Tissues Human Biology

Tissues Groups of cells that are specialized in function or structure Epithelial Connective Muscle Nervous

Epithelial Tissue Cover all body surfaces Line all organs Major part of glands Have “free” outside Tightly packed cells Functions: Lining, sensory, secretion, absorption, excretion

Definitions Squamous Cuboidal Columnar Stratified Think “squat” flattened cells Cuboidal Cube shaped Columnar Elongated cells Stratified “Layered”

Epithelial Tissues Types Make a table in your notes like this: (8 X 3) Epithelial Type Location (lining) Function

Simple & Stratified Squamous Tissue Simple Squamous Tissue Stratified Squamous Tissue

Epithelial Type Location (lining) Function Simple Squamous Air sacs of lungs, blood vessels lubrication Stratified Squamous Skin, mouth... protection Simple Columnar Pseudostratified Columnar Stratified Columnar Simple Cuboidal Stratified Cuboidal Transitional

Simple & Stratified & Pseudostratified Columnar Tissue Simple Columnar Tissue Pseudo-Stratified Columnar Tissue

Simple & Stratified Cuboidal Tissue Stratified Columnar Tissue

Epithelial Type Location (lining) Function Simple Squamous Air sacs of lungs, blood vessels lubrication Stratified Squamous Skin, mouth... protection Simple Columnar Stomach, intestines, uterus Protective, SA, secrete mucus Pseudostratified Columnar Trachea, fallopian tubes movement Stratified Columnar Vas deferens, male urethra Support & some movement Simple Cuboidal Stratified Cuboidal Transitional

Simple & Stratified Cuboidal Tissue Simple Cuboidal Tissue Stratified Cuboidal Tissue

Epithelial Type Location (lining) Function Simple Squamous Air sacs of lungs, blood vessels lubrication Stratified Squamous Skin, mouth... Lunrication, protection Simple Columnar Stomach, intestines, uterus Protective, SA, secrete mucus Pseudostratified Columnar Trachea, fallopian tubes movement Stratified Columnar Vas deferens, male urethra Support & some movement Simple Cuboidal Ovaries, kidneys, thyroid glands Secretion & absorption Stratified Cuboidal Mammary glands, sweat glands, Secretion & absorption & protections Transitional

Transitional Tissue Transitional Stretched Unstretched

Epithelial Type Location (lining) Function Simple Squamous Air sacs of lungs, blood vessels lubrication Stratified Squamous Skin, mouth... Lunrication, protection Simple Columnar Stomach, intestines, uterus Protective, SA, secrete mucus Pseudostratified Columnar Trachea, fallopian tubes movement Stratified Columnar Vas deferens, male urethra Support & some movement Simple Cuboidal Ovaries, kidneys, thyroid glands Secretion & absorption Stratified Cuboidal Mammary glands, sweat glands, Secretion & absorption & protections Transitional Bladder Stretch, protection against seepage

Tissue Identification stratified squamous simple squamous simple cuboidal

Tissue Identification Goblet Cell Simple Columnar

Epithelial Tissues Concept Map location type function function location Cuboidal type Squamous Epithelial Tissues Concept Map location type function Columnar Transitional

What are tissues? Groups of cells that are specialized in function or structure What are the four types? Epithelial Connective Muscle Nervous

Connective Tissue Fucntions “connects” substances Protect Act as frame Fill spaces Produce blood Repair tissue damage

Connective Tissue Make a table in your notes like this: (7 X 3) Connective Tissue Type Location (lining) Function

Connective Tissue Types Loose Fibrous Contains elastin Connects skin to organs Provides blood vessels to skin Fills muscle gaps

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch

Connective Tissue Types Adipose Similar to loose fibrous Contains fat storage Insulation, cushions joints, energy reserve Fat droplet

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch Adipose Spaces throughout body Insulation, cushioning

Connective Tissue Types Dense Fibrous Contains elastin Very strong (dense) Slow tissue repair Protection

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch Adipose Spaces throughout body Insulation, cushioning Dense Fibrous Ligaments & Tendons Pulling/pushing, forces

Connective Tissue Types Cartilage Partly rigid, partly flexible Elastic(ears) Hyaline(bone ends) Fibro-(backbone) Hyaline

Connective Tissue Types Elastic Cartilage Fibrocartilage

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch Adipose Spaces throughout body Insulation, cushioning Dense Fibrous Ligaments & Tendons Pulling/pushing, forces Cartilage Ears, nose, bone ends Cushion, support

Connective Tissue Types Bone Supports organs Attachment point Bone cells are called osteocytes. Well nourished

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch Adipose Spaces throughout body Insulation, cushioning Cartilage Ears, nose, bone ends Cushion, support Dense Fibrous Ligaments & Tendons Pulling/pushing, forces Bone Skeleton Support, protection

Connective Tissue Types Blood Red & white blood cells Platelets Plasma Regulates temperature Transportation system

Connective Tissue Type Location (lining) Function Loose Fibrous Under skin, in muscle Nourishment, stretch Adipose Spaces throughout body Insulation, cushioning Cartilage Ears, nose, bone ends Cushion, support Dense Fibrous Ligaments & Tendons Pulling/pushing, forces Bone Skeleton Support, protection Blood Veins, arteries, heart transport

Muscle Tissue Cardiac (involuntary) HEART Smooth (involuntary) ORGANS Skeletal (voluntary) BONES Cardiac Muscle Smooth Muscle Skeletal Muscle

Nerve Tissue Found in the brain, spinal cord, and peripheral nerves Conducts electrochemical impulses Basic cell is called a NEURON

What is tissue regeneration? Tissue can be manmade in a lab Tissues are made from embryoic stem cells Totipotent 500 cell size embryos Research is being done with adult stem cells (taken from bone marrow), but so far is unsuccessful

What can tissues do? Help burn victims (epithelial) Repair muscle Repair organs (heart, liver) Repair nerves/brain/spine Build bone (osteoporosis) Help heal bone ALS, MS, Parkinsons, etc, etc