Anatomical Relations of Pharynx

Question 1

Where does the Pharynx begin?

Answer 1

Base of skull

Question 2

Function of Pharnyx

Answer 2

Connects the oral and nasal cavities to the oseophagus and larynx

Question 3

Where does the Pharynx end?

Answer 3

Inferior border of cricoid cartilage

Question 4

Vertebral level of cricoid cartilage

Answer 4

C6

Question 5

Name the 3 parts that the pharynx is divided into

Answer 5

Nasopharynx
Oropharynx
Laryngopharynx

Question 6

Which structure separates the nasopharynx from the oropharnynx?

Answer 6

Soft palate

Question 7

What are choanae?

Answer 7

Paired openings of the nasal cavity into the nasopharynx

Question 8

Where does the nasopharynx begin?

Answer 8

Base of skull

Question 9

Give the 2 respiratory functions of the nasopharynx

Answer 9

1. Conditions inspired air

2. Propagates air into the larynx

Question 10

Describe the respiratory epithelium of the nasopharynx

Answer 10

Ciliated pseudostratified columnar epithelium with goblet cells

Question 11

A more common term for pharyngeal tonsils

Answer 11

Adenoids

Question 12

Function of eustachian tube (aka pharyngotympanic tube or auditory tube)

Answer 12

Connects the middle ear to the nasopharynx

Question 13

Opens the pharyngeal orifice of Eustachian tube during swallowing

Answer 13

Salpingopharyngeal muscle

Question 14

Which structure separates the oropharynx from the laryngeopharynx?

Answer 14

Inferior border of cricoid cartilage and oseophagus

Question 15

Function of oropharynx

Answer 15

Voluntary and involuntary stages of swallowing

Question 16

4 contents of oropharynx

Answer 16

1. Posterior 1/3 tongue
2. Lingual tonsil
3. Palatine tonsil
4. Superior constrictor muscle

Question 17

Lymphoid tissue at the base of the tongue

Answer 17

Lingual tonsil

Question 18

Lymphoid tissue in tonsillar sinus

Answer 18

Palatine tonsil

Question 19

Space between the two pharyngeal arches

Answer 19

Tonsillar sinus

Question 20

Which is more anterior: palatoglossal arch or palatopharyngeal arch?

Answer 20

Palatoglossal arch is anterior

Palatopharyngeal arch is posterior

Question 21

Posterior boundary of oropharynx

Answer 21

C2-C3

Question 22

Posterior boundary of laryngopharynx

Answer 22

C4-C6

Question 23

How does the laryngopharynx communicate with the larynx?

Answer 23

Laryngeal inlet

Question 24

What separates the piriform fossa from the laryngeal inlet?

Answer 24

Ary-eiglottice fold

Question 25

Small depression either side of laryngeal inlet`

Answer 25

Piriform fossa

Question 26

Which two nerves lie deep to the piriform fossa?

Answer 26

Internal laryngeal nerve

Recurrent laryngeal nerve

Question 27

What are the 3 contents of carotid sheath?

Answer 27

1. Vagus nerve
2. Common carotid artery
3. Internal jugular vein

Question 28

What is CN IX?

Answer 28

Glossopharyngeal nerve

Question 29

What is CN X?

Answer 29

Vagus nerve

Question 30

What is CN XI?

Answer 30

Spinal accessory nerve

Question 31

What is CN XII?

Answer 31

Hypoglossal nerve