Chapter 12 Skeletal System Flashcards
What does the skeletal system do?
Supports and protects the body, produces blood cells, stores minerals and absorbs fat, and permits flexible body movement.
Bone composition includes?
Periosteum, cartilage, ligaments and osteocytes.
Three main regions of the bone are?
Epiphysis, metaphysis and diaphysis.
Bones are classified in what shapes?
Long bones, short bones, flat bones and irregular bones.
What are the two main skeletons?
Axial skeleton and appendicular skeleton.
The axial skeleton includes?
Skull, hyoid bone, vertebral column, and rib cage.
The appendicular skeleton includes?
Pectoral girdle, upper limb, pelvic girdle and lower limb.
Articulations?
Bones connected by joints.
Three types of cells involved in bone growth, remodeling and repair are?
Osteoblasts, osteocytes and osteoclasts.
What things affect bone growth?
Ossification and epiphyseal plate.
What cells affects the growth of bones?
Vitamin D, growth hormones, and sex hormones.
What are the four steps to repair a fracture?
Hematoma, fibrocartilaginous callus, bony callus then remodeling.
Bone recycling allows the body to regulate what?
The amount of calcium in the blood
Which function of the skeleton do the rib cage, vertebral column, and skull provide?
Protect soft parts
All 12 pairs of ribs connects directly to the thoracic vertebrae in the back and the sternum in the front.
False
