Questão 1
Questão
Which of the following embryonic layers contribute to the formation of limbs?
Responda
-
ectoderm
-
endoderm
-
mesoderm
-
neural crest cells
Questão 2
Questão
By the ___th week of development, osteogenesis of the long bones begins.
Questão 3
Questão
Which of the following statements is true regarding limb development?
Responda
-
The upper and lower limbs develop along the same timeline
-
The upper limbs begin to develop before the lower limbs
-
The lower limbs begin to develop before the upper limbs
-
The positions of the limbs do not change as the embryo grows
Questão 4
Questão
Which of the following chromosomal aneuploidy syndromes is associated with polydactyly?
Responda
-
Monosomy X
-
Trisomy 13
-
Trisomy 18
-
Trisomy 21
Questão 5
Questão
All of the following are true regarding Rickets except?
Responda
-
It can be due to vitamin D deficiency and hypophosphatemia
-
Affected individuals have dental anomalies including hypomineralization of enamel
-
Affected individuals have abnormal appearing bones/limbs aside from just short stature
-
The only mode of inheritance is autosomal recessive
Questão 6
Questão
The limb defect known as ________, also called lobster-claw deformity or forked hand is associated with a type of congenital ectodermal dysplasia.
Responda
-
Meromelia
-
Phocomelia
-
Ectrodactyly
-
Adactyly
Questão 7
Questão
All of the following mechanisms are necessary for normal limb development except:
Questão 8
Questão
The most critical period of limb development is between _____ to _____ days; certain teratogen exposures during this time greatly increases the risk for limb defects.
Responda
-
24 to 36 (beginning of embryonic period)
-
38 to 50 (middle of embryonic period)
-
52 to 63 (end of embryonic period)
Questão 9
Questão
Most visible changes occur during what period of development?
Responda
-
10 to 14 weeks
-
20 to 28 weeks
-
3 to 8 weeks
-
15 to 20 weeks
Questão 10
Questão
Each of the following conditions can result in death during the neonatal period except:
Responda
-
Congenital heart defects
-
Hypertrichosis
-
Ichthyosis
-
Renal agenesis
Questão 11
Questão
All of the following are congenital heart defects that will result in cyanosis except:
Questão 12
Questão
All of the following syndromes involve abnormal tooth development. Which is autosomal dominant?
Questão 13
Questão
Which of the following describes an abnormality of the digits commonly associated with skeletal dysplasias (especially achondroplasia)?
Responda
-
Adactyly
-
Brachydactyly
-
Polydactyly
-
Syndactyly
Questão 14
Questão
Which type of skeletal dysplasia is also known as "brittle bone disease"?
Questão 15
Questão
Which of the following is a risk factor for limb anomalies?
Responda
-
Uncontrolled maternal diabetes
-
Thalidomide exposure during embryonic period
-
Chromosomal aneuploidy
-
All of the above are risk factors for limb anomalies
Questão 16
Questão
Limb reduction defects range in severity depending on what embryonic age there was disruption of limb formation. Amelia is the most severe.
Questão 17
Questão
Most cases of syndactyly are osseous (involving bone) and include functional appendages/digits with bones, nerve and musculature.
Questão 18
Questão
The recurrence risk for congenital hip dislocation/developmental hip dysplasia is less than 1%.
Questão 19
Questão
Minor defects of limbs are relatively common and can be corrected surgically.
Questão 20
Questão
Your skin has both thick and thin components which both contain sweat glands, hair follicles, arrector muscles of hairs, and sebaceous glands.
Questão 21
Questão
The secretory parts of the eccrine and apocrine sweat glands open into the skin and begin to function shortly after birth.
Questão 22
Questão
Hair follicles and glands are derived from the epidermis and grow down into the dermis.
Questão 23
Questão
Males and females have lactiferous ducts as part of the mammary gland.
Questão 24
Questão
Delayed tooth eruption can be a sign of hypothyroidism.
Questão 25
Questão
Babies that are born very prematurely (i.e. before 26 weeks) are not at increased risk for neurological or developmental problems, however they may have fingernails that have not yet reached the tips of their digits and may have cardiovascular complications, such as patent ductus arteriosis.
Questão 26
Questão
Explain the concept of incomplete penetrance[blank_start].[blank_end]
Questão 27
Questão
The [blank_start]___[blank_end] is superficial epithelial tissue derived from surface embryonic ectoderm and the [blank_start]___[blank_end] is a deep layer of dense, irregularly arranged connective tissue derived from mesenchyme.
Questão 28
Questão
[blank_start]___[blank_end] is a fetal adaptation made from exfoliated peridermal cells and secretions from sebaceous glands. [blank_start]___[blank_end] is the fine hairs that cover the surface of fetal skin.
Questão 29
Questão
Occulocutaneous albinism is an autosomal [blank_start]___[blank_end] condition. There is a lack of pigment [blank_start]___[blank_end] due to an underlying defect in tyrosinase production. Two clinical features of this syndrome are [blank_start]___[blank_end] and [blank_start]___[blank_end].
Responda
-
recessive
-
melanin
-
light/white skin
-
poor eyesight
Questão 30
Questão
The hardest tissue in the human body is [blank_start]___[blank_end].
Questão 31
Questão
[blank_start]___[blank_end] is a condition characterized by absence of the pectoralis major muscle that results in hypoplastic fused ribs, unilateral absence of breast, nipple, areola, hemivertebrae, syndactyly, brachydactyly, and in some cases dextrocardia.
Questão 32
Questão
Name [blank_start]the[blank_end] 3 body cavities that make up the Intraembronic Coelom during the 2nd month:
Questão 33
Questão
Two "fruity" signs that are ultrasound findings which may be associated with underlying defects of the nervous system are the [blank_start]____[blank_end] and [blank_start]____[blank_end] signs. Their presence may be associated with other anomalies including congenital clubfoot and clenched fists.
Questão 34
Questão
A [blank_start]____[blank_end] is a type of lymphatic angioma that may be associated with chromosomal aneuploidy and poor pregnancy outcome.
Questão 35
Questão
For each of the following teratogenic substances, list a potential consequence/fetal anomaly.
Primary rubella infection[blank_start],[blank_end] tetracycline exposure[blank_start],[blank_end] high maternal blood sugar levels[blank_start],[blank_end] thalidomide[blank_start],[blank_end] primary zika infection[blank_start],[blank_end] carbamazepin[blank_start]e[blank_end]
Responda
-
cataracts
-
stained teeth
-
congental heart defects
-
limb defects
-
microcephaly
-
neural tube defects
Questão 36
Questão
A type of lower limb defect known technically as congenital vertical talus is also a feature of trisomy 18[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 37
Questão
A type of upper limb defect caused by a defect of the digital rays to form a central digit or digits[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 38
Questão
The most common musculoskeletal deformation, also associated with some neural tube defects[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 39
Questão
A condition involving a hemifacial hemangioma (port-wine stain) and possibly an underlying angioma in the meninges of the brain that causes seizures[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 40
Questão
Enlargement of male breast tissue, often associated with Klinefelter syndrome[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 41
Questão
The karyotype for Klinefelter syndrome[blank_start].[blank_end]
Questão 42
Questão
The term that describes supernumerary nipples[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber syndrome
-
polymastia
-
rocker bottom foot
-
pyelectasis
Questão 43
Questão
This soft marker is characterized by a dilated renal pelvis easily detectable by prenatal ultrasound. It is seen in about 25% of fetuses that have Down syndrome[blank_start].[blank_end]
Responda
-
polythelia
-
congenital clubfoot
-
gynecomastia
-
ectrodactyly
-
Sturge-weber sydrome
-
polymastia
-
rocker bottom foot
-
pyelectasis