3.3 Histology Bone Cells Bryce LaRoche

Whats an Osteocyte?

A bone cell

What does a compact bone look like?

They are arranged in concentric circles called Haversian systems (Osteons)

What does a spongy bone look like?

The osteocytes are arranged in a spongy network

What are osteoblasts?

Osteocytes that secrete the mineral calcium from the bone tissue (Ossifications)

What are osteoclasts?

Osteocytes that break down the mineral calcium (bone resorption)

What is resorption?

The breaking down of calcium

What is ossification?

The forming of bone tissue

What are haversian systems?

The circular arrangement of cells in concentric circles

What is a diaphysis?

The shaft of the bone

What is an epiphysis?

The enlarged wide end of the bone

What is in the medullary cavity?

red and yellow bone marrow

What is hemopoiesis?

Blood creating

What is hemopoietic tissue?

Blood and lymph tissues

What are erythrocytes?

Red blood cells

What are Leukocytes?

White blood cells

What are platelets?

Produce thromboplastin which triggers blood clotting

What is thromboplastin?

Thrombocytes which triggers blood clotting

What are neoplasms?

New growths called tumors

What are benign tumors?

Increased multiplication of tissue cells Mitosis

What are malignant tumors?

Tumors with increased multiplication of tissue cells that exhibit metastasis (migration)