Branchial Arch derivative Flashcards Preview

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Flashcards in Branchial Arch derivative Deck (30):
1

First Arch name

Mandibular Arch

2

First arch nerve

Trigeminal nerve (mandibular branch)

3

First arch muscles

Muscles of mastication (masseter, temporalis, medial and lateral pterygoids), mylohyoid, ant. belly of digastric, tensor veli palatani, tensor tympani

4

First arch skeletal

head of malleus
upper part of incus
meckel's cartilage

5

First arch artery

maxillary artery
external carotid artery

6

Second arch name

hyoid arch

7

second arch nerve

facial nerve

8

second arch muscles

facial expression
stapedius
stylohyoid
posterior belly of digastric

9

skeleton of second arch

handle of malleus
lower part of incus
stapes
styloid process
lesser cornu/upper body hyoid

10

artery of second arch

stapedial artery

11

third arch nerve

glossopharyngeal nerve CN IX

12

third arch muscle

stylopharyngeus

13

third arch skeleton

greater cornu lower body of hyoid

14

third arch artery

proximal part of common carotid
distal part of internal carotid

15

fourth arch nerve

Vagus Nerve

16

fourth arch muscles

Cricothyroid
Salpingopharyngeus
Palatopharyngeys
superior, middle, inferior vegetarian
Levator veli palatani
palatoglossus

17

fourth arch skeletal

laryngeal cartilages (thyroid cartilage)

18

fourth arch artery

aortic arch
R. subclavian arch

19

5/6 arch nerve

cranial root of spinal accessory nerve via RLN

20

5/6 arch muscle

everything for fourth arch except cricothyroid
all intrinsic muscles of larynx

21

5/6 arch skeletal

laryngeal cartilages except thyroid cartilage

22

5/6 arch arteries

ductus arteriosus
proximal pulmonary artery

23

first pouch

ear stuff:
eustachian tube
middle ear cavity
mastoid antrum

24

second pouch

crypts of palatine fossa

25

third pouch

inferior parathyroid glands
thymus

26

fourth pouch

superior parathyroid glands
C cells of thyroid glands

27

First groove

External acoustic meatus

28

2-4 groove

common cervical sinus, typically obliterates. Can turn into branchial sinus which is pathology

29

first membrane

tympanic membrane

30

thyroid development pathology

descends through tongue into neck
starts at foramen cecum
can create:
persisting thyroglossal duct
pyramidal lobes
persistant thyroglossal ducts
thyroglossal cysts/sinuses
ectopic thyroid glands