Embryology

Question 1

Name the 3 groups that the mesoderm is organised into

Answer 1

Paraxial

Intermediate

Lateral plate

Question 2

When do the pharygneal arches begin to develop?

Answer 2

Week 4 and 5

Question 3

Name the three components of the pharyngeal apparatus

Answer 3

Core pharyngeal arch

External pharyngeal arch

Internal pharyngeal arch

Question 4

What seperates the pharyngeal arches?

Answer 4

Clefts and pouches

Question 5

Which structures does the mandibular process form?

Answer 5

Meckel’s cartilage

Incus and malleus

Mandible

Squamous portion of temporal bone

Question 6

Which structures does the maxillary process form?

Answer 6

Maxilla

Zygomatic bone

Question 7

Which arch is the glossopharyngeal nerve associated with?

Answer 7

3

Question 8

Which arch is the trigeminal nerve associated with?

Answer 8

1

Question 9

Which arch is associated with the facial arch?

Answer 9

2

Question 10

Which arches are associated with the vagus nerve?

Answer 10

4 and 6

Question 11

When does the tongue start to appear?

Answer 11

Week 4

Question 12

From which cranial nerve is the anterior mucosa of the tongue derived from?

Answer 12

CN V3 (1st pharyngeal arch)

Question 13

From which cranial nerve is the posterior mucosa of the tongue derived from?

Answer 13

CN IX (3rd pharyngeal arch)

Question 14

When does the palate develop?

Answer 14

week 10