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37 Cards in this Set

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Reflecting the origin of mammals from fish and amphibians, the term "branchial" refers to:
Gills
Forms the inferior border of the first branchial groove:
second branchial arch
Forms the superior border of the of the first pharyngeal pouch:
Mandibular process, first branchial (mandibular) arch
Forms the hyoid bone:
Second branichial arch
Contributes to the epiglottis:
Third and fourth branchial arches
Prominent contributer to the jaw:
Mandibular process, first branchial (mandibular) arch
The mesoderm of the head that contributes to the branchial arches is:
ectomesenchyme
Ectomesenchyme is unique because of its contribution from:
neural crest
Also known as the tubotympanic recess:
Frist pharyngeal pouch
Becomes the palatine tonsil and the tonsilar crypts:
Second pharyngeal pouch
Forms the inferior parathyroid gland:
Third pharyngeal pouch
Forms the superior parathyroid gland:
Fourth pharyngeal pouch
Its branchial membrane forms the tympanic membrane:
First pharyngeal pouch
The remnant of the thyroglossal duct is the:
Foramen cecum
The anterior two-thirds of the tongue is formed by the:
tongue buds
The nasal placodes invaginate to demarcate the:
medial and lateral nasal prominences
The oronasal membrane breaks down posteriorly, but remains intact anteriorly to form the:
Primitive palate
Abnormal facies including bilateral small jaw and ear anomalies, down-slanting palpebral fissures, malar hypoplasia (hollow cheeks):
Treacher Collins Syndrome
Faulty fusion of the nasal and maxillary processes:
cleft lip, most common form
Faulty fusion of the lateral palatine processes
cleft palate
Asymmetric facies with small jaw and ear anomalies on one side:
Hemifacial microsomia
Normal facies with small jaw and posterior cleft palate:
Pierre Robin sequence
Autosomal dominant disorder:
Treacher Collins syndrome
Associated with airway obstruction when sleeping supine:
Pierre Robin sequence
Look at images for qustions 25-28
Look at images for qustions 25-28
A 2 week old child presents with a malformed right ear and a small right jaw (7.1A). The parents ask if these two anomalies constitute a syndrome that requires chromosomal analysis. Your answer is:
No, because unilateral ear and jaw development are related in that they derive from the first and second branchial arches.
Abnormal facies with prominent nose, velopalatine incompetence, developmental disabilities or schizophrenia.
Shprintzen syndrome
Malformed ear and jaw, occular, vertebral and limb anomalies
goldenhar syndrome
Anomaly of the third and fourth phryngeal pouches.
hypoparathyroidism and immune deficiency
heart defect reflecting branchial arch contribution
Tetraology of fallot
Interrupted aortic arch, facial changes, hypoparathyroisism, and immune deficiency
DiGeorge anomaly
Associated with deletion of 23q11 (four answers)
Shprintzen syndrome, DiGeorge anomaly, hypoparathyroidism and immune deficiency, Tetraology of fallot
Incomplete descent of the gland
lingual thyroid
Ventral portion becomes thyroid gland
thyroid diverticulum
opening posterior to tongue
foramen cecum
secretes thyroid hormone
thyroid follicle
proximal portion eventually degenerates
thyroid diverticulum