Arch Info

Question 1

name for arch 1?

Answer 1

Mandibular

Question 2

name for arch 2?

Answer 2

hyoid

Question 3

name for arch 3?

Answer 3

third

Question 4

name for arch 4?

Answer 4

fourth

Question 5

name for arch 6?

Answer 5

sixth

Question 6

embryonic cartilage from arch 1?

Answer 6

quadrate and meckel’s

Question 7

embryonic cartilage from arch 2?

Answer 7

Reichert’s

Question 8

cartilage/bone derivatives from arch 1?

Answer 8

meckel's cartilage
incus
malleus
anterior ligament of malleus
mandible
maxilla
spine of sphenoid
sphenomandibular ligament
genial tubercle of mandible

Question 9

cartilage/bone derivatives from arch 2?

Answer 9

stapes
styloid process of temporal bone
stylohyoid ligament
lesser horn of hyoid
upper part of hyoid bone body

Question 10

cartilage/bone derivatives from arch 3?

Answer 10

greater horn of hyoid

lower part of hyoid bone body

Question 11

cartilage/bone derivatives from arch 4?

Answer 11

thyroid cartilage
cricoid cartilage
arytenoid cartilage
corniculate cartilage
cunieform cartilage

Question 12

cartilage/bone derivatives from arch 6?s

Answer 12

**SAME AS 4
thyroid cartilage
cricoid cartilage
arytenoid cartilage
corniculate cartilage
cunieform cartilage

Question 13

what cartilage is the framework for the mandible?

Answer 13

Meckel’s

Question 14

Muscles of arch 1?

Answer 14

tensor tympani
muscles of mastication
mylohyiod
anterior belly of digastirc
tensor veli palatini
temporal and masseter muscle

Question 15

Muscles of arch 2?

Answer 15

stapedius
stylohyoid
facial muscles
buccinator 
patysma
posterior belly of digastirc
occipital
auricular

Question 16

Muscles of arch 3?

Answer 16

stylopharyngeus

Question 17

Muscles of arch 4?

Answer 17

pharyngeal musculature
extrinsic laryngeal muscles
levator veli palatini (of soft palate)
crycothyroid

Question 18

Muscles of arch 6?

Answer 18

intrinsic laryngeal muscles (NOT cricothyroid muscle)

Question 19

Nerves to arch 1?

Answer 19

Trigeminal (CN 5)

Mandibular division

Question 20

Nerves to arch 2?

Answer 20

Facial (CN 7)

Question 21

Nerves to arch 3?

Answer 21

glossopharyngeal (CN 9)

Question 22

Nerves to arch 4?

Answer 22

vagus (CN 10)

pharyngeal branch

Question 23

Nerves to arch 6?

Answer 23

Vagus (CN 10)

recurrent laryngeal branch

Question 24

what branches fuse?

Answer 24

4 and 6

*can basically be thought of as same thing

Question 25

what arch disappears immediately? What happens if it doesn’t?

Answer 25

arch 5

*becomes a vestige

Question 26

define vestige

Answer 26

a part or organ of an organism that has become reduced or function-less in the course of evolution

Question 27

blood supply to arch 1?

Answer 27

first aortic arch artery
maxillary artery (terminal branches)

Question 28

blood supply to arch 2?

Answer 28

stapedial artery (embryonic)
corticotympanic (adult)

Question 29

blood supply to arch 3?

Answer 29

• common carotid and internal carotid arteries

* first part of internal carotid artery

Question 30

blood supply to arch 4?

Answer 30

• Right= proximal part of subclavian artery

* Left= part of aorta arch; between left common carotid and left subclavian arteries

Question 31

blood supply to arch 6?

*What does it become?

Answer 31

• Part of left or right pulmonary artery (part between the pulmonary trunk and dorsal aorta)
• becomes ductus arteriosus on left disappears on right

Question 32

cornu means?

Answer 32

horn

*ex: lesser and greater horns of of hyoid

Question 33

What is tracher collins?

What are 3 affecst of treacher collins?

Answer 33

a first arch syndrome genetic disorder
when neural crest cells do not migrate into Arch 1
*mandibular hypoplasia
*conductive hearing loss
*facial meelformation

Question 34

Facial muscles grow from what brachial arch?

Answer 34

2nd

*cover the face, scalp, and area posterior to ear

Question 35

the 3rd bracnhial arch vessel becomes? supplies blood where?

Answer 35

the common carotid in the 5th week and supples the face by means of the internal carotid and stapedial arteries