CBD Medical Terminology Chptr 4 Flashcards
DO
DO Doctor of Osteopathy
MD
MD Doctor of Medicine
DC
DC Doctor of Chiropractic
PT
PT Physical Therapist
There are four components of the skeletal system
- bones,
- cartilage,
- tendons, and
- ligaments.
Your skeletal system provides: SUPPORT
Support: The bones of your vertebral column, pelvis, and legs hold up your body. The jawbone supports your teeth.
Your skeletal system provides: PROTECTION
Protection: The skull protects your brain. The vertebral column protects your spinal cord. The rib cage protects your heart and lungs.
Your skeletal system provides: BLOOD FORMATION
Blood formation: Bone marrow in many bones is the major producer of blood cells, including most of those in your immune system
Your skeletal system provides: MINERAL STORAGE & BALANCE
Mineral storage and balance: The skeletal system stores calcium and phosphorus and releases them when your body needs them for other purposes.
Your skeletal system provides: DETOXIFICATION
Detoxification: Bones remove metals like lead and radium from your blood, store them, and slowly release them for excretion.
Your skeletal system provides: ENDOCRINE GLANDS
Endocrine regulation: Bone cells release a hormone called osteocalcin, which increases insulin secretion and reduces stores of fat.
1 Long
Classification of Bones
The bones of your skeletal system are classified by their shape. Each falls into one of the following four shape categories:
•Long (considerably longer than they are wide), like the main bones of the limbs, palms, soles, fingers, and toes;
2 Short
Classification of Bones
The bones of your skeletal system are classified by their shape. Each falls into one of the following four shape categories:
Short (nearly as long as they are wide), like the patella (kneecap) and the bones of the wrists and ankles;
3 Flat
Classification of Bones
The bones of your skeletal system are classified by their shape. Each falls into one of the following four shape categories:
Flat, like the bones of the skull and the ribs;
4 Irregular
Classification of Bones
The bones of your skeletal system are classified by their shape. Each falls into one of the following four shape categories:
Irregular, like the vertebrae.
diaphysis
the shaft or central part of a long bone.
cortical bone
Cortical bone is the dense outer surface of bone that forms a protective layer around the internal cavity. This type of bone also known as compact bone makes up nearly 80% of skeletal mass and is imperative to body structure and weight bearing because of its high resistance to bending and torsion.
epiphysis
epiphysis
1.
the end part of a long bone, initially growing separately from the shaft.
2.
another term for pineal.
epiphysial plate
The epiphyseal plate (or epiphysial plate, physis, or growth plate) is a hyaline cartilage plate in the metaphysis at each end of a long bone.
periosteum
a dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints.
it protects the bone and anchors blood vessels and nerves to the bone’s surface
medulla
the inner region of an organ or tissue, especially when it is distinguishable from the outer region or cortex (as in a kidney, an adrenal gland, or hair).
Haversian canals.
any of the minute tubes which form a network in bone and contain blood vessels.
BMD
BMD bone mineral density
DEXA
DEXA dual energy x-ray absorptiometry
FDA
FDA Food and Drug Administration
IU
IU international unit(s)
mg
mg milligram
osteoporosis
One of the major bone diseases is osteoporosis, which results from a loss of bone density
More common in women than in men, the incidence of osteoporosis increases with age
osteopenia
reduced bone mass of lesser severity than osteoporosis.
Osteomyelitis:
an inflammation of bone and bone marrow caused by a bacterial infection, such as staphylococcus.
Osteomalacia:
a disease (known as rickets in children) caused by vitamin D deficiency where the calcium-lacking bones become soft and flexible, lose their ability to bear weight, and become bowed.
Achondroplasia:
a very rare condition where the long bones stop growing in childhood, but the axial skeleton bones are not affected (Figure 4.5). People with this condition are short in stature, with the average adult measuring about 4 feet tall. Although intelligence and life span are normal, the disease is caused by a spontaneous gene mutation that then becomes a dominant gene for succeeding generations.
Osteogenesis imperfecta (OI)
a rare genetic disorder producing very brittle bones that are easily fractured or broken, often in utero (while inside the uterus).
Primary bone cancer is found in three forms:
- Osteogenic sarcoma occurs most often in bone cells around the knee in adolescents.
- Ewing sarcoma occurs most often in children and adolescents.
- Chondrosarcoma arises in cartilage cells, often in the pelvises of older people.
Osteogenic sarcoma
Osteogenic sarcoma - BONE CANCER- occurs most often in bone cells around the knee in adolescents.
Chondrosarcoma
.Chondrosarcoma - BONE CANCER - arises in cartilage cells, often in the pelvises of older people.
Ewing sarcoma
Ewing sarcoma - BONE CANCER - occurs most often in children and adolescents.
Closed (also called simple fracture)
Closed (also called simple fracture)
A bone is broken, but the skin is not broken.
Open (also called compound fracture)
Open (also called compound fracture)
A fragment of the fractured bone breaks the skin, or a wound extends to the site of the fracture.
Displaced (broken bone)
Displaced The fractured bone parts are out of line.
complete (broken bone)
Complete A bone is broken into at least two fragments.
Incomplete fracture / break
Incomplete The fracture does not extend completely across the bone. It can be hairline, as in a stress fracture in the foot, when there is no separation of the two fragments.
Comminuted break
Comminuted The bone breaks into several pieces, usually two major pieces and several smaller fragments.
Transverse fracture / break
Transverse The fracture is at right angles to the long axis of the bone.
Impacted fracture / break
Impacted The fracture consists of one bone fragment driven into another, resulting in shortening of a limb.
spiral fracture / break
Spiral The fracture spirals around the long axis of the bone.
oblique fracture / break
Oblique The fracture runs diagonally across the long axis of the bone.
Linear fracture / break
Linear The fracture runs parallel to the long axis of the bone.
greenstick fracture
Greenstick This is a partial fracture. One side breaks, and the other bends.
pathologic fracture
Pathologic The fracture occurs in an area of bone weakened by disease, such as cancer.
Compression fracture
Compression The fracture occurs in a vertebra from trauma or pathology, leading to the vertebra being crushed.
stress fracture
Stress This is a fatigue fracture caused by repetitive, local stress on a bone, as occurs in marching or running.
osteoblasts
a cell that secretes the matrix for bone formation.
callus
the bony healing tissue which forms around the ends of broken bone.
a hard formation of tissue, especially new tissue formed over a wound.
cancellous
denoting bone tissue with a meshlike structure containing many pores, typical of the interior of mature bones.
C5
C5 the fifth cervical vertebra
C5-C6
C5-C6 the intervertebral space between the fifth and sixth cervical vertebrae
C6
C6 the sixth cervical vertebra
MRI
MRI magnetic resonance imaging (diagnostic technique that produces focused slices of images of structures)
Your axial skeleton, the upright axis of your body, includes the:
- vertebral column,
- skull, and
- rib cage.
What does the Axial Skeleton protect
The axial skeleton protects the brain, spinal cord, heart, and lungs—most of the major centers of human physiology.
Within the vertebral column, there are 26 bones divided into the following five regions
Cervical region of axial skeleton
Cervical region, with 7 vertebrae, labeled C1 to C7 and curved anteriorly;
Thoracic region of axial skeleton
Thoracic region, with 12 vertebrae, labeled T1 to T12 and curved posteriorly;
Lumbar region of axial skeleton
Lumbar region, with 5 vertebrae, labeled L1 to L5 and curved anteriorly;
Sacral region of axial skeleton
Sacral region, with 5 bones that in early childhood fuse into 1 bone curved posteriorly; and
Coccyx (tailbone) of axial skeleton
Coccyx (tailbone), with 4 small bones fused together into 1 bone curved posteriorly.