Clinical Conditions: Bone, Lymphatic and Nervous System Flashcards
osteoarthritis
a degenerative disease which leads to mechanical failure of articular cartilage.
- leads to bone rubbing against bone
- pain and inflammation
who is affected by OA
Most people over 60 have it to some degree.
Younger people with it tend to have had joint injury
rheumatoid arthritis
autoimmune disease where B lymphocytes produce rheumatoid factor
rheumatoid arthritis causes
inflammation of the synovium and causes consequent thickening oft he joint capsule- damages bone and articular cartilage surrounding it
- both bone and cartilage disintegrates
who is affected by RI
those between 30 to 50 most common
osteogenesis inperfecta caused by
mutation in COL1A gene
osteogenesis inperfecta leads to
incorrect production of collagen fibres
incorrect production of collagen fibres leads to
weak bones (increased fracture risk)
short height
blue sclera (white of the eye)
who is affected by osteogenesis inperfecta
neonates/children
rickets caused by
vitamin D deficiency
rickets leads to
poor calcium mobilisation- weekend/soft bones
- ineffective mineralisation
- bowed legs
rickets affects
children
osteomalacia caused by
vitamin D deficiency
osteomalacia leads to
poor calcium mobilisation- weekend/soft bones
- ineffective mineralisation
osteomalacia affects
children
difference between osteomalacia and rickets
rickets in children and osteomalacia in adults
osteoporosis type 1
Increase in osteoclast number
Loss of oestrogen after menopasue
osteoporosis type 2
Loss of osteoblast function
Loss of oestrogen and androgen
osteoporosis leads to
larger spaces between trabeculae giving a porous appearance
osteoporosis type 1 affects
postmenopausal women
osteoporosis type 2 affects
older men and women
secondary osteoporosis caused by
drug therapy
metabolic bone diseases
malnutrition
secondary osteoporosis leads to
larger spaces between trabeculae living a porous appearance
-results from incomplete filling of osteoclast respiration pays
secondary osteoporosis affects
older men and women
risk factors of secondary osteoporosis
age post menopause genetic dietary calcium insucffieicent physical inactivity cigarette smoking
achondroplasia cause
inherited mutation inf FGF3 receptor gene
achondroplasia FGF3 receptor mutation
inhibits collagen formation from cartilage
- long bones cannot lengthen properly
signs of achondroplasia
short stature- normal head and torso
lymphadenopathy
enlarged lymph nodes e.g. when fighting infection
lymphadenopathy leads to
considerable pain
lymphoma often presents
with lymphadenopathy
primary lymphedema
individual has some form of lymphatic system failure from birth
- genetic mutation
secondary lymphedema
individuals lymphatic system has been damaged e.g. by surgery or trauma
- causes swelling of peripheral limbs
multiple sclerosis cause
autoimmune degradation of myeline
MS leads to
- loss of conduction velocity
- fatigue
- vision problems
- slurred speech
- mobility issues
- numbness and tingling sensation