Bacteria and viruses can infect the conjunctiva. Redness and tearing or discharge are common symptoms, and some people have sensitivity to light. Good hygiene helps prevent the infection from spreading to the other eye or to someone else's eye. Antibiotic eye drops are often given.
Cartilage and Adipose. Cartilage. Cartilage is a specialized connective tissue that provides for both strength and flexibility. It is mainly found in the form of hyaline cartilage (hyalos means glass in Greek), which is so named because of its smooth, glassy bluish-white appearance when fresh.
The mouth is the entrance to both the digestive and the respiratory systems. The inside of the mouth is lined with mucous membranes. When healthy, the lining of the mouth (oral mucosa) is reddish pink. The gums (gingivae) are paler pink and fit snugly around the teeth. The roof of the mouth (palate) is divided into two parts. The front part has ridges and is hard (hard palate).