RSL - Repro - Aortic arch / branchial arch Flashcards Preview

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Flashcards in RSL - Repro - Aortic arch / branchial arch Deck (33):
1

Aortic Arch Derivatives: 1st

Maxillary artery (1=max)

2

Aortic Arch Derivatives: 2nd

Stapedial artery and hyoid artery (2 = S)

3

Aortic Arch Derivatives: 3rd

Common carotid artery and proximal part of internal corototid artery (C is third letter)

4

Aortic Arch Derivatives: 4th

Left: Aortic arch Right: proximal part of right subclavian (4 = 4 limbs)

5

Aortic Arch Derivatives: 6th

Proximal part of pulmonary arteries Left: ductus arteriosus

6

Origin / location: Branchial cleft

Ectoderm (outside)

7

Origin / location: branchial arch

Medoserm (middle)

8

Origin / location: Branchial pouch

Endoderm (inner)

9

Branchial cleft derivatives: 1st

External auditory meatus

10

Branchial cleft derivatives: 2nd

temporary cervical sinus, obliterated by 2nd arch mesochyme

11

Branchial cleft derivatives: 3rd

temporary cervical sinus, obliterated by 2nd arch mesochyme

12

Branchial cleft derivatives: 4th

temporary cervical sinus, obliterated by 2nd arch mesochyme

13

Branchial Arch Derivatives:1st: (muscles)

Muscles of mastication, anterior belly of the digastric, mylohyoid, tensor tympani, tensor veli palatini

14

Branchial Arch Derivatives:2nd: (muscles)

Muscles of facial expression, buccinator, platysma, stapedius, stylohyoid, posterior belly of the digastric, auricular[10]

15

Branchial Arch Derivatives:3rd: (muscles)

Stylopharyngeus

16

Branchial Arch Derivatives:4th: (muscles)

Cricothyroid muscle, all intrinsic muscles of soft palate (including levator veli palatini) except tensor veli palatini

17

Branchial Arch Derivatives:6th: (muscles)

All intrinsic muscles of larynx except the cricothyroid muscle

18

Branchial Arch Derivatives:1st: Skeletal contributions

Premaxilla, maxilla, mandible (only as a model for mandible not actual formation of mandible), zygomatic bone, part of the temporal bone, the incus, and the malleus of the middle ear, also Meckel's cartilage and the sphenomandibular ligament.

19

Branchial Arch Derivatives:2nd: Skeletal contributions

Stapes, temporal styloid process, hyoid (lesser horn and upper part of body), stylohyoid ligament, Reichert's cartilage

20

Branchial Arch Derivatives:3rd: Skeletal contributions

Hyoid (greater horn and lower part of body), thymus, inferior parathyroids

21

Branchial Arch Derivatives:4th: Skeletal contributions

Thyroid cartilage, superior parathyroids, epiglottic cartilage

22

Branchial Arch Derivatives:6th: Skeletal contributions

Cricoid cartilage, arytenoid cartilages, corniculate cartilage, cuneiform cartilages

23

Branchial Arch Derivatives:1st: Nerve

Trigeminal nerve (part of V2 and V3)

24

Branchial Arch Derivatives:2nd: Nerve

Facial nerve (VII)

25

Branchial Arch Derivatives:3rd: Nerve

Glossopharyngeal nerve (IX)

26

Branchial Arch Derivatives:4th: Nerve

Vagus nerve (X), superior laryngeal nerve

27

Branchial Arch Derivatives:6th: Nerve

Vagus nerve (X), recurrent laryngeal nerve

28

Branchial Puch derivatives: 1st:

Middle ear cavity, eustachian tube, mastoid air cells

29

Branchial Puch derivatives: 2nd

Epithelial lining of palatine tonisls

30

Branchial Puch derivatives: 3rd

Dorsal wings: Inferior parathyroids

Ventral wings: Thymus

31

Branchial Pouch derivatives: 4th

Dorsal wings: Superior parathyroids

32

Cleft lip

Failure of maxillary and medial nasal prominance fusion

33

Cleft palate

  • Failure of two lateral palatine processes
  • failure of lateral palatine process with nasal septum or medial palatine process