Bone Tissue

Skeletal System

Includes bones, cartilage, and ligaments; serves multiple functions including support, protection, and storage.

Appendicular Skeleton

The part of the skeleton that includes limbs and the girdles that support them, excluding the axial skeleton (skull, vertebrae, ribs, sternum).

Skeletal System

Includes bones, cartilage, and ligaments; serves multiple functions including support, protection, and storage.

Appendicular Skeleton

The part of the skeleton that includes limbs and the girdles that support them, excluding the axial skeleton (skull, vertebrae, ribs, sternum).

Bone Tissue

The type of connective tissue that makes up the bone; includes types such as compact and spongy bone.

Osteoblast

A type of bone cell that is responsible for forming new bone tissue.

Osteoclast

A type of bone cell that breaks down bone tissue, allowing for the resorption of bone.

Osteocyte

A mature bone cell that helps maintain bone matrix and communicates with other bone cells.

Lacunae

Small cavities in bone tissue where osteocytes reside.

Canaliculi

Tiny canals that connect lacunae, allowing for communication and nutrient exchange between osteocytes.

Growth Plate

A line of cartilage in growing bones that allows for lengthening; becomes an epiphyseal line in adults.

Compact Bone

The dense outer layer of bone that provides strength and structure, organized into osteons.

Spongy Bone

A lighter and less dense type of bone found inside bones, contains red bone marrow and is structured with trabeculae.

Red Bone Marrow

Tissue found in the cavities of some bones that produces blood cells; more prevalent in children.

Yellow Bone Marrow

Fatty tissue found in the cavities of some bones in adults that stores fat and does not produce blood cells.

Periosteum

A dense layer of connective tissue enveloping the bones except at the surfaces of the joints.

Medullary Cavity

The central cavity of long bones where marrow is stored.

Electrolyte Balance

The skeleton's role in regulating ions like calcium and phosphate for various physiological functions.

Calcium Phosphate

A mineral that helps form the bone matrix, contributing to the strength and hardness of bones.

Ligaments

Fibrous connective tissues that connect bone to bone at joints.

Tendons

Fibrous connective tissues that attach muscles to bones.

Collagen

A protein that provides structure and strength to various connective tissues, including bone.

Trabeculae

The structural unit of spongy bone, arranged in a lattice framework.

Hemopoietic Tissue

Tissue involved in the production of blood cells, typically found in red bone marrow.