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40 Cards in this Set

  • Front
  • Back
Branchial clefts are derived from
ectoderm
"CAP" clefts-Arches-Pouches = ecto meso and endo
Branchial arches are derived from (2)
mesoderm and neural crests
Branchial pouches are derived from
endoderm
First Pharyngeal Arch
Nerve
Trigeminal Mandibular V3
First Pharyngeal Arch
Muscles
4 muscles of mastication (masseter, temporalis, lateral and medial pterygoid)
anterior belly of digastric
mylohyoid
tensor tympani
tensor veli palatini
First Pharyngeal Arch
Skeletal elements
Mandibular and Maxillary process
Malleus
Incus
Treacher Collins syndrome and Robin sequence have this symptoms
mandibular hyperplasia (first pharyngeal arch) - both involve neural crest cells
Pharyngeal Arch 2
Nerve
Facial CN VII
Pharyngeal Arch 2
Muscles
Muscles of Facial Expression (orbicularis oculi and oris, buccinator etc.)
posterior belly of digastric
stylohyoid, stapedius
Pharyngeal Arch 2
Skeletal elements
Hyoid (inferior part)
styloid process
stapes
(Reichert's cartilage)
Pharyngeal Arch 3
Nerve
Glossopharyngeal (CN IX)
Pharyngeal Arch 3
Muscles
stylopharyngeus
Pharyngeal Arch 3
skeletal elements
Hyoid (superior part)
Pharyngeal Arch 4
Nerve
Vagus (X)
superior laryngeal branch
pharyngeal branches
Pharyngeal Arch 4
Muscles
Cricothyroid
levator veli palatini
pharyngeal constrictors
uvular
salpingopharyngeus
palatoglossus
palatopharyngeus
Pharyngeal Arch 4
Skeletal elements
Thyroid cartilage
Pharyngeal Arch 6
Nerve
Vagus (CN X)
recurrent laryngeal
Pharyngeal Arch 6
Muscles
all intrinsic muscles of larynx except cricothyroid
lateral and post. cricoarytenoid
transverse and oblique arytenoid
thyroarytenoid (vocalis)
Pharyngeal Arch 6
skeletal elements
cricoid
arytenoid
corniculate
cuneiform
1st Pharyngeal Cleft derivatives
external auditory meatus
2nd-4th Pharyngeal Cleft derivative
temporary cervical sinuses
Persistant cervical sinus (Pharyngeal Clefts 2-4) can lead to a
branchial cyst in the neck
1st Pharyngeal Pouch
endoderm-lined structures of ear
middle ear cavity
eustacian tube
mastoid air cells
2nd Pharyngeal Pouch
epithelial lining of palatine tonsil
3rd Pharyngeal Pouch
inferior parathyroids and thymus
4th Pharyngeal Pouch
superior parathyroids and thymus
ultimobranchial body
The anterior 2/3rds of tongue form from
1st branchial arch (taste VII sensation V3)
The posterior 1/3rd of tongue forms from
3rd and 4th branchial arches (sensation/taste IX)
Motor innervation of the tongue
CN XII
Taste in tongue involves CN
VII, IX, and X (solitary nucleus)
nerve that lies in the tonsillar fossa
glossopharyngeal CN IX
the constrictor muscles of the pharynx and the muscles of the soft palate are innervated by the
vagus nerve
astrocytes are derived from
neural tube
oligodendrocytes are derived from
neural tube
ependymal cells are derived from
neural tube
psuedounipolar cells are derived from
neural crest
schwann cells are derived from
neural crest
chromaffin cells are derived from
neural crest
odontoblasts and melanocytes are derived from
neural crest
leptomeninges are derived from
neural crest