MI: Fate of Foreign Materials

CD40-communicates with lymphocytes

The Langerhans cells trap foreign molecules and present them to the lymphocyte

The Langerhans cells trap foreign molecules and present them to the lymphocyte

Bacterial polysaccharides and molecules are absorbed by the chylomicrons in the intestine andare removed by the lacteals and into the mesenteric lymph nodes.

Bacterial polysaccharides and molecules are absorbed by the chylomicrons in the intestine andare removed by the lacteals and into the mesenteric lymph nodes.

If the particles enter the blood from the intestine, they are removed by the Kupffer cells.

If the particles enter the blood from the intestine, they are removed by the Kupffer cells.

If the particles enter the blood from the intestine, they are removed by the Kupffer cells.

If the particles are larger than 5 μm in diameter they stick to the mucous layer then removed viacoughing.

If the particles are larger than 5 μm in diameter they stick to the mucous layer then removed viacoughing.

The smaller particles may reach the alveoli, however they are going to ingested by the alveolarmacrophages and carry them to the bronchoalveolar junction and removed by mucus flow.

The smaller particles may reach the alveoli, however they are going to ingested by the alveolarmacrophages and carry them to the bronchoalveolar junction and removed by mucus flow.

The smaller particles may reach the alveoli, however they are going to ingested by the alveolarmacrophages and carry them to the bronchoalveolar junction and removed by mucus flow.

Some particles are cleared in the lymph nodes while soluble molecules enter the circulation anddistributed throughout the body.

Some particles are cleared in the lymph nodes while soluble molecules enter the circulation anddistributed throughout the body.

Some particles are cleared in the lymph nodes while soluble molecules enter the circulation anddistributed throughout the body.

Exposure to industrial dust or cigarette smoke, the alveolar macrophage system may be blockand the lungs are more susceptible to microbial invasion.

Exposure to industrial dust or cigarette smoke, the alveolar macrophage system may be blockand the lungs are more susceptible to microbial invasion.