Pharyngeal Arches, Clefts, and Pouches Flashcards
1
Q
I. Mandibular Arch Structures
A
- Meckel’s Cartilage
- Anterior Ligament of Malleus
- Incus
- Malleus
- Sphenomandibular Ligament
- Maxillary Process
2
Q
I. Mandibular Arch Muscles
A
- Masseter
- Temporalis
- Lateral Pterygoid
- Medial Pterygoid
- Anterior belly of Digastric
- Tensor Tympani
- Tensor Palatini
- Mylohyoid
3
Q
I. Mandibular Arch Nerves
A
- Trigeminal Nerve (V)
2. Chorda Tympani (Pretremetic Branch of Facial Nerve)
4
Q
II. Reichert’s/Hyoid Arch Structures
A
- Styloid Process
- Stylohyoid Ligament
- Stapes
- Lesser Cornu/Horn
- Upper part of Hyoid
5
Q
II. Reichert’s/Hyoid Arch Muscles
A
- Stapedius
- Muscles of Facial Expression
- Posterior belly of Digastric
- Stylohyoid
6
Q
II. Reichert’s/Hyoid Arch Nerves
A
Facial Nerve (VII)
7
Q
III. Structures
A
- Lower part of Hyoid
2. Greater Cornu/Horn
8
Q
III. Muscles
A
- Stylopharyngeal
9
Q
III. Nerves
A
Glossopharyngeal (IX)
10
Q
IV & VI. Structures
A
- Thyroid
- Cricoid
- Arytenoid
- Cuneiform cartilage of the larynx
11
Q
IV & VI. Muscles
A
- Cricothyroid
- Pharyngeal Constrictors
- Levator Palatine
12
Q
IV & VI. Nerves
A
- IV: External branch of Superior Laryngeal Nerve
- VI: Recurrent Laryngeal Nerve
13
Q
I. Pharyngeal Pouch Structures
A
- Tubotympanic Recess: Primitive Tympanic or Middle Ear, Pharyngotympanic Tube, and inner lining of Tympanum
14
Q
II. Pharyngeal Pouch Structures
A
- Palatine Tonsils
2. Tonsillar Fossa (later invaded by mesoderm)
15
Q
III. Pharyngeal Pouch Structures
A
- Inferior Parathyroid (Dorsal)
2. Thymus (Ventral)
16
Q
IV. Pharyngeal Pouch Structures
A
- Superior Parathyroid
17
Q
VI. Pharyngeal Pouch Structures
A
- Ultimobranchial Body (incorporated into thyroid and forms “C”/Parafollicular Cells)
18
Q
I. Pharyngeal Cleft Structures
A
- External auditory meatus
2. Ectodermal lining of Tympanum
