MICROANATOMY

EPITHELIUM CONNECTIVE TISSUE SKIN

EPITHELIA GLANDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following epithelial tissues is known for being located in an area of high diffusion like walls of blood vessels or in the alveoli of the lungs.
A
Stratified Columnar
B
Simple Columnar
C
Stratified Squamous
D
Simple Squamous
Explanation: 

Detailed explanation-1: -Simple squamous epithelia are found lining the cavities of the body including the pericardial, pleural, and peritoneal cavities, or in areas where passive diffusion occurs, such as glomeruli in the kidney and alveoli in the respiratory tract.

Detailed explanation-2: -Simple squamous epithelial cells are extremely thin and flat and form a delicate lining. In cells lining, blood vessels or lung alveoli, transportation of substances occurs through squamous epithelium.

Detailed explanation-3: -Where is stratified squamous epithelium found? Stratified squamous epithelium is found in the outer layer of the skin. Some areas where non-keratinized stratified squamous epithelium is found are conjunctiva of the eye, rectum, parts o f oesophagus, lining of the oral cavity, external female genitalia.

Detailed explanation-4: -The alveolus is composed of alveolar epithelial type 1 cells, alveolar epithelial type 2 cells and capillary cells. Type 1 cells are large, squamous epithelial cells that cover  95% of the alveolar surface area.

There is 1 question to complete.