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Bones, Bodies and Disease
Test
132
Science
Undergraduate 4
02/22/2009

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Term
INFECTION leads to
Definition
INFLAMMATION of tissues
Term
INFECTION leads to INFLAMMATION of tisses by
Definition
TRANSMISSION via the bloodstream through the skin and/or open wounds
Term
Infection Problem #1
Definition
Although infections can kill, only in the most severe cases is there any evidence on the bone.
Term
Infection Problem #2
Definition
Diseases in the past may now be extinct or unknown nowadays e.g. Hungry Hall Mounds.
Term
Osteitis
Definition
An infection of the bone due to bacteria, degeneration or trauma.
Term
Periostitis
Definition
Infection of the periosteum.
Term
Osteomyelitis
Definition
Infection of the bone and bone marrow - bone swells rather than breaks.
Term
[image]
Definition
Periostitis
Term
Pyogenic
Definition
Capable of producing pus
Term
Causative organisms
Definition
90% Staphylococcus aureus and to a lesser extent, Streptococcus.
Term
If we are talking about osteomyelitis following trauma, then..
Definition
limb and cranial injuries will probably less lethal than abdominal injuries.
Term
If we are talking about osteomyelitis following trauma, then limb and cranial injuries will probably less lethal than abdominal injuries, therefore evidence of osteomyelitis is more likely to be found in...
Definition
the cranium and limbs than in the skeleton or the trunk.
Term
What does the course of Pyogenic Osteomyelitis involve?
Definition
Bone marrow
Term
In Pyogenic Osteomylitis, what spreads through the marrow cavity and raises the periosteum?
Definition
Pus
Term
Sequestrum
Definition
Areas of dead bone developed in Pyogenic Osteomyelitis.
Term
Involucrum
Definition
A new bone which is grown as a response to the periosteum.
Term
Cloaca
Definition
Drainage holes
Term
[image]
Definition
Osteomyelitis
Term
[image]
Definition
Osteomyelitis
Term
Metaphysis
Definition
area of bone growth on the ends of the diaphysis
Term
Diaphysis
Definition
Shaft
Term
Necrosis
Definition
bone death
Term
What usually doesn't appear on the metaphysis?
Definition
A necrosis (bone death)
Term
Why isn't there usually a necrosis on the metaphysis?
Definition
Because the pus can easily drain through the cortex.
Term
When were infections more common?
Definition
After lifestyles changed from hunting to agriculture.
Term
Why were infections more common after lifestyle changes? (2)
Definition
(1) With sedentism there is an accumulation of wastes and infectious organisms.
(2) Once people sedentary then even mild wounds often result in infection, especially on the tibiae Also the change in diet substitutes a varied but less reliable diet for less varied but more reliable diet.
Term
What are the best known infectious diseases? (3)
Definition
(1) Tuberculosis
(2) Syphilis
(3) Leprosy
Term
A disease of the bones and joints is caused by the Mycobacterium tuberculosis (human or bovine type).
Definition
Tuberculosis
Term
How does Tuberculosis usually penetrate?
Definition
Through the respiratory tract.
Term
What is the primary focus of the penetration of Tuberculosis through the respiratory tract? (2)
Definition
Lungs and lymph nodes
Term
In Tuberculosis, if the lesion fails to heal, what may spread vis the bloodstream?
Definition
Bacilli
Term
Skeletal TB is only how much of all the incidences of the disease?
Definition
3%
Term
Who is Tuberculosis more common in?
Definition
Males
Term
Where are preferred sites for skeletal lesions in Tuberculosis?
Definition
In areas with hemopoietic (red) marrow and TB found in tarsal, carpals, epiphyses, diaphyses, and in cranial vault.
Term
Upper ends of long bones and the spine.
Definition
Areas with hemopoietic (red) marrow.
Term
Pott's Disease
Definition
Tuberculosis of the spine
Term
What part of the spine is often involved in Pott's Disease?
Definition
The lumbar, but also the lower thoracic region.
Term
What is the most usual portion of the vertebra involved in Pott's disease?
Definition
The body
Term
In Pott's Disease, the destruction of vertebral body leads to what? (2)
Definition
(1) The weakening and a forward collapse of the bodies (2) causing a sharp angular kyphosis (known as gibbus) - that is a hunch back appearance of the spine.
Term
[image]
Definition
Spinal T.B.
Term
Sacra-iliac joint
Definition
The adjoining auricular surfaces
Term
Which joint is an extension of spinal T.B.?
