
What is elastic cartilage?
flexible, external ear, larynx
What is fibrocartilage?
very tough, shock absorber, discs, knee and pelvic girdle
What does bone (osseous tissue) do?
Solid matrix, supports and protects, forms blood cells, attachment for muscles, skeleton osteocytes in lacunae
What does blood do?
fluid matrix(plasma), red and white blood cells, platelets, transportation, defense and clotting, throughout body, heart
What are the three types of muscles?
Skeletal, smooth, cardiac
What is skeletal muscle?
attached to bone, striated, voluntary
What is smooth muscle?
walls of organs, skin, and blood vessels, involuntary, non-striated, uninucleated
What is cardiac muscle?
heart wall, involuntary, striated, connected to eachother by intercalated discs, uninucleated
What is nervous tissue?
brain, spinal cord, PNS, functional cells are neurons, neuroglia supports and binds nervous components, sensory reception, conduction of nerve impulses
