The Pharynx

Question 1

what is the pharynx

Answer 1

muscular tube that connects the oral and nasal cavity to the larynx and oesophagus

Question 2

what are the three parts of the pharynx

Answer 2

nasopharynx
oropharynx
laryngopharynx

Question 3

where is the nasopharynx found

Answer 3

between the base of the skull and the soft palate

Question 4

what is the function of the nasopharynx

Answer 4

condition inspired air and propagate it into the larynx

Question 5

what lines the nasopharynx

Answer 5

ciliated pseudostratified columnar epithelium with goblet cells

Question 6

where are adenoid tonsils found

Answer 6

posterosuperior nasopharynx

Question 7

where is the oropharynx located

Answer 7

between the soft palate and the superior border of the epiglottis

Question 8

what is contained in the oropharynx

Answer 8

• posterior third of the tongue
• lingual tonsils
• palatine tonsils
• superior constrictor muscle

Question 9

where is the laryngopharynx located

Answer 9

between the superior border of the epiglottis and the inferior border of the cricoid cartilage

Question 10

which constrictors are found in the laryngopharynx

Answer 10

the middle and inferior pharyngeal constrictors

Question 11

how does the laryngopharynx communicate with the larynx

Answer 11

via the laryngeal inlet

Question 12

what is the inferor pharyngeal constrictor split into

Answer 12

the thyropharyngeus and the cricopharyngeus

Question 13

which nerve innervates the muscles of the pharynx

Answer 13

vagus

Question 14

what is the exception of the pharynx that is not supplied by the vagus nerve

Answer 14

stylopharyngeus

Question 15

what supplies the stylopharyngeus

Answer 15

the glossopharyngