Metaplasia, a change in epithelial tissue type, can occur in response to chronic irritation. Which of the following is NOT a typical example of metaplasia?
Ciliated columnar epithelium of the bronchi changing to stratified squamous epithelium in smokers
Stratified squamous epithelium of the esophagus changing to columnar epithelium in Barrett's esophagus
Transitional epithelium of the bladder changing to stratified squamous epithelium due to increased urine flow
Glandular epithelium of the cervix changing to stratified squamous epithelium in response to chronic infection
Related Questions
Cilia facilitate the movement of mucus and other particles in a particular direction. Which of the following human organs utilizes ciliated epithelium for this purpose?
Fallopian tubes
Ureters
Small intestine
Large intestine
Ciliated epithelium is present in
Stomach lining
Respiratory tract
Small intestine
Surface of the skin
Which of the following statements are incorrect regarding ciliated epithelium?
I. Cells possess cilia on their free surface
II. They bear microvilli at the free ends to increase surface area of the organ
III. Mucous spreads over the epithelium as a thin layer
IV. It is found in the lining of the small intestine
I and III
I and II
II and IV
III and IV
If the cilia in the human trachea are damaged, which of the following is most likely to occur?
Enhanced gas exchange
Improved digestion
Increased susceptibility to respiratory infections
Reduced blood flow to the lungs
Which of the following is a function of ciliated epithelial cells in the human respiratory system?
Absorption of nutrients
Secretion of hormones
Removal of foreign particles
Gas exchange
The ciliated epithelial cells propel substances in a specific direction. Where are these cells primarily located in the human respiratory system?
Bronchioles
Alveoli
Trachea
Oesophagus
Which of the following statements are incorrect regarding ciliated epithelium?
I. Cells possess cilia on their free surface
II. They bear microvilli at the free ends to increase surface area of the organ
III. Mucous spreads over the epithelium as a thin layer
IV. It is found in the lining of the small intestine
I and III
I and II
II and IV
III and IV
