Tissues

Question 1

Structure function and locations of squamous epithelial tissue

Answer 1

Structure - flattened cells on the basement membrane
- function lining tissue covers the surface of organs cavities and tubes
- thin layer of cells for gas exchange

• locations walls of alveoli, blood vessels, lining of renal capsule of the nephron

Question 2

Structure function and locations of cuboidal epithelial tissue

Answer 2

Structure - cells have a cube shape tissue is one cell thick
Function - secretion and reabsorption
Locations - kidney tubules , glandular ducts like salivary glands

Question 3

Structure functions and locations of columnar epithelial tissue

Answer 3

Structure - cells are elongated columnar some have microvilli
Function - the microvilli increase surface area for absorption
Locations - small intestine

Question 4

Structure functions and locations of ciliates columnar epithelial tissue

Answer 4

Structure - cells are elongated column shaped haveing cilia
Function - cilia waft to move dust and dirt trapped in mucus out of air passages
Locations - trachea bronchi and fallopian tubes

Question 5

Structure function and location of glandular tissue

Answer 5

Structure - secretory epithelial cells organising themselves into gland shapes
Function - secrete enzymes hormones saliva mucus etc
Locations - salivary glands , pancreas ,gastric glands in stomach mucosa

Question 6

Structure functions and locations of skeletal muscle

Answer 6

Structure - attached to bones ,muscle cells are joined together to form fibres , striations caused by overlapping protein molecules in the cells, voluntary
Function - supports soft tissues , maintains posture and body position , skeletal movement
Locations - attached to bone by tendons , generates locomotion

Question 7

Structure function and locations of smooth muscle

Answer 7

Structure - unstriated , individual spindle shaped cells which can shorten in length involuntary
Function - rhythmical involuntary contractions cut less powerfully than skeletal muscle
Locations -walls of hollow organs and digestive tract like the stomach and intestines , walls of respiratory tract and blood vessels
Bladder and skin

Question 8

Structure functions and locations of cardiac muscle

Answer 8

Structure - striated /striped but lack the long fibres of skeletal muscle
The fibres are striated and branched attached at their ends to adjoining by thick plasma membranes called intercalated discs
Involuntary
Function - rhythmical contraction to pump blood through the heart
Location - heart

Question 9

Structure function and locations of connective tissue

Answer 9

Structure - contains calls and elastic collagen fibres in matrix (extracellular fluid )
Between the fibres are fat storing cells (adipocytes) and cells of the immune system
Examples , blood lymph cartilage bone ligament tendon fibrous tissues etc

Question 10

Structure and functions of nervous tissue

Answer 10

Made of nerve cells (neurons) and glial cells
Generates and transmits electrical impulses sensory input controls muscles glands and homeostasis