Neck Wk7

Question 1

What muscle in the neck does the facial nerve innervate?

Answer 1

Stylohyoid muscle from the
hyoid

Question 2

What is in the anterior triangle?

Answer 2

Vagus nerve, carotid arteries, and internal jugular

Question 3

What are the 4 suprahyoid muscles?

Answer 3

• Digastric (anterior belly [V3])
• Digastric (posterior belly [VII])
• Stylohyoid [VII]
• Mylohyoid [V3]
• Geniohyoid [C1 branch via
  hypoglossal]

Question 4

Stylohyoid [VII]

Answer 4

• Stylohyoid [VII]
  Pulls hyoid back

Question 5

Mylohyoid [V3]

Answer 5

• Mylohyoid [V3]
  Elevate hyoid

Question 6

Geniohyoid (C1 branch via hypoglossal)

Answer 6

• Geniohyoid [C1 branch via
  hypoglossal]
  Pulls hyoid forward - when mandible
  fixed
  Pulls mandible down - when hyoid
  fixed

Question 7

Diagastric anterior and posterior do what to the hyoid?

Answer 7

• Digastric (anterior belly [V3])
  Lower mandible, raises hyoid
• Digastric (posterior belly [VII])
  Pulls hyoid up and back

Question 8

For posterior compartment of the neck

Answer 8

Veins of face and skull drain to external jugular vein

Question 9

What function do scalene do

Answer 9

elevation of the ribs

Question 10

What depresses the hyoid?

Answer 10

Inf. belly omohyoid

Question 11

What is the only hyoid muscle in both anterior
and posterior triangles

Answer 11

Omohyoid is the only hyoid muscle in both anterior
and posterior triangles

Question 12

What are the three pairs of large glands that open and secrete
saliva into the oral cavity?

Answer 12

Parotid (Glossopharyngeal, CN IX)
Sub-mandibular (Parasympathetic - Facial, CN VII)
Sub-lingual (Parasympathetic - Facial, CN VII)