Tissues and Collagen Fibres Flashcards
Describe simple squamous (example and function)
Single layer of flat cells, can be found in the descending nephron loop, absorption or diffusion
Describe stratified columnar (example and function)
Multiple layers of columnar cells, urethra, function secretion and protection
Define the cells of connective tissue
blasts - are immature cells, synthesize and secrete extracellular matrix - divide and differentiate into mature cells
Cytes - are mature cells, responsible for maintenance and storage
Define the three fibres of connective tissue
Collagen - provides strength and rigidity
Reticular - provides a net-like framework
Elastic - provides strength and elasticity
Describe fibrocartilage (function)
Provides protection and stability for joints - mixture of white fibrous tissue and cartilaginous tissue
Describe elastic cartilage (function)
Is two-fold and can change shape in response to tension, compression and bending - provides a strong yet flexible skull
Describe blood tissue (function)
Mostly red blood cells, fewer white and platelets and plasma, red blood cells transport gases, white blood cells protect body from infection, platelets clot blood and plasma transports nutrients and waste through the body
Describe bone tissue (function)
Hard, calcified bone, provides great strength and support for body, site of attachment of muscles and protects organs and stores calcium
Describe hyaline cartilage (function)
Clear matrix of fine collagen fibres, clusters of 2-3 cartilage cells, provides a smooth surface at joints minimizes friction and absorbs shock
Describe adipose tissue (function)
Consists of clusters of large fat cells, nucleus is found at the edge of the cell, energy storage, reduces heat loss and protective cushioning for organs
Describe dense irregular tissue (function)
Bundles of densely packed collagen fibres running in different directions, fibroblast cells found between bundles little opening space, provides strength and resists stretching in all direction, (found beneath skin, capsules around organs and outer covering of body tubes oesophogus
Describe dense regular tissue (function)
Bundles of densely packed collagen fibres, run in the same direction, fibroblasts cells are located between bundles (very little open space (matrix) present, can withstand strong pulling forces, tightly binds bone to bone and muscle to bone
Describe reticular tissue and provide its function
Loos network of fibres and fibroblasts, supporting structural framework
Describe loose areolar tissue (example and function)
Loose arrangement of fibres and cells abundant ground substance, it loosely binds epithelial tissue to deeper tissues, supports epithelial tissue
Describe Nonkeratinised stratified squamous epithelium (example and function)
Layers of cells but the top layers are all dead cells with no nucleus, found in oesophagus, protection against abrasion
Describe transitional epithelium (example and function)
Ranges from cuboidal to stratified cells, urinary bladder, allows for repeated cycles of stretching and protects
Describe pseudostratified columnar (example and function)
All cells touch the base membrane but not all reach apical surface, upper respiratory tract, protection and secretion
Describe simple columnar (example and function
Single layer of columnar cells, found in the gastrointestinal tract, absorption and secretion
Describe stratified cuboidal (example and function)
Multiple layers of cubed shaped cells, mammary glands, function of protection
Describe simple cuboidal (example and function)
A single layer of cubed shaped cells, lines the kidneys, function of secretion and absorption
Describe stratified squamous (example and function)
Multiple layers of squamous cells, oesophagus, protection against abrasion
