Muscle Tissue Types

Voluntary muscle tissue, with striations and multiple nuclei. It's responsible for movement of the skeleton.

Involuntary muscle tissue with striations, but usually only one or two nuclei, found in the heart, with rhythmic contractions.

Involuntary muscle tissue, without striations and with a single nucleus per cell, found in various internal organs and blood vessels, providing sustained contractions.

The way muscle fibers are organized within a muscle, affecting its strength and range of motion (e.g., parallel, circular, pennate).

The fixed attachment point of a muscle, typically proximal (closer to the body's center).

The movable attachment point of a muscle, usually distal (further from the body's center).

Skeletal muscles enable voluntary body movements.

Muscle contractions generate heat, maintaining body temperature.

The skeletal system provides structural support and protection for the body. It also acts as levers for muscles, stores minerals like calcium and phosphorus, and produces blood cells.

A small, round bone embedded in a tendon, reducing friction and improving tendon leverage.

The growth plate found at the ends of long bones, responsible for bone lengthening during childhood and adolescence.

Dense, strong bone tissue forming the outer layer of bones.

The fundamental unit of compact bone, consisting of concentric layers of bone matrix surrounding a central canal.

The process of bone formation where hyaline cartilage is replaced by bone tissue, starting during fetal development.

Cells responsible for creating and secreting the bone matrix, which eventually matures into osteocytes.

Consists of 80 bones forming the skull, vertebral column, and rib cage, providing support and protection for vital organs.

Articular cartilage covers the joint surfaces, reducing friction during movement. It acts as a shock absorber and allows smooth gliding between bones.

Red bone marrow produces blood cells in spongy bone, while yellow bone marrow stores fat in the medullary canal of long bones.

The periosteum is a connective tissue covering bone, aiding in growth, repair, and providing attachment for muscles and tendons.

The diaphysis is the shaft of a long bone, made of compact bone, providing strength and support to the structure.

Osteogenesis is the process of bone formation, including the development of bone tissue from cartilage or other connective tissues.

Osteoblasts are bone-forming cells that create and secrete the organic bone matrix, which eventually hardens with mineral deposition.

Osteoclasts are bone-resorbing cells that break down old or damaged bone, releasing minerals back into the bloodstream.

Compact bone is dense and forms the outer layer of bones for strength, while spongy bone is lighter, porous, and found in the ends of bones, containing red marrow.