Arches Flashcards
(16 cards)
1st arch muscles
Mastication
- Temporal
- Masseter
- medial pterygoid
- lateral pterygoid
4 others
- mylohyoid
- anterior belly of the digastric
- tensor palatine
- tensor tympani
1st arch nerve
Trigeminal (maxillary [CN V2] and mandibular [CN V3] divisions)
1st arch skeleton
Premaxilla Maxilla Part of the temporal Meckel's cartilage - mandible - malleus - incus - anterior ligament of the malleus Sphenomadibular ligament
1st pharyngeal pouch
Tympanic cavity
Auditory (eustachian) tube
2nd arch nerve
Facial (CN 7)
2nd arch muscles
Muscles of facial expression
- buccinator
- auricularis
- frontalis
- platysma
- orbicularis oris
- orbicularis oculi
3 others
- posterior belly of digastric
- stylohyoid
- stapedius
2nd arch skeleton
Stapes
Styloid process
Stylohyoid ligament
Lesser horn and upper portion of the body of the hyoid bone
2nd pharyngeal pouch
Palatine tonsils
Tonsillar fossa
3rd arch nerve
Glossopharyngeal
3rd arch muscles
Stylopharyngeus
3rd arch skeleton
Greater horn and lower portion of the hyoid bone
3rd pharyngeal pouch
Inferior parathyroid gland
Thymus
4-6 arch nerve
Vagus
- superior laryngeal branch (nerve to 4th arch)
- recurrent laryngeal branch (nerve to 6th arch)
4-6 arch muscle
4th - cricothyroid - levator palatine - constrictors of the pharynx 6th - intrinsic muscles of the larynx
4-6 arch skeleton
Laryngeal cartilages
- thyroid
- cricoid
- arytenoid
- corniculate
- cuneiform
4th pharyngeal pouch
Superior parathyroid gland
Ultimobody - parafollicular [C] cells of the thyroid gland (calcitonin producing)
