

|
Down syndrome symptoms vary from person to person and can range from mild to severe. However, children with Down syndrome have a widely recognized appearance.
|
|
|
While Down syndrome is a chromosomal disorder, a baby is usually identified at birth through observation of a set of common physical characteristics. Babies with Down syndrome tend to be overly quiet; less responsive; with weak, floppy muscles. Fu...
|
|
|
While Down syndrome is a chromosomal disorder, a baby is usually identified at birth through observation of a set of common physical characteristics. Not all affected babies will exhibit all of the symptoms discussed. There is a large variability ...
|
|
|
While Down syndrome is a chromosomal disorder, a baby is usually identified at birth through observation of a set of common physical characteristics. It is important to remember that not all children with Down syndrome will exhibit all of the feat...
|
|
|
While Down syndrome is a chromosomal disorder, a baby is usually identified at birth through observation of a set of common physical characteristics. Not all affected babies will exhibit all of the symptoms discussed. There is a large variability ...
|
|
While Down syndrome is a chromosomal disorder, a baby is usually identified at birth through observation of a set of common physical characteristics. Babies with Down syndrome tend to be overly quiet, less responsive, with weak, floppy muscles. Fu...
|
|
Mental retardation is a condition diagnosed before age 18 that includes below-average general intellectual function, and a lack of the skills necessary for daily living.
|
|
Mental retardation is a developmental disability that first appears in children under the age of 18. It is defined as an intellectual functioning level (as measured by standard tests for intelligence quotient) that is well below average and signif...
|
|
Mental retardation is a developmental disability that first appears in children under the age of 18. It is defined as an intellectual functioning level (as measured by standard tests for intelligence quotient) that is well below average and signif...
|
|
|
Mental retardation (MR) is a developmental disability that first appears in children under the age of 18. It is defined as a level of intellectual functioning (as measured by standard intelligence tests ) that is well below average and results in ...
|
|
|
Below-average intellectual abilities that are present before the age of 18 and interfere with developmental processes and with the ability to function normally in daily life (adaptive behavior). The term mental retardation is commonly used to refe...
|
|
|
(Also called sociocultural or cultural-familial retardation) Mild mental retardation attributed to environmental causes and generally involving some degree of psychosocial disadvantage. The majority of persons suffering from mental retardation fal...
|
|
Mental retardation (MR) is a developmental disability that first appears in children under the age of 18. It is defined as a level of intellectual functioning (as measured by standard intelligence tests) that is well below average and results in s...
|
|
A developmental delay is any significant lag in a child's physical, cognitive, behavioral, emotional, or social development, in comparison with norms.
|
|
Any delay in a child's physical, cognitive, behavioral, emotional, or social development, due to any number of reasons. Developmental delay refers to any significant retardation in a child's physical, cognitive, behavioral, emotional, or social de...
|
![]() |
A simian crease is a single line that runs across the palm of the hand. People normally have three creases in their palms. The term "simian crease" is not used much anymore since it tends to have a negative meaning (it refers to monkey or ape. The...
|
![]() |
Hypotonia is decreased muscle tone.
|
|
|
Hypotonia means "low tone," and refers to a physiological state in which a muscle has decreased tone, or tension. A muscle's tone is a measure of its ability to resist passive elongation or stretching.
|
|
|
Hypotonia, or severely decreased muscle tone, is seen primarily in children. Low-toned muscles contract very slowly in response to a stimulus and cannot maintain a contraction for as long as a normal muscle. Hypotonia is a symptom that can be caus...
|
![]() |
Delayed growth is poor or abnormally slow height or weight gains in a child younger than age 5. See also: Short stature
|
![]() |
Separated sutures are abnormally wide spaces in the bony joints of the skull in an infant. See also: Sutures - ridged
|
![]() |
Microcephaly is a condition in which a person's head is significantly smaller than normal for their age and sex, based on standardized charts. Head size is measured as the distance around the top of the head.
|
|
|
Microcephaly is a neurological disorder where the distance around the largest portion of the head (the circumference) is less than should normally be the case in an infant or a child. The condition can be evident at birth, or can develop within th...
|
|
A birth defect characterized by an abnormally small head, a receding forehead, and large ears and nose. The condition often signals an abnormally small brain and the presence of other disorders such as cerebral palsy. Microcephaly can be caused by...
|