Definition
Sacra-iliac joint
Term
In Tuberculosis of the hip, which joint has the most common involvement?
Definition
Sacra-iliac joint
Term
In Tuberculosis of the hip, what is formed into soft tissue which can eat right into the bone?
Definition
Abscesses
Term
What is the problem with T.B.?
Definition
Differential diagnosis
Term
[image]
Definition
T.B. of the hip
Term
Which disease has literary references found to ancient history in the Old world, and was brought to the New World via colonization?
Definition
Leprosy (Hansen's disease)
Term
What is Leprosy caused by?
Definition
Mycobacterium leprae
Term
How is leprosy contagious?
Definition
Through skin contact or inhaling bacterium.
Term
Is Leprosy terminal?
Definition
No, you can live for a long time.
Term
How does leprosy work?
Definition
By attacking the peripheral nerves.
Term
In Leprosy, what happens with the loss of nerve supply? (2)
Definition
(1) There is a loss of sensation and (2) eventual bone atrophy.
Term
What characteristics did Moller Christenson find present in the bones of lepers? (3)
Definition
(1) Disappearance of anterior nasal spine.
(2) Rounding and widening of nasal aperture.
(3) Partial resorption of premaxillary alveolar area with or without the loss of the upper incisors.
Term
[image]
Definition
Leprosy
Term
[image]
Definition
Leprosy
Term
Syphilis
Definition
is one of a group of treponemal infection.
Term
Syphilis is one of a group of treponemal infections (Anaerobic parasite belonging to Genus Treponema) which includes: (4)
Definition
(1) pinta (does not affect the skeleton)
(2) yaws
(3) endemic syphilis (bejel)
(4) venereal syphilis
Term
What area of the world does Yaws typically afflict?
Definition
In humid tropical regions.
Term
In Yaws, how do the infecting organisms affect the body?
Definition
They enter through the skin or mucous membranes.
Term
When is Yaws primarily acquired?
Definition
In childhood.
Term
The bending of what bone is observed in Yaws?
Definition
Tibia
Term
[image]
Definition
Yaws and saber shin
Term
What does late Yaws show? (2)
Definition
(1) Destructive inflammation of single phalanges (dactylitis)
(2) affects long bones, especially the tibia, radius and ulna.
Term
What do the bones in late Yaws show? (2)
Definition
gummy tumors and osteomyelitis
Term
Gangosa
Definition
Nasal voice in Spanish due to the destruction of the nasal septum and hard palate
Term
Which disease is non venereal?
Definition
Endemic Syphilis (Bejel or Treponarid)
Term
Where is endemic syphilis found?
Definition
Nowadays it is only found in underdeveloped countries with warm arid climates, but it was found historically in Ireland, Norway, Greece and Russia.
Term
When and how is endemic syphilis acquired?
Definition
It is acquired in childhood under non-hygienic conditions - body contact, sharing food and drink. As living conditions improve, the incidence of bejel decreases.
Term
How common are bone lesions in Endemic Syphilis?
Definition
Rare, 1-5% of all cases
Term
What bones are most frequently affected in endemic syphilis?
Definition
The tibia and fibula then the radius and ulna, and finally the clavicle, phalanges, and calcaneus.
Term
In endemic syphilis, what are the favored sites of bony changes?
Definition
Diaphyses and metaphyses
Term
In endemic syphilis, are joint lesions common or rare?
Definition
Rare
Term
In endemic syphilis, bone lesions are like those of which other diseases? (2)
Definition
Yaws and venereal syphilis
Term
What are the two forms of venereal syphilis?
Definition
Congenital and acquired
Term
What type of venereal syphilis invades the fetus of an affected mother after the third or fourth month in utero, and is spread to virtually every bone in the body.
Definition
Congenital syphilis
Term
What are the two categories of bony involvement with congenital syphilis?
Definition
(1) early congenital syphilis: birth to 3/4 years and
(2) late congenital syphilis: 5-15 years this is a flare up of an earlier case.
Term
In early congenital syphilis, almost all cases have bone involvement, but how many cases will heal, leaving no trace of the disease?
Definition
1/2 to 3/4 of the cases
Term
Are bone lesions more or less rare in late congenital syphilis?
Definition
Bone lesions are more rare, but more serious.
Term
In venereal congenital syphilis, what are the major teeth involved?
Definition
Maxillary incisors and all the first molars.
