Chức năng của tế bào tạo xương (osteoblast) là gì?

It makes up the enzymes that power many chemical reactions and the ... Because we don't store amino acids, our bodies make them in two different ways ... The skin is composed of two main layers: the epidermis, made of closely packed epithelial cells, and the dermis, made of dense, irregular connective tissue. Overview. The human body consists of 206 bones that provide a framework for support of the body's soft tissues and organs while also being essential for ... The gray matter is composed of neurons and their supporting cells and is ... protected organ in the human body. It is protected from the external ... our skeletons support our bodies, anchor our ______ and protect our internal organs ... - the red marrow inside bones produced our body's _____ cells. Jan 4, 2012 ... This textbook is dedicated to the thousands of employees and volunteers of the American Red Cross who contribute their time and talent to ... Our work includes: Protecting habitat and designating critical habitat; Breeding staghorn corals in nurseries and planting them into the wild; Increasing ... Breast cancers can start in the lobes and ducts. The breast has fatty and fibrous tissue. Inside are 15 to 20 glands called lobes. Each lobe has many smaller ... Allergic reactions begin in your immune system ... The immune system is made up of a complex and vital network of cells and organs that protect the body from ... The spinal cord lies inside the spinal column, which is made up of 33 bones called vertebrae. Five vertebrae are fused together to form the sacrum.