Histology Flashcards
Apical side
Away from cell (contact with open space)
Basal side
Connected to basement membrane
Epithelium
Mostly cells with little matrix and polar with apical/basal surfaces. Stratified/simple cells. Squamous, cuboidal, columnar.
Squamous
Flat/stretched
Keratanized
Dead tissue - extra layer of protection
Connective tissue proper
Mostly matrix with few cells.
Matrix
mostly ground substance and protein fibers
What are examples of loose connective tissues
Areolar, Adipose, Reticular
What are examples of cartilage supporting tissues
Areolar
Loose organization, lot of space. Space b/w fibroblasts attaches epithelium to muscles
Reticular
Meshy framework, supports organs like the liver. (Immune-lymph nodes, spleen)
Adipose
Thick, white, full cells, with little matrix
Dense CTP
Collagen fibers, Unidirectional tensile strength, Tendons/Ligaments
Irregular CTP
Collagen fibers, multidirectional tensile strength. Dermis, joint capsules, organs, periosteum.
Supportive connective tissue
Cartilage & Bone
Hyaline cartilage
provides support and flexibility, short and dispersed collagen fibers. Lacunae and chondrocytes
Fibrocartilage
Shock absorption, tensile strenght. Contains thick bundles of collage fibers dispersed through its matrix (rope like). Meniscus, Intervertebral discs, along stress lines
Elastic
Flexibility and recoil.. Ex: external ear
Bone (SCT)
Support, protection, strength
Fluid connective tissue
Cells suspended in fluid matrix
Blood
Most abundant: Mostly RBCs with WBCs and platelets
Simple vs Stratified
Simple is arranged in a single layer, while stratified are arranged in multiple layers
Skeletal muscle tissue
Voluntary movement, produces heat, protects organs
Cardiac muscle
Contracts to move blood in the heart