Term
Hutchinson's teeth
Definition
Incisors with a notch through the middle of the incisal surface in venereal congenital syphilis.
Term
Mulberry molars
Definition
Are smaller than the normal molar and the occlusal surface is very rough and irregular.
Term
How is venereal syphilis acquired?
Definition
Passed through sexual contact or through the birth process via a chancre or sore, or via the blood stream.
Term
[image]
Definition
Syphilis on skull
Term
[image]
Definition
Tertiary syphilis in long bones
Term
Osteosclerosis
Definition
An abnormal increase in bone density due to infection.
Term
Gummata
Definition
Soft tumors which contain bacteria and erode the cranial surface in venereal acquired syphilis.
Term
How do stellate lesions appear?
Definition
Wrinkled
Term
With nasal bone involvement in tertiary syphilis, thin bones are destroyed resulting in damage or loss of which bones? (3)
Definition
(1) nasal septum, hard palate, and medial walls of the maxillary sinuses.
Term
Saddle nose of syphilis
Definition
Loss of bony support
Term
Arthritis
Definition
an inflammation of the joints
Term
Primary arthritis
Definition
Specific to age and changes as articular cartilage of synovial joints breaks down and bone abrades on bone - eburnation.
Term
Osteophytes
Definition
A buildup of new bone at joint surfaces.
Term
Secondary arthritis
Definition
Sets up after an injury or systemic disease such as tuberculosis.
Term
What are the causes of osteoarthritis? (4)
Definition
1. aging joints lose some vascular supply therefore cannot heal themselves
2. unusual wear and tear - by athletes
3. genetics - studies on mice show a genetic predisposition
4. diet - carrageenan (ice cream) produces arthritis in rats.
Term
[image]
Definition
Arthritis
Term
Osteophytosis
Definition
Arthritis found in intervertebral joints (secondary cartilaginous joints)
Term
Where and with whom is Osteophytosis prevalent?
Definition
In all N. Am. over the age of 60 and a higher male incidence
Term
What occurs in Osteophytosis?
Definition
Gradual degeneration of intervertebral discs.
Term
Schmorl's nodes
Definition
Herniations into the body of the vertebrae.
Term
[image]
Definition
Osteophytosis
Term
Rheumatoid Arthritis
Definition
is a collagen disease with an autoimmune component.
Term
Rheumatoid Arthritis involves thickening of the what that leads to swelling of the joints?
Definition
synovium
Term
Who is Rheumatoid Arthritis more commonly found in?
Definition
It is three times more common in women than men.
Term
Which joints do Rheumatoid Arthritis especially affect?
Definition
The metacarpal joints and the interphalangeal joints.
Term
Ankylosing spondylitis
Definition
is a chronic inflammatory disease affecting the spine.
Term
Who does Ankylosing spondylitis primarily affect?
Definition
Males under thirty
Term
Is Ankylosing spondylitis genetic?
Definition
Most likely.
Term
[image]
Definition
Ankylosing spondylitis
Term
A disease which is present at birth, can include a cleft lip and palate, and achondroplastic dwarfism.
Definition
Congenital Disorders
Term
[image]
Definition
Cleft Palate
Term
[image]
Definition
Achondroplastic Dwarfism
Term
Osteoma
Definition
slow growing and non harmful
Term
malignant
Definition
rapidly growing e.g. osteosarcoma (Ted Kennedy's son)
Term
[image]
Definition
Button osteoma, a benign tumor
Term
[image]
Definition
Malignant tumor, Osteosarcoma
Term
Endocrine Disorders
Definition
Pituitary dwarfism (caused through deficiency of growth hormone due to malfunction of pituitary.)
Term
[image]
Definition
Pituitary Dwarfism
Term
Metabolic Disorders include:
Definition
dietary deficiencies rickets and scurvy
Term
Anemias
Definition
diseases of the blood forming tissues which can be either genetic or acquired.
Term
What is a type of anemia?
Definition
Sickle cell anemia
Term
How can anemia become acquired?
Definition
Due to diets low in meat and iron and also malnutrition
Term
In anemia, what expands in bones where the blood formation is supposed to take place.
Definition
Marrow
Term
What do lesions associated with anemia usually affect?
Definition
The skull vault
Term
The lesions associated with anemia which usually affect the skull vault lead to what?
Definition
A porous periosteum called porotic hyperostosis.
Term
[image]
Definition
Anemia
Term
[image]
Definition
Anemia
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