GENERAL HISTOLOGY

Detailed explanation-1: -In phycology, a pneumatocyst is a floating structure that contains gas found on brown seaweed. A seaweed’s thallus may have more than one. They provide buoyancy to lift the blades toward the surface, allowing them to receive more sunlight for photosynthesis.

Detailed explanation-2: -Air bladders: a hollow, gas-filled structure organ which helps the seaweed float, found on the blade).

Detailed explanation-3: -Many seaweeds have buoyant gas-filled bladders (pneumatocysts) that hold fronds upright in the water column and enhance their access to light for photosynthesis.

Detailed explanation-4: -Pneumatocysts are usually found within the ilium or sacrum, adjacent to the sacroiliac joints. Fewer than 12 case reports of pneumatocysts of the spine were identified in the English-language literature; in eight of these cases, the lesions were present within the cervical spine (1–7).

Detailed explanation-5: -These hollow gas filled bladders are called pneumatocysts. Kelp blades also allow photosynthesis on both their top and bottom surfaces for maximum food production.