Respiratory system

Question 1

histological characteristics of epiglottis?

Answer 1

• Has a laryngeal and lingual srfc.
• both stratified squamous non-keratinized epi
• At base–>cilicated pseudostrat columnar epi
• summucosa–> seromucous glands

Question 2

histological characteristics of larynx?

Answer 2

• has vestibular gold (sup) and vocal fold (inf)
• vestibule–> ciliated, pseudostrat columnar epi
  lamina propria: higly cellular, vascular, loose CT
• vocal fold–> non-ker strat squamus epi
  lamina propria: lesscellular, vascular, dense CT

Question 3

what prevents folding during phonation?

Answer 3

• quadrangular membrane and conus elasticus

Question 4

histological characteristics of trachea?

Answer 4

• Hyaline cartilage
• trachealis m. on post srfc of membranous part
• pseduostrat, cilliated columnar epi
• lamina propria–> hihly cellular, vasculat, deeper part elastic fiber rich
• gobled cels w/ mucigengranules in ciliated cells¨
• Adventitia.