Tissues Flashcards
what are the 4 main tissue types?
1: Epithelial tissue
2: Connective tissue
3: Muscle tissue
4: Nervous tissue
This tissue forms sheets that cover or line the body
Epithelial tissue
This tissue provides structural and functional support
Connective tissue
This tissue contracts to produce movement or maintain stability
muscle tissue
This tissue senses, conducts and processes information
Nervous tissue
what is ECM (extracellular matrix)
internal fluid environment of the body, mostly water but often contains fibers and other substances that gives it jelly like consistency
Example of ECM (extracellular matrix) proteins are?
collagen, elastin, polysaccharides and proteoglycans
This protein forms twisted, ropelike fibers that provide flexible strength to tissue
Collagen
This protein is rubbery and provides elastic stretch and recoil in tissues
Elastin
This protein helps link cells, absorb shock, regulate function and lubricate
polysaccharides and proteoglycans
flat and scalelike
squamous
cube shaped
Cuboidal
Taller than they are wide
Columnar
varying shapes that can stretch
Transitional
This tissue
1: covers body and lines body cavities, forms tubes and ducts
2: strongly connected cells are packed closely together
Epithelial Tissue
Single layer of scalelike cells adapted for transport, as during absorption
Squamous epethelium
Several layers of closely packed cells, specializing in surface of skin
Stratified squamous epithilium
Single layer of cube like cells, often specialized for secretory activity , may secrete into ducts, blood, and on body surface
Simple cuboidal epithelium
Two or more layers of cube like cells , sometimes found in sweat glands
Stratified cuboidal epithelium
Tall column like cells arranged ina single layer with nucleinear basement membrane, contain mucus producing goblet cells, specialized for absorption
Simple columnar epithelium
Very rare in body, few cells in layer, function as extra protection at body surface
Startified columnar epithelium
Single layer of variably shaped cells, some distorted columnar, scattered nuclei, contain goblet cells, each cell touches basement membrane, function in moving mucus trapped particles
pseudostratified epithelium
Stratified with upto 10 layers of variable, roughly cuboidal cells that distort to squamous shape when stretched, function for stretch as in urinary bladder lining
Transitional epithelium
what type of tissue is this
-most abundant and widely distributed tissue in body
Connective tissue
What are 5 types of connective tissue
-Fibrous tissue
-Bone tissue
-Cartilage tissue
-Blood tissue
-Hematopoietic tissue
What kind of tissue:
loose aleolar, adipose (fat) reticular and dense
Fibrous tissue
compact and cancellous (spongy) tissue
Bone tissue
Hyaline, fibrocartilage and elastic tissue
Cartilage tissue
What are 3 types of Fibrous connective tissue
1: Loose fibrous connective tissue
2: Adipose (fat tissue)
3: Reticular tissue
Fibrous glue (fascia) that holds organs together and facilitates communication among organs, collagenous and elastic fibers
Loose fibrous connective tissue (Areolar)
white fat stores lipids (triglycerides), brown fat produces heat, both types regulate metabolism
Adipocyte is cell type
Adipose (fat) tissue
Delicate net of supportive collagen fibers, as in bone marrow, spleen and lymph nodes
Reticular tissue
bundles of strong collagen fibers, densely packed
Dense fibrous tissue
Parallel collagen bundles, eg is Tendon
Regular dense fibrous tissue
Chaotic, swirling collagen bundles, eg: deep layer of skin
Irregular dense fibrous tissue
Matrix is collagen bundles is encrusted with calcium mineral crystals
Osteocyte is cell type
Bone tissue
3 Types of bone tissue
1: Compact bone
2: cancellous bone
3:Bone marrow
Made of cylindrical osteons, forms outer wall of bones
Compact bone
Made up of thin crisscrossing beams of matrix, also called spongy bone
Cancellous bone
Matrix has consistency of gristlelike gel
Chondrocyte is cell type
Cartilage tissue
moderate amount of collagen in matrix, forms a flexible gel
Hyaline cartilage
Matrix is very dense with collagen, forms very tough hard gel
Fibrocartilage
Matrix has some collagen with elastin, forms a soft elastic gel
Elastic cartilage
matrix is fluid plasma, functions are transportation and protection, contains red blood cells, white blood cells and platelets
Blood tissue
Blood forming tissue with a liquid matrix
Hematopoietic tissue
Contracts to provide movement or stability, produces body heat
Muscle tissue
attaches to bones, also called striated voluntary, control is voluntary, striations apparent when viewed under a microscope
skeletal muscle tissue
Also called striated involuntary, composes heart wall, ordinarily cannot voluntarily control contractions
Cardiac muscle tissue
Also called non striated (visceral) or involuntary, no cross striation, found in blood vessels and other tube shaped organs
smooth muscle tissue
Rapid communication between body structures and control of body functions
Nervous tissue
impulse conducting cells
Neurons
2 types of processes of all neurons
axon and dendrite
carries nerve impulse away from the cell body
Axion
recieve signals from other neurons
Dendrites
Supportive and connecting cells
Glia (neuroglia)
