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Four types of tissues
- Epithelial
- Connective
- Muscle
- Nerve
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Simple Tissues
Single layer
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Stratified tissue
More then one layer
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Single Squamous
- Flat
- Lines vessels and air spaces
- Thin layer, single layer, visible nucleus, membrane outlines
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Single Cuboidal
- Cube
- Tubles of kidney and ducts of glands.
- Square cells
- Large nucleus
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Single Columnar
- Rectangular
- Nucleus at bottom
- Connected to basment membrane
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Pseudostratified Columndar
- False Stratified but only ONE layer
- Cells different in hight
- Nuceus in two rows
- Located in trachea, ciliated
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Stratified Squamous
- Predominant, rugged, prevent abrasion
- Located in mouth, esophagus
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Keratinized
skin- layered on top
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NonKeratinized
Urinary bladder- top layer cells are round
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Stratified Cuboidal
- Looks like 3 connective rings
- Reproductive and sweat glands
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Stratified Columnar
- Many rows, round cells between rectangular cells on top
- Dark basement membrane on bottom (GI track)
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Trasitional
- Large nucleus, appears coboidal, when stretched appears like squamous.
- Relaxed (contracted)
- Distended (looks flat) (Urinary bladder- while filling up with urine it is becoming enlarged transitioning)
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Two types of Ephitelial tissues
Simple (one layer) and stratified (more then one layer)
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Four types of simple ephitelial tissue
- Squamous
- Cuboidal
- Columnar
- Speudostrarified Cloumnar
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Three types of stratified epthitelial
- Squamous
- Cuboidal
- Clumnar
- Trasitional
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Three types of muscle tissue
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Smooth muscle tissue
- Involuntary- cannot control, ex digestive track
- Spindle shaped, 1 nucleus
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Striated muscle tissue
- Voluntary- can control
- Long, multinecleated, Nuclei at periphery, has cross hands or striations
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Heart (muscle) tissue
- Looks like striated muscle, branched fibers, nuclie in center, intercalated disks (beating transfer- each muscle cell interacts with each other inorder for the heart to beat).
- Involuntary
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Neuron (tissue)
- Transmits electrical signal from sensory receptiors to effectors (muscles or glands) which control their activity.
- Located in brain, spinal cord, and nerves
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Connective Tissue
Produces intercelluarl Material (Matrix) classified by function and Matrix type
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Four types of cells that make connective tissues
- Fibroblast
- Chondroblast
- Osteoblast
- Hematopetic Cell
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Two types of tissues Fibroblast Make
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Areolar
Subcutaneous layer (skin), mucus membrane, filler tissue, disorganized (collagen)
In capillaries, mucous membrane
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Adipose
Fat cells, empty looking, peripheral nucleus, fish net like appearnace.
In abdomen and breast
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Reticular
Supporting fibers of collagen
In spleen and lymph
No uniform structure
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Regular
Collagen fibers arranged symmetricaly, fun in same direction, wavy look. Looks white fibrous.
In tendons and ligaments
Waves
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Irregular
Collagen fibers, runs irregularly, no same direction of waves
In the Dermis
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Elastic
- Brownish blue
- (muscle sheaths)
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The type of tissue Chondroblast cells make
Supporting
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Types of Chondrablast supporting tissues
- Cartilage
- Hyaline Cartilage
- Elastic Cartilage
- Fibrous Cartilage
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Cartilage
Simplest unit- chondroblast
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Hyaline Cartilage
More cells in matrix, nucleus appears to be in 2 layers (articulating surface of bone, between ribs and sternum, nose, trachea)
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Elastic Cartilage
- Crescent shaped, purple fibers, oval lacunae (empty white spaces), cells red, highly flexible.
- Outer ear, epiglottis, larynx
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Fibrous Cartilage
- Semisolid matrix, cells are scattered.
- Intervertebral disc and pubic cone
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Osteoblast make which type of connective tissue
Supporting
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Types of osteoblast supporting tissues
- Bone
- Cancellous Bone
- Compact Bone
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Bone
- Calcified and rigid
- Simplest unit- osteoblast
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Cancellous Bone
Spongy, ends of longitudinal section of long hones
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Compact Bone
Osteocytes in lucunae
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Hematopoetic Cell
Blood Cell
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Three types of blood cells
- Leukocytes
- Erythrocytes
- Platelets
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Leukocytes
White blood cells
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Erythrocytes
- Red Blood cells
- no nucleus or mitochondria
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