Embryology

Question 1

Pharyngeal Arch 1 - origin of which muscles?

Answer 1

Muscles of mastication: anterior belly of digastric, mylohyoid, tensor tympanii, tensor veii palatini

Question 2

Pharyngeal Arch 1 - origin of which MSK anatomy?

Answer 2

Maxilla, mandible, zygoma, part of temporal bone, incus and malleus, sphenomandibular ligament

Question 3

Pharyngeal Arch 1 - origin of which nerves?

Answer 3

Trigeminal nerve - V2 and V3

Question 4

Pharyngeal Arch 2 - origin of which muscles?

Answer 4

Muscles of facial expression: buccinator, platysma, stapedius, stylohyoid, post belly of digastric

Question 5

Pharyngeal Arch 2 - origin of which MSK anatomy?

Answer 5

Stapes, temporal styloid process, hyoid, stylohyoid ligament, reichert’s cartilage

Question 7

Pharyngeal Arch 2 - origin of which nerves?

Answer 7

Facial nerve

Question 8

Pharyngeal Arch 3 - origin of which muscles?

Answer 8

Stylopharyngeus

Question 9

Pharyngeal Arch 3 - origin of which MSK anatomy?

Answer 9

inferior parathyroids, hyoid

Question 10

Pharyngeal Arch 3 - origin of which nerves?

Answer 10

Glossopharyngeal nerve

Question 11

Pharyngeal Arch 4 - origin of which muscles?

Answer 11

Cricothyroid

Question 12

Pharyngeal Arch 4 - origin of which MSK anatomy?

Answer 12

Thyroid cartilage, superior parathyroids, epiglottic cartilage

Question 13

Pharyngeal Arch 4 - origin of which nerves?

Answer 13

Vagus, sup laryngeal

Question 14

Pharyngeal Arch 6 - origin of which muscles?

Answer 14

Intrinsic muscles of larynx except cricothyroid

Question 15

Pharyngeal Arch 6 - origin of which MSK anatomy?

Answer 15

Cricoid cartilage, arytenoid cartilages, corniculate cartilage, cuneiform cartilage

Question 16

Pharyngeal Arch 6 - origin of which nerves?

Answer 16

Vagus, recurrent laryngeal

Question 17

Foregut - origin of which structures?

Answer 17

Oesophagus to proximal half 2nd part duodenum
Liver
Gall Bladder
Spleen
Pancreas
Lower Resp tract

Question 18

Innervation of foregut structures?

Answer 18

T5 to T9

Question 19

Blood supply of foregut?

Answer 19

Coeliac Trunk

Question 20

Midgut - origin of which structures?

Answer 20

Distal half of 2nd part of duodenum to proximal 2/3 of transverse colon

Question 21

Innervation of midgut?

Answer 21

T10 and T11

Question 22

Blood supply to midgut?

Answer 22

Superior Mesenteric Artery

Question 23

Hindgut - origin of which structures?

Answer 23

Distal 1/3 of transverse colon to anal canal

Question 24

Innervation of hindgut

Answer 24

T12 and L1

Question 25

Blood supply to hindgut?

Answer 25

Inferior Mesenteric Artery