The concentric layers are the sclera,conjunctiva,and the cornea
Concentric lamellae.
there were many layers
The core, the matle, and the crust.
Between layers of concentric lamellae, which are found in bone tissue, there are small spaces called lacunae. These lacunae contain osteocytes, the mature bone cells that maintain the bone matrix. Additionally, tiny channels called canaliculi connect the lacunae, allowing for communication and nutrient exchange between osteocytes and the blood supply in the bone.
The layers of calcified matrix in bone tissue are called lamellae. These lamellae are arranged in concentric circles around central canals called Haversian canals, forming the structure known as an osteon or Haversian system.
Concentric lamellae
Concentric Lamellae -JSO
Sclera, choroid, and the retina.
Compact bone tissue is arranged in concentric layers called lamellae around a central canal that contains blood vessels and nerves. These layers give compact bone its strength and resilience, helping to support the body and protect vital organs.
The matrix for bone is laid down in thin layers called lamellae. The lamellae are arranged in concentric patterns around tubes called osteonic canals. Between the layers of lamellae the osteocytes are placed in depressions called lacunae. This pattern of concentric circles forms a cylinder-shaped unit called the osteon.
The nearly spherical ice pellets with concentric layers formed by the freezing of water layers are known as ice pellets or graupel. Graupel forms when supercooled water droplets freeze on snowflakes or ice crystals, creating a layered structure.