1 Connective tissue/Types of connective tissue

Con tiss. Collagen

glue- like protein( gelatin is derived from collagenous tissues)provides both structure and flexibility to a tissue

compressive strength(resists crushing)

Con tiss. Reticular

netlike fibers are very small collagenous fibers arranged in a loose irregular configuration to provide supprt to a tissue

Con tiss.vElastiin

elastic material allowing a tissue both stretch and to recoil(tensile strength)

Connective tissue??

characteristics- considerable intercellular material(matrix) binding cells

supporting and binds structures together

Tendons

attach muscles to other things ( typically bone, some cartilage or other muscles)

composed of dense connective tissue and broad sheets of tendinous material

Aponeuroses- may cover a muscle or connect muscles with structures they move

Ligaments

typically elastic cords that joins bones and cartilages.

ligament term applied to membranes refers to epithelial tissue*

Fasciae/ Fascia

dense fibrous tissue that can’t be identified as tendon, aponeuroses, or ligament

-more irregularly arranged fibers - typically encases organs and muscles

Subcutaneous fascia

covers the body beneath epidermis , where fat accumulates

Types of cont tiss Loose cont tissue

soft, viscous matrix material

• binds parts together while allowing some movement between them

Types of cont tiss Areolar tissue

loose, elastic, mesh-like connective tissue without internal organization

-forms a bed for skin and mucous membranes, supports organs and fills interstitial spaces(spaces between organs)

Types of cont tiss Adipose tissue (fat tissue)

high concentration of fat cells

-found just beneath the skin and between muscles and organs

Types of cont tiss Vascular tissues(fluid tissues)

specialized connective tissue that exists in fluid form

two types

Blood blood cells (corpuscles) and platelets suspended in a matrix of plasma (fluid)

Lymphoid tissue tissue containing lymph cells (lymphocytes). Found in lymph nodes.adenoides and tonsils

Types of cont tiss Dense connective tissues

more closely packed matrix material, and a higher proportion of fibers,especially collagen

Types of cont tiss White fibrous tissue

tightly packed collagen fibers arranges parallel to eachother

-compressive strength

often found in ligaments joining bone and cartilage and as a covering to bone (periosteum) or muscle (fascia)

Types of cont tiss Yellow elastic tissue

contains higher proportions of elastic fibers then whit fib tissues so more flexible

-tensile strength

occurs in regions where recoil properties are needed such as respiratory system

Types of cont tiss Cartilage

provides strength and flexibility

-matrix contains regions of lower density (lacunae) in which cartilage cells ( chondrocytes) and collagen fibers are suspended

• perichondrium- tough fibrous membrane covering the non- articulating surfaces of cartilage

Types of cartilage Hyaline cartilage

smooth,glassy cartilage with high proportion of cartilage

-found at joints between bones and respiratory tract and may go calcification (hardening) with age

Types of cartilage Yellow (elastic) cartilage

more rubbery than hyaline bc it contains elastin fibers in addition to collagen

-found inexternal ear, epiglottis and some small laryngeal cartilages

Types of cartilage Fibrocartilage

densely packed collagen fibers and provides cushion at some joints especially intervertebral disk

Bone

%30 collagen and matrix is calcifies

-resists stretching and compression and covered in fibrous membrane the periosteum extends along the bone proper and tightly bound to the bone at tendinous junctions

types of bone Compact/dense

bone tissue forms the cortex(outer shell) of most bones.

contains microscopic channels( the Haversian canals) permits passage of blood and nerves

• matrix and tissue fibers form layers (lamellae) within which the bone cells ( osteocytes and osteoblasts) are found in lacunae

types of bone Spongy or Cancellous

appears porous to naked eye and contains bone marrow which produces blood cells and plasma

osteoblasts

building and adding bone mass

osteocyte

bone cells

osteoclasts

consume

Musc tissue Striated (skeletal, somatic)

long cross striped fibers, attaches to the skeletal system and can respond to voluntary processes

Musc tissue Smooth(visceral)

sheet like, spindle shaped cells without lateral striations

-tissue associated with organs(not heart)

• responds to autonomic(involuntary) stimulation and shows slow, steady contractions, found in stomach, intestines, blood,vessels and bronchial tubes

Cardiac muscle( myocardium)

heart, combo of smooth and striated muscle under autonomic control

Muscular tissue

Long slender cells that have ability to contracts in response to electrochemical stimulation stimulation(from nerves)