Anterior triangle

Question 1

where is the anterior triangle situated?

Answer 1

front of neck

Question 2

what is the superior boundary of the anterior triangle?

Answer 2

inferior border of mandible (jawbone)

Question 3

what is the lateral border?

Answer 3

medial border of SCM

Question 4

what is the medial border?

Answer 4

imaginary sagittal line down midline of body

Question 5

what does the anterior triangle contain?

Answer 5

muscles
nerves
arteries
veins
lymph nodes

Question 6

how are muscles in this part of neck divided?

Answer 6

as to where they lie in relation to the hyoid bone

Question 7

how many suprahyoid muscles are there?

Answer 7

4

Question 8

what are the suprahyoid muscles?

Answer 8

SDMG:
stylohyoid
digastric
mylohyoid
geniohyoid

Question 9

how many infrahyoid muscles are there?

Answer 9

4

Question 10

what are the 4 infrahyoid muscles?

Answer 10

OSTS:
omohyoid
sternohyoid
thyrohyoid
sternothyroid

Question 11

which artery passes through the anterior triangle?

Answer 11

common carotid artery

Question 12

what happens to the common carotid artery as it passes through the ant triangle?

Answer 12

bifurcates within the triangle into external and internal carotid arteries

Question 13

which vein is found within the AT?

Answer 13

internal jugular vein

Question 14

what does the IJV drain?

Answer 14

head and neck

Question 15

which nerves are located within the AT?

Answer 15

numerous cranial nerves

Question 16

what are the cranial nerves within the AT?

Answer 16

7, 9, 10, 11, 12 (FGVAH)
facial (VII)
glossopharyngeal (IX)
vagus (X)
accessory (XI)
hypoglossal (XII)

Question 17

which muscles are used to further subdivide the AT? into what?

Answer 17

hyoid bone
suprahyoid and infrahyoid muscles
subdivide into 4 triangles

Question 18

what are the subdivision of the 4 triangles?

Answer 18

carotid triangle
submental triangle
submandibular triangle
muscular triangle