First Line Of Defense

Question 1

These are () barriers

Answer 1

Physical

Question 2

() & () membranes
Along with their secretion
*() is resistant to weak acids and bases,bacterial enzymes and toxins
() provides similar mechanical barriers

Answer 2

skin and mucous
keratin
mucosae

Question 3

Chemical barriers:
(): acidity of skin,stomach,& some mucous secretions inhibits growth of microorganisms
() gentail area: slightly acidic pH to vaginal secretions
():inhibit/destroy microorganisms
Lysozyme of saliva
Respiratory mucus
Lacrimal fluid
Gastric enzymes

Answer 3

Acid
Female
Enzymes

Question 4

()-ciliary escalator system
() coated hairs in nose trap inhaled particles
Cilia of upper () bring debris/microorganisms-rich mucus toward mouth
Physical barriers can easily breach basic cuts/abrasions

Answer 4

Muco
Mucus
respiratory tract