Brainscape's Knowledge GenomeTM

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


See full index

otolaryngology > Embryology > Flashcards

Embryology Flashcards

1
Q

What is gastrulation

A

Formation of germ layers

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

What happens during gastrulation

A

Invagination of the epiblast cells through the primitive streak to form the definitive endoderm and mesoderm

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

When does gastrulation happen

A

The 1st week of development

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

What are the 3 main groups of mesoderm

A

Paraxial, intermediate and lateral plate

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

What is neurulation

A

Formation of the neural tube

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

What causes neurulation

A

Folding of the ectoderm

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

Where do neural crest cells come from

A

The neural tube

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

When do pharyngeal arches develop

A

Week 4 and 5

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

How many pharyngeal arches do we have

A

5
1,2,3,4, and 6

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

Name the 3 main components of the pharyngeal apparatus

A

Core pharyngeal arch
External pharyngeal cleft
Internal pharyngeal pouches

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

What is the core pharyngeal arch made from

A

Mesenchymal tissue

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

What is the external pharyngeal cleft made from

A

Ectoderm

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

What is the internal pharyngeal pouch made from

A

Endoderm

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

What is the role of the cleft and the pouch in pharyngeal apparatus

A

Separate arches

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

What day is arch 1 developed on

A

22

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

What day is arch 2 and 3 developed on

A

24

17
Q

What day is arch 4 and 6 developed on

A

29

18
Q

Name the 3 main components of each pharyngeal arch

A

Neural crest cells
Cranial nerve component
Artery (aortic arch arteries)

19
Q

Role of neural crest cells in the pharyngeal arch

A

Gives rise to the connective tissues and smooth muscle

20
Q

Role of the cranial nerve component of the pharyngeal arch

A

Gives rise to sensory and motor innervation

21
Q

What nerve is associated with the 1st pharyngeal arch

A

Trigeminal nerve: maxillary and mandibular divisions

22
Q

Skeletal components associated with the cranial portion of the 1st pharyngeal arch

A

Maxillary process
Zygomatic bone

23
Q

What skeletal components are associated with the caudal portion of the 1st pharyngeal arch

A

Meckels cartilage
Incus and malleus
Mandible
Squamous portion of the temporal bone

24
Q

What musculature is supplied by CN V3

A

Muscles of mastication
Tensor veli palatini
Tensor tympani
Mylohyoid
Anterior belly of diagastric

otolaryngology (18 decks)

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