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Tissues and membranes

Tissue A group of cells with similar structure an function
What are the 4 major groups of tissue Epithelial, connective, muscle and nerve
Epithelial are what? Coverings an linings
Epithelial has no what? Capillaries, gets nutrients from connective tissue below
Squamous Flat
Cuboidal Cube shaped
Columnar Tall and narrow
Simple layers is how many? 1
Stratified is how many layers? Many layers
Simple squamous epithelium 1 layer, smooth, thin and flat
Stratified squamous epithelium Many layers of mostly flat cells
Transitional epithelium Stratified epithelium with varied shapes of layers
Where is transitional epithelium? Urinary bladder, the cells flatten as bladder streched
Unicellular 1 cell
Example of unicellular Goblet cells, found in gi and respiratory tracts
Ciliated epithelium Columnar cells with cilia
Exocrine glands have Ducts
Endocrinr glands are Ductless
Endocrine secretes directly into where? Into blood and interstitial fluid
Endocrine secret what? Hormones
Connective tissue have both _____ & _______ Matrix & cells
Matrix Structure network or solution of living intercellular material
In blood what is the matrix? Plasma
Areolar cells are what? Fibroblast-- produce protein fibers
Areolar fibers are whet 2 kinds Colagen and elastin
Adipose cells are called Adipocyts
Adipostcyts store what? Fat
What are the different types of adipose? Brown and White
Explain the two different adipose Brown is less abundant in adults and white is more abundent and is used to store energy when food intake is less
Brown adipose? Is more abundant in children because they do not have the shivering mechanism that adults have
Adipose is exocrine or endocrine? it is and endocrine because it produces at least one hormone.
Fibrous connective tissue consists of what? Parallel collagen fibers with fewer fibroblasts scattered among them. This parallel is arranged to give greater strength than flexiablity
Where is fibrous connective tissue found? outer walls of arteries, tendons
Fibrous tissue has good or bad blood supply? It has a poor blood supply which results in slow healing
Elastic Connective Tissue is made of primarily what fibers? Elastin
What is one function of the elastic connective tissue? stretching to help with contraction ex; arteries of the heart; it contracts and pumps blood, then they recoil when the heart relaxes
Which connective tissue is important to maintain normal blood pressure? Elastic connective tissue
what is bones prefix? Osteo
Bone cells are called what? Osteocytes
The matrix of the bone is what? calcium salts, and collagen. It makes it strong and not flexible
Bones have good or bad blood supply? Good which allows quick healing process
The matrix of cartilage is what? Carbohydrate and protein
Cartilage contains more ______ which makes it resistant water
Cartilage has a good or bad blood supply? A poor blood supply which makes the healing process slower.
What are cartilage cells called? chondrocytes
Skeletal muscle is ______ and ______ striated and voluntary
Skeletal muscles have single or many nuclei and are cylindrical or tapered ends? many nuclei and cylindrical
Smooth muscles are ______and_____ involuntary and visceral
Smooth muscle is single or many nucle and cylindrical or tapered ends? single and tapered ends
Cardiac muscles serve what purpose? They re branched have one nucleus and have faint striations. They have interlocking folds and permit the electrical impulses of muscle contraction to pass from cell to cell.
The contraction of myocardium create what and keep what circulation? blood pressure and blood circulation
the heart muscle is called what? Myocardium
Nerve tissue consist of what? neurons
what are the two divisions of the nervous system? CNS and PNS
The cell body consists of what? nucleus, axon, dendrites
what is the place where neurons meet where theyre is a small space? synapses
Impulse transmition depends on what chemical? neurotransmitters
Nerve tissue makes up what? brain spinal cord and peripheral nerves
Serous membranes sheets of simple squamous epithelium that line closed body cavities and cover the organs in these cavities
Pleural membranes are the serous membrane of what cavity? Thoracic
Visceral cavity covers what? lungs
Pleural membranes secrete what? serous fluid which prevents friction between the the cavity and the lungs
pericardium lines fibrous pericardium and the visceral peridcardium
mucous membranes line what? body tracts that are open to the enviroment (GI tract, respiratory urinary and reproductive)
Created by: AmandaGuillen