Arch Info Flashcards
name for arch 1?
Mandibular
name for arch 2?
hyoid
name for arch 3?
third
name for arch 4?
fourth
name for arch 6?
sixth
embryonic cartilage from arch 1?
quadrate and meckel’s
embryonic cartilage from arch 2?
Reichert’s
cartilage/bone derivatives from arch 1?
meckel's cartilage incus malleus anterior ligament of malleus mandible maxilla spine of sphenoid sphenomandibular ligament genial tubercle of mandible
cartilage/bone derivatives from arch 2?
stapes styloid process of temporal bone stylohyoid ligament lesser horn of hyoid upper part of hyoid bone body
cartilage/bone derivatives from arch 3?
greater horn of hyoid
lower part of hyoid bone body
cartilage/bone derivatives from arch 4?
thyroid cartilage cricoid cartilage arytenoid cartilage corniculate cartilage cunieform cartilage
cartilage/bone derivatives from arch 6?s
**SAME AS 4 thyroid cartilage cricoid cartilage arytenoid cartilage corniculate cartilage cunieform cartilage
what cartilage is the framework for the mandible?
Meckel’s
Muscles of arch 1?
tensor tympani muscles of mastication mylohyiod anterior belly of digastirc tensor veli palatini temporal and masseter muscle
Muscles of arch 2?
stapedius stylohyoid facial muscles buccinator patysma posterior belly of digastirc occipital auricular
Muscles of arch 3?
stylopharyngeus
Muscles of arch 4?
pharyngeal musculature
extrinsic laryngeal muscles
levator veli palatini (of soft palate)
crycothyroid
Muscles of arch 6?
intrinsic laryngeal muscles (NOT cricothyroid muscle)
Nerves to arch 1?
Trigeminal (CN 5)
Mandibular division
Nerves to arch 2?
Facial (CN 7)
Nerves to arch 3?
glossopharyngeal (CN 9)
Nerves to arch 4?
vagus (CN 10)
pharyngeal branch
Nerves to arch 6?
Vagus (CN 10)
recurrent laryngeal branch
what branches fuse?
4 and 6
*can basically be thought of as same thing
what arch disappears immediately? What happens if it doesn’t?
arch 5
*becomes a vestige
define vestige
a part or organ of an organism that has become reduced or function-less in the course of evolution
blood supply to arch 1?
first aortic arch artery maxillary artery (terminal branches)
blood supply to arch 2?
stapedial artery (embryonic) corticotympanic (adult)
blood supply to arch 3?
- common carotid and internal carotid arteries
* first part of internal carotid artery
blood supply to arch 4?
- Right= proximal part of subclavian artery
* Left= part of aorta arch; between left common carotid and left subclavian arteries
blood supply to arch 6?
*What does it become?
- Part of left or right pulmonary artery (part between the pulmonary trunk and dorsal aorta)
- becomes ductus arteriosus on left disappears on right
cornu means?
horn
*ex: lesser and greater horns of of hyoid
What is tracher collins?
What are 3 affecst of treacher collins?
a first arch syndrome genetic disorder when neural crest cells do not migrate into Arch 1 *mandibular hypoplasia *conductive hearing loss *facial meelformation
Facial muscles grow from what brachial arch?
2nd
*cover the face, scalp, and area posterior to ear
the 3rd bracnhial arch vessel becomes? supplies blood where?
the common carotid in the 5th week and supples the face by means of the internal carotid and stapedial arteries
