compact bone
Periosteum is the hard strong layer of bone
The four main layers of bones are the periosteum (outer layer), compact bone (dense and hard layer), spongy bone (porous inner layer), and bone marrow (innermost layer responsible for blood cell production).
Periosteum is a fibrous membrane that covers the outer surface of bones, containing blood vessels and nerves for nourishment and sensation, as well as a layer of osteogenic cells important for bone repair and growth. Compact bone, on the other hand, is the dense and hard outer layer of bone tissue that provides strength and protection. It is made up of tightly packed osteons, which are the basic functional units of bone.
Cortical bone, or compact bone, is one of two main types of osseous tissue. Cortical bone is dense and forms the surface of bones, contributing 80% of the weight of a human skeleton. It is extremely hard, formed of multiple stacked layers with few gaps. Its main function is to support the body, protect organs, provide levers for movement, and (shared with cancellous bone) store minerals. The other major type of bone is trabecular or cancellous bone; it is spongy and makes up the bulk of the interior of most bones, including the vertebrae.
the three layers are.... compact bone spongy bone bone marrow
Compact bone tissue.
Periosteum is the hard strong layer of bone
The Periosteum is a tough, tight fitting layer of bone that contains nerves and blood cells. It supplies cells of the hard bone below with needed nutrients.
The four main layers of bones are the periosteum (outer layer), compact bone (dense and hard layer), spongy bone (porous inner layer), and bone marrow (innermost layer responsible for blood cell production).
bone marrow
Periosteum is a fibrous membrane that covers the outer surface of bones, containing blood vessels and nerves for nourishment and sensation, as well as a layer of osteogenic cells important for bone repair and growth. Compact bone, on the other hand, is the dense and hard outer layer of bone tissue that provides strength and protection. It is made up of tightly packed osteons, which are the basic functional units of bone.
a souffle is hard at the top and soft under the top layer
Calcified bones are hard but not really solid. Spongy bone is hard with tiny holes in it. Periosteum is thin but very strong. The other name for it is outer membrane, it helps to rebuild bone cells. The last is cartilage. It is strong material that holds two bones together and allows them to glide over one another. Skull iz also a very strong bone.
Cortical bone, or compact bone, is one of two main types of osseous tissue. Cortical bone is dense and forms the surface of bones, contributing 80% of the weight of a human skeleton. It is extremely hard, formed of multiple stacked layers with few gaps. Its main function is to support the body, protect organs, provide levers for movement, and (shared with cancellous bone) store minerals. The other major type of bone is trabecular or cancellous bone; it is spongy and makes up the bulk of the interior of most bones, including the vertebrae.
The hard outer layer of the Earth is called the crust. It is made up of solid rock and is divided into tectonic plates that float on the semi-fluid mantle layer beneath. The crust is thinnest under the oceans and thicker beneath the continents.
you could get it at the deadly Nader's layer try giving it some honeycomb but it is hard to find it has a strong camouflage power
The layer of solid rock under the soil is called bedrock. Bedrock is the hard, solid rock beneath the Earth's surface that forms the foundation for soil and other materials above it.