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37 Cards in this Set

  • Front
  • Back
1st aortic arch
Part of maxillary artery
2nd aortic arch
Stapedial artery
Hyoid artery
3rd aortic arch
Common carotid artery
Proximal part of internal carotid artery
4th aortic arch
Left: aortic arch
Right: proximal part of right subclavian
6th aortic arch
Proximal part of pulmonary arteries
Left only: ductus arteriosus
1st cleft
External auditory meatus
2nd - 4th cleft
Temporary cervical sinuses (obliterated by proliferation of 2nd arch mesenchyme)
2nd - 4th cleft abnormality
Persistent cervical sinus (branchial cleft cyst within lateral neck)
1st arch cartilage
Meckel's cartilage:
Mandible
Malleus
Incus
Spheno-mandibular ligament
1st arch muscles
Muscles of mastication:
Temporalis
Masseter
Lateral and medial pterygoids

Mylohyoid
Anterior belly of digastric
Tensor tympani
Tensor veli palatini
1st arch nerves
CN V2 and V3
1st arch abnormality
Treacher Collins syndrome:
1st arch neural crest fails to migrate
Mandibular hypoplasia, facial abnormalities
2nd arch cartilage
Reichert's cartilage:
Stapes
Styloid process
Lesser horn of hyoid
Stylohyoid ligament
2nd arch muscles
Muscles of facial expression
Stapedius
Stylohyoid
Posterior belly of digastric
2nd arch nerves
CN VII (facial expression)
3rd arch cartilage
Greater horn of hyoid
3rd arch muscles
Stylopharyngeus
3rd arch nerves
CN IX
3rd arch abnormalities
Congenital pharyngocutaneous fistula:
Persistence of cleft and pouch leads to fistula between tonsillar area, cleft in lateral neck
4th - 6th arch cartilage
Thyroid
Cricoid
Arytenoids
Corniculate
Cuneiform
4th arch muscles
Most pharyngeal constrictors
Cricothyroid
Levator veli palatini
6th arch muscles
All intrinsic muscles of larynx except cricothyroid
4th arch nerves
CN X (superior laryngeal branch)
6th arch nerves
CNX (recurrent laryngeal branch)
5th arch cartilage
No major developmental contributions
5th arch muscles
No major developmental contributions
5th arch nerves
No major developmental contributions
1st pouch
Middle ear cavity
Eustachian tube
Mastoid air cells
2nd pouch
Epithelial lining of palatine tonsil
3rd pouch
Dorsal wings: inferior parathyroids
Ventral wings: thymus
4th pouch
Dorsal wings: superior parathyroids
Ventral wings: parafollicular (C) cells of thyroid
3rd and 4th pouch abnormalities
DiGeorge syndrome:
T cell deficiency (thymic aplasia)
Hypocalcemia (failure of inferior parathyroid development)
Endocrine neoplasia associated with branchial abnormalities
MEN (multiple endocrine neoplasia) 2A

Adrenal medulla (pheochromocytoma)
Parathyroid TUMOR (3rd, 4th pouch)
Parafollicular cell CANCER (medullary THYROID cancer derived from neural crest cells associated with 4th, 5th pharyngeal pouches)
Tongue origins
Anterior 2/3: 1st arch
Posterior 1/3: 3rd, 4th arches

from OCCIPITAL myotomes
Tongue motor innervation
CN XII
Tongue sensation
Anterior 2/3: CN V3
Posterior 1/3: mainly CN IX; CN X (posterior)
Tongue taste
Anterior 2/3: CN VII
Posterior 1/3: mainly CN IX; CN X (posterior via SOLITARY NUCLEUS)