Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

SF2 - Test 1 > 1 - Zill - Branchial Arches > Flashcards

1 - Zill - Branchial Arches Flashcards

1
Q

Origin of Pharynx

Location

Sensation

A

Endoderm

Region behind Oral and Nasal Cavities

Vague sensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Origin of Nasal and Oral Cavities

Sensation

A

Derived from Ectoderm

Precise sensation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Structures Found in Branchial Arches (4)

A

Cartilages

Nerve

Muscles

Arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Arches, Grooves, Pouches, Membranes

A

Arches - Lumps

Grooves (Clefts) - Ectodermal clefts between adjacent arches

Pouches - Endodermal out pocketing from rostral foregun between adjacent arches

Membranes - Site of contact of Groove (ectoderm) and Pouch (endoderm)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Branchial Arch

External / Internal Lining

Core

A

External - Ectoderm

Internal - Endoderm

Core - Mesenchym

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

First Arch

A

Face, Maxillary, Mandibular Process

Surround stomodeum (primitive mouth)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Stomodeum

Formed by?

Forms?

Contacts ____ at _____.

Beyond that is ____, formed by _____.

A

Formed by Ectoderm

Forms oral and nasal cavity

Contacts Endoderm at Oropharyngeal Membrane

Beyond that is pharynx, formed by Endoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Boundary between oral/nasal cavity and pharynx?

A

Oropharyngeal Membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Palatoglossal Arch

A

Site of oropharyngeal membrane, boundary of oral cavity and pharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Arch / Nerve: First ( V )

Skeletal

Ligament

Muscle

“Mandibular Arch”

A

Skeletal: Malleus, Incus

Ligaments: Ant. Ligament of Malleus, Sphenomandibular Ligament

Muscles: Muscles of Mastication, Tensor Tympani, Tensor Palati, Mylohyoid, Ant. Belly of Digastric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Arch / Nerve: Second ( VII )

Skeletal

Ligament

Muscle

“Hyoid Arch”

A

Skeletal: Stapes, Styloid Process, Hyoid Bone - lesser horn, upper hald of body

Ligament: Stylohyoid Ligament

Muscle: Muscles of Facial Expression, Stapedius, Stylohyoid, Post. Belly of Digastric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Arch / Nerve: Third ( IX )

Skeletal

Ligament

Muscle

A

Skeletal: Hyoid Bone - greater horn, lower half of body

Ligament: N/A

Muscle: Stylopharyngeus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Arch / Nerve: Fourth ( X )

Skeletal

Ligament

Muscle

A

Skeletal: Cartilages of Larynx

Ligaments: N/A

Muscles: All Larynx, All Pharynx (except Stylopharyngeus), All Soft Palate (except Tensor Palati)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Arch / Nerve: Sixth ( XI )

Skeletal

Ligament

Muscle

A

Skeletal: N/A

Ligament: N/A

Muscles: Sternocleidomastoid, Trapezius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Origin of External Auditory Meatus

A

First Branchial Groove (Cleft)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Origin of Tympanic Membrane

A

First Branchial Membrane

17
Q

Which arch does NOT form structures in humans?

A

5

18
Q

Branchial Arch Nerves:

First

Second

Third

Fourth

Sixth

A

First - Trigeminal - V

Second - Facial - VII

Third - Glossopharyngeal - IX

Fourth - Vagus - X

Caudal Sixth - Accessory - XI

19
Q

Branchial Pouch: First

Forms

Clinical

A

Forms: Auditory Tube, Tympanic Cavity

Clinical: First Branchial Cleft (Groove) Cyst - Tract linked to external auditory meatus

20
Q

Branchial Pouch: Second

Forms

Clinical

A

Forms: Lining (crypts) of Palatine Tonsils

Clinical: Second Branchial “Cleft” (groove) cyst - Tract linked to tonsillar fossa (palatine tonsils)

21
Q

Branchial Pouch: Third

Forms

Clinical

Unique?

A

Forms: Inferior Parathyroid Gland, Thymus

Clinical: Third Branchial “Cleft” (groove) Cyst - tract at throhyoid membran or piriform recess

Migrate caudal to pouch 4

22
Q

Branchial Pouch: Fourth

Forms

Clinical

A

Forms: Superior Parathyroid Gland, C-cells of Thyroid

Clinical: N/A

23
Q

Branchial Pouch: Sixth

Forms

Clinical

A

Forms: N/A

Clinical: N/A

24
Q

Location of cysts and fistuli in lateral neck?

A

Anterior to Sternocleidomastoid Muscle

25
Q

Origin of Outpocketings of Pharynx

A

Endoderm

26
Q

Meeting of First Groove (what is structure?) and First Pouch (what is structure?)

A

Meeting - Tympanic Membrane (First Membrane)

Structures = Ext. Aud. Meatus (1st Groove), Auditory Tube & Tympanic Cavity (1st Pouch)

27
Q

Cervical Sinus

A

Type of branchial groove that develops in longer depression, normally obliterated, but can persist

28
Q

Branchial Sinus

Branchial Fistula

A

Blind pouch from Pharynx

- - -

Chanel, connecting Pharynx and skin of neck, usually passes Anterior to Sternocleidomastoid between Int. and Ext. Carotid A.

29
Q

Development of Thyroid

A
  1. Thryoid starts as Median Endodermal thickening on floor of pharynx (Tongue)
  2. Elongates to form thyroid diverticulum, descens ant. to hyoid bone and larynx
  3. Throglossal duct connects diverticulum to Foramen cecum
30
Q

Lingual Thyroid

A

Thyroid gland in tongue

31
Q

Thyroglossal Duct Remnants

A

Can form throid tissue (cysts) along path of migration (midline, ant. to hyoid, larynx)

32
Q

Pyramidal Lobe

A

50% of people, attached to hyoid by fibrous strand, no clinical problems

33
Q
A

SF2 - Test 1 (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions