6 Hereditary, Congenital and Childhood Diseases (Unit 2) Flashcards
congenital
the condition is present at birth
hereditary
the condition is capable of being passed from parent to offspring through genes
list the Autosomal Dominant Disorders
Huntington's Disease Polydactyly Achondroplasia Marfan Synrome Familial hypercholesterolemia
Polydactyly
Person has more than 5 fingers/toes per hand/foot
Achondroplasia
The common cause for dwarfism. Shorter stature average adult:
→Male 52 inch.
→Female 48 inch.
Marfan Synrome
Affects body’s connective tissue.
Results in heart defects, heart valve defects, aorta defects and possible earth death.
Affects lungs, eyes, spinal cord, skeletal, part of mouth
Familial hypercholesterolemia
“High cholesterol caused by genes”. Defect makes body unable to remove LDL (low density lipoprotein aka fat) resulting in early atherosclerosis.
Get tested in 20s b/c if you wait until older, plaque build-up is irreversible/you’re @higher risk for heart disease.
Huntington’s Disease
Causes the breakdown/degeneration of nerve cells in the brain
list the Autosomal Recessive Disorders
Cystic Fibrosis Hemochromatosis Phenylketonuria (PKU) Galactosemia Sickle cell anemia Tay-Sachs Albinism
Cystic fibrosis
Hereditary condition affecting the exocrine glands of the lugs and pancreas causing excessive mucous production
(Risk factors, Signs/Symps., Diagnosis, Treatment, 9/28 pg. 5)
Phenylketonuria (PKU)
Increases the level of phenylalanine (which is in artificially sugary stuff like soda), which if left untreated, leads to intellectual disability, etc.
Galactosemia
Unable to fully breakdown galactose (a simple sugar) which is half of lactose (other half’s glucose).
If infant is given milk, galactose will build up resulting in brain damage, liver damage, kidney and eye damage. Can’t tolerate breast milk of formula
Sickle cell anemia
Body makes sickle (shriveled) shaped cells.
They’re sticky, stiff, clumped together and block blood flow causing pain and organ damage and raises person’s chance of infection.
Tay-Sachs
Progressively destroys nerve cells in brain and spinal cord.
Disorder’s more obvious at 3-6 month age though their lack of motor skills. They’ll experience seizures, vision/hear loss, intellectual disability, paralysis.
Mostly affects Eastern European Jews.
Albinism
Person has little to no pigment in eyes, skin or hair. Pigment’s called melanin. Affects 1 in 17 thousand in US.