Tissues Flashcards
Groups of similar cells that carry out a common function
Tissues
Types of tissues…
Epithelial
Connective tissue
Muscle
Nervous tissue
Types of connective tissues
Cartilage, bone, blood, Proper (loose, dense regular and irregular)
What are the shapes of cells in epithelial tissue
Squamous, cuboidal, or columnar
What kind of layers are in epithelial cells
Simple, stratified, pseudostratified
Epithelial tissue classification…
Rest on basement membrane, cilitated, number of layers, and shape of cells
Functions of epithelial tissue
Protection, sensation, absorption, and secretion
Characteristics of epithelial tissue include…
Covers body surfaces In majority of glands Close together cells that form a lining Free and basal surface A vascular High regeneration capacity
What does a stratified surface mean
Stacked, many cells
Single layer of flattened cells, disc nucleus
Simple squamous
In alveoli and capillaries
Simple squamous
Function of simple squamous
Rapid diffusion
Large spherical nucleus, single layer of cubed cells
Simple cubodial
In kidneys and tubules
Simple cubodial
Function of simple cubodial cells
Secretion and absorption
Single layer of tall cells with round nuclei, may contain goblet cells
Simple columnar
In respiratory tract and digestive tract
Respiratory= ciliated simple columnar Digestive= nonciliated simple columnar
Function of simple columnar cilited and non ciliated
Ciliated= secrete mucus Non-ciliated= absorption and secretion
Thick membrane, several cell layers, surface cells flat
Stratified squamous
Surface cells dead and keratin filled basal cells active in mitosis
Stratified squamous keritinized
In skin
Keratinized stratified squamous
In esophaguses and oral cavity
Non kertitanized stratified squamous
Two layers of cube like cells
Stratified cubodial
Function of stratified cubodial and squamous
Protection
In ducts of salivary glands
Stratified cubodial
Many layers, basal cells are cubodial and superficial cells are columnar
Stratified columnar
In sweat glands
Stratified columnar
Function of stratified columnar
Protection and secretion
Single layer of cells with different heights, can contain goblet cells, and cilia
Pseudo stratified columnar
In trachea
Ciliated pseudo stratified columnar
Function of ciliated pseudo stratified columnar
Secretion and movement of mucus
Both stratified squamous and cuboidal, dome shaped, squamous shape surface cells
Transitional
In urinary tract
Transitional
Function of transition epithelium
Dissension and relaxation
Divers and found throughout the body, supports, protects, and binds organs
Connective tissue
Functions of connective tissue
Protection
Support/structural framework
Bind structures together
Storage of minn
Functions of connective tissue
Protection Support/ structural framework Bind structures together Storage of minerals/energy Transportation Immune protection
What are the basic components of connective tissue
Cells
Ground substance
Protein fibers
Three types of protein fibers
Collagen, reticular, elastic
Long, unbranched, made up of protein collagen
Collagen fibers
Traits of collagen fibers
Strong/flexible No stretch Compress Form wavy bundles In tendons and ligaments
Made of elastin, flexible, recoil, in lungs and arteries
Elastic fibers
Contain the same protein as collagen fibers, thinner, mesh like framework, form scaffolding for lymph nodes, spleen, and liver
Reticular fibers
Nonliving material made by cells, solid, gelatinous, or watery.
Made of protein, h20, and carbohydrates
Ground substance
Connective tissue proper characteristics
Fibroblasts, viscous ground substance, fibers are collagen, elastic, and reticular, includes loose and dense CT
Loose vs dense CT
What contains fewer cells and protein fibers?
Loose CT
Loose vs dense CT
Where us adipose tissue found
In loose CT
Protein fibers in dense CT are…
Compact, regular or irregular, high collagen fiber content
What type of CT proper is multidirectional and unidirectional?
Multi= dense irregular Uni= dense regular
Where is dense regular CT found
Ligaments and tendons
Where is dense irregular tissue found
Dermis of skin
Example of loose connective tissue
Hypodermis
Types of muscle tissues
Skeletal, smooth, and cardiac
Consists of special cells that contract in response to stimulation from the nervous system
Muscle tissue
Muscle cells shorten to produce…
Movement
Consists of neurons and glial cells
Nervous tissue
Support neuron functions
Glial cells
Conduct impulses for sensation, motor control, problem solving, and memory formation
Neurons
Where is skeletal muscle located
Skeletal muscles
Where is smooth muscle located
Digestive tract, bladder, and blood vessels
Where is cardiac muscle located?
Walls of heart
What types of muscles are cylindrical
Cardiac and skeletal
Smooth muscle has what shape
Spindle
What muscle tissue type is branched
Cardiac
What muscle tissue type is nonstriated
Smooth muscle
Shape of the nucleus in the muscle tissue types
Smooth/cardiac (disc)= central
Skeletal= peripheral
