Anterior Triangle Suitcase

Question 1

Name defining boundaries

Answer 1

Median line of neck, anterior border of SCM, inferior border of mandible

Question 2

Where does the median line of neck extend from/to?

Answer 2

Sternum to chin

Question 3

What is the skin like over the anterior neck?

Answer 3

Thin

Question 4

Name muscle found in anterior triangle

Answer 4

Platysma

Question 5

What is the platysma?

Answer 5

Muscles of facial expression that migrated onto neck and dragged nerve with it

Question 6

What is the nerve supply to platysma?

Answer 6

Facial Nerve

Question 7

Which cranial nerve is facial nerve?

Answer 7

CN VIII

Question 8

What is found under platysma?

Answer 8

Superficial veins

Question 9

What do these veins drain?

Answer 9

Superficial head and neck

Question 10

Name 5 veins found under platysma

Answer 10

Retromandibular, facial, external jugular, anterior jugular, communicating vein

Question 11

What is retromandibular vein formed from?

Answer 11

maxillary and superficial temporal veins

Question 12

What does retromandibular vein connect?

Answer 12

jugular and common facial veins

Question 13

What does facial vein drain?

Answer 13

Drains face into internal jugular

Question 14

What does external jugular vein cross over?

Answer 14

SCM

Question 15

Where is anterior jugular found?

Answer 15

near midline

Question 16

Where is communicating vein found?

Answer 16

Between anterior jugular and common facial veins

Question 17

Which four triangles can anterior triangle be divided into?

Answer 17

Submandibular, submental, carotid and muscular

Question 18

What are the boundaries of the muscular triangle?

Answer 18

superior belly of omohyoid, anterior border of SCM, median line of neck

Question 19

Which muscles does muscular triangle contain?

Answer 19

Strap muscles - 4 muscles in 2 groups

Question 20

What are the superficial muscles of the muscular triangle?

Answer 20

Superior belly of omohyoid, sternohyoid

Question 21

What does the superior belly of omohyoid do?

Answer 21

depresses hyoid bone

Question 22

What does sternohyoid do?

Answer 22

depresses hyoid bone

Question 23

What are the two deep muscles of the muscular triangle?

Answer 23

thyrohyoid, sternothyroid

Question 24

What does thyrohyoid do?

Answer 24

depresses hyoid bone

Question 25

What does sternothyroid do?

Answer 25

depresses thyroid cartilage and hence hyoid bone

Question 26

What are all strap muscles supplied by?

Answer 26

ansa cervicalis

Question 27

What are the 2 glands, artery(ies), vein(s) and nerve (deep) found in muscular triangle?

Answer 27

Thyroid gland, parathyroid gland, superior/middle/inferior thyroid veins and superior/inferior thyroid arteries, thyroid ima artery,recurrent laryngeal nerve (CN X)

Question 28

Where is the thyroid gland found?

Answer 28

Deep to strap muscles

Question 29

What joins left and right thyroid lobes across the midline?

Answer 29

isthmus

Question 30

Which lobe, if present, ascends from isthmus?

Answer 30

pyramidal lobe

Question 31

Which veins drain thyroid?

Answer 31

Superior, middle and inferior thyroid veins

Question 32

What artery (ies) supply thyroid?

Answer 32

Superior and inferior thyroid arteries and possibly thyroid ima inferiorly

Question 33

Where does thyroid ima artery come from?

Answer 33

brachiocephalic

Question 34

What function are the parathyroid glands critical for?

Answer 34

Ca and phosphorous metabolism

Question 35

Where are the parathyroid glands located?

Answer 35

On postero-medial surfaces of thyroid lobes

Question 36

Where does the recurrent larygneal nerve run?

Answer 36

In groove next to esophagus, just deep to thyroid gland

Question 37

Where does the recurrent curve around?

Answer 37

Right subclavian on right side; aorta on left side

Question 38

What function to what area does the recurrent laryngeal provide?

Answer 38

Motor innervation to larynx