Tissues and Collagen Fibres

Question 1

Describe simple squamous (example and function)

Answer 1

Single layer of flat cells, can be found in the descending nephron loop, absorption or diffusion

Question 2

Describe stratified columnar (example and function)

Answer 2

Multiple layers of columnar cells, urethra, function secretion and protection

Question 3

Define the cells of connective tissue

Answer 3

blasts - are immature cells, synthesize and secrete extracellular matrix - divide and differentiate into mature cells

Cytes - are mature cells, responsible for maintenance and storage

Question 4

Define the three fibres of connective tissue

Answer 4

Collagen - provides strength and rigidity
Reticular - provides a net-like framework
Elastic - provides strength and elasticity

Question 5

Describe fibrocartilage (function)

Answer 5

Provides protection and stability for joints - mixture of white fibrous tissue and cartilaginous tissue

Question 6

Describe elastic cartilage (function)

Answer 6

Is two-fold and can change shape in response to tension, compression and bending - provides a strong yet flexible skull

Question 7

Describe blood tissue (function)

Answer 7

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

Question 8

Describe bone tissue (function)

Answer 8

Hard, calcified bone, provides great strength and support for body, site of attachment of muscles and protects organs and stores calcium

Question 9

Describe hyaline cartilage (function)

Answer 9

Clear matrix of fine collagen fibres, clusters of 2-3 cartilage cells, provides a smooth surface at joints minimizes friction and absorbs shock

Question 10

Describe adipose tissue (function)

Answer 10

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

Question 11

Describe dense irregular tissue (function)

Answer 11

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

Question 12

Describe dense regular tissue (function)

Answer 12

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

Question 13

Describe reticular tissue and provide its function

Answer 13

Loos network of fibres and fibroblasts, supporting structural framework

Question 14

Describe loose areolar tissue (example and function)

Answer 14

Loose arrangement of fibres and cells abundant ground substance, it loosely binds epithelial tissue to deeper tissues, supports epithelial tissue

Question 15

Describe Nonkeratinised stratified squamous epithelium (example and function)

Answer 15

Layers of cells but the top layers are all dead cells with no nucleus, found in oesophagus, protection against abrasion

Question 16

Describe transitional epithelium (example and function)

Answer 16

Ranges from cuboidal to stratified cells, urinary bladder, allows for repeated cycles of stretching and protects

Question 17

Describe pseudostratified columnar (example and function)

Answer 17

All cells touch the base membrane but not all reach apical surface, upper respiratory tract, protection and secretion

Question 18

Describe simple columnar (example and function

Answer 18

Single layer of columnar cells, found in the gastrointestinal tract, absorption and secretion

Question 19

Describe stratified cuboidal (example and function)

Answer 19

Multiple layers of cubed shaped cells, mammary glands, function of protection

Question 20

Describe simple cuboidal (example and function)

Answer 20

A single layer of cubed shaped cells, lines the kidneys, function of secretion and absorption

Question 21

Describe stratified squamous (example and function)

Answer 21

Multiple layers of squamous cells, oesophagus, protection against abrasion