the skeleton system Flashcards
The bones that form the longitudinal axis of the body
The bones of the limbs and girdle
Includes the joints cartilage and ligaments
Functions of the bone
Support, protection, movement, storage and blood cell formation
Classification of bone
Compact bone spongy bone long bones, short bones, flat bones irregular bones
Dense and looks smooth and homogeneous
Composed of small needle like pieces of bone and lots of holes
Longer than they are wide and are mostly compact bone. All bones of the limbs except the patella and the wrist and ankle bones
Thin, flattened and usually curved. Most bones of the skull, the ribs, and the sternum are flat bones
The vertebrate, which make up the spinal column, and the hip bones.
What is the relationship between muscle function and bones?
Muscles use bones as levers to bring about body movement
Or shaft makes up most of the bone's length and is composed of compact bone
The diaphysis is covered and protected by a fibrous connective tissue membrane
Hundreds of connective tissue fibers
Ends of long bone
Covers the external surface of the epiphysis. Glassy hyaline cartilage, it provides a smooth, slippery surface that decreases friction at joint surfaces
In adult bone there is A thin line spanning the epiphysis that looks a bit different from the rest of the area.
A flat plate of hyaline cartilage seen in young growing bone. Causes the lengthwise growth of a long bone
Yellow marrow or medullary cavity
In adult cavity of the shaft is primarily a storage of adipose tissue.
In infants this area forms blood cells
Mature bone cells
Osteocytes are found within the matrix in tiny cavities
The lacunae are arranged in concentric circles
Surrounds the lamellae
Complex consisting of central canal and matrix rings
Tiny canals. Radiate outward from the central canals to all lacunae
What is the anatomical name for thru shaft of a long bone
What is the importance of canaliculi?
They carry nutrients to the bone cells
Bones form using hyaline cartilage structures as their models
Bone forming cells
Bone-destroying cells in bones
Bones don't start as bones. What do they begin as?
Membranes or cartilage
Large, rounded projection may be roughened
Narrow ridge or bone; usually prominent
Very large, blunt, irregularly shaped process ( the only examples are on the femur)
Narrow ridge of bones; less prominent than a crest
Small, rounded projection or process
Sharon, slender, often pointed projection
Any bony prominence
Bony expansion carried on a narrow neck
Smooth, nearly flat articular surface
Rounded articular projection
Armlike bar of bone
Narrow, slitlike opening
Round or oval opening through a bone
Indentation at the edge of a structure
Cavity within a bone, filled with air and lined with mucous membrane
Shallow, baseline depression in a bone, often serving as an articular surface
Formed by 2 sets of bone. Facial and cranium
Frontal bone, parietal bone, temporal bone,occipital bone, sphenoid bone and ethmoid bone
Maxillae, palatine bones, zygomatic bones, lacrimal bones, nasal bones, vomer bone, inferior nasal conchae, and mandible
Closely related to the mandible and temporal bones. It is unique in that it is the only bone that does not articulate directly with any other bone. Moveable base for the tongue
Fibrous membranes connecting the cranial bones
What are the 3 main parts of the axial skeleton?
Skull, vertebral column, and bony thorax
Only joints in the skull that are freely moveable
These are the temporomandibular joints
Which skull bone form the "keystone of the face"
Which bone has the cribriform plate and the crista galli?
Which bones are connected by the coronal suture? By the sagittal suture?
Frontal joins with the parietals at the coronal suture. Parietals joins one another at the sagittal suture