Digastric Triangle: Styloid Apparatus

Question 1

Styloid apparatus

Answer 1

Styloid process with structures attached to it

Question 2

Muscles

Answer 2

1. Styloglossus
2. Stylohyoid
3. Stylopharyngeus

Question 3

Styloglossus origin

Answer 3

Styloid process tip

Question 4

Styloglossus insertion

Answer 4

Whole side tongue

Question 5

Styloglossus nerve supply

Answer 5

Hypoglossal nerve

Question 6

Styloglossus action

Answer 6

Retracts and elevates tongue

Question 7

Stylohyoid origin

Answer 7

Posterior surface styloid process near base

Question 8

Stylohyoid insertion

Answer 8

By 2 slips, in junction of body and greater horn hyoid

Question 9

Stylohyoid nerve supply

Answer 9

Facial nerve

Question 10

Stylohyoid action

Answer 10

Elevates hyoid in swallowing

Question 11

Stylopharyngeus origin

Answer 11

Medial surface styloid process base

Question 12

Stylopharyngeus insertion

Answer 12

Posterior border thyroid cartilage

Question 13

Stylopharyngeus nerve supply

Answer 13

Glossopharyngeal nerve

Question 14

Stylopharyngeus action

Answer 14

Elevates thyroid cartilage and shortens pharynx while swallowing

Question 15

Ligaments

Answer 15

1. Stylohyoid
2. Stylomandibular

Question 16

Stylohyoid ligament

Answer 16

Extends from styloid process tip to lesser horn hyoid

Question 17

Stylomandibular ligament

Answer 17

1. Thickened investing cervical fascia, extends from styloid process anterior surface near its tip to posterior border Nike and ramus mandible
2. Separates parotid and submandibular glands