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Basic Tissues - Coggle Diagram
Basic Tissues
4 Categories
Connective tissue
Main function is t bind/ connect and fill up gaps
Present everywhere in body and in different forms
3 classes of components
Fiber
Reticular, Elastic, Collagen
Surrounds cell
Provides strength to CT
Ground substance
Macromolecules, multiadhesive glycoproteins
Cells
Fibroblast, macrophage, mast, plasma, lymphocyte, WBC,adipose
Responsible for producing extracellular substances
Increasing density of CT
Blood, Lymph, haemopoietic tissue, loose ct (Areolar, adipose, reticular), dense ct (Tendons, ligaments, deep fascia), cartilage, bone
Loose CT
Loose arrangement of CT fiber, a lot of space
Also accompanied by areolar tissue or fat tissue, where there is loose CT, you will see fat deposits, right below skin
Widely distributed throughout animal body
AKA superficial fascia, subcutis, hypodermis
Infection spreads quickly here!!
Dense CT
Organized fiber arrangement
Tougher and stronger
Two structures connected to one another are linked stronger than loose CT
Beneath superficial fascia
Surrounds and breaks muscles into groups, may serve as attachement for some muscles
Relatively impermeable
Harder for infections to spread though
Whiter than Loose CT
Some parts of body are more exposed to external environment/ more prone to damage have thicker that Deep Fascia
Retinaculum
Modified deep fascia, depends on the need
Thicker and more organized than deep fascia
Holds tendons in place
Annular ligament
Cartilage
Specialized connective tissue
RIGID AND FLEXIBLE
Able to bear weight
Ear pinna, nose
No blood supply here
Longer healing time
Bone
Most rigid from of CT
It is dynamic tissue
Renewed and remodeled throughout life
Bone growth, bone breaks and heals, etc
Most strength with least weight due to structure
Not completely solid on inside
Functions
Movement of one part of body to another
Lever system for energy conservation and reduce muscular fatigue
Protection of fragile body parts
Mineral homeostasis, reserve for calcium and phosphate
Forms skeleton that provides support to animal
Muscle
Epithelium
Present along the surface
A layer of cells that is supported by basement membrane, one side is exposed to outside
Epithelial organs- liver, pancrease kindey, similar structure all over
No intercellular space, tightly packed cells
Endo vs mesothelium
Both are epithelium
Endothelium
Inner lining of BV
Mesothelium
Inner lining of body cavity, pleural cavity
Has watery fluid
Remember types of cells
Nervous tissue
Tissues, Organs, and systems
Cells, tissue, organ, organs system, body
Protoplasm exists in form of cells, mixed with nonprotoplasmic intercellular substances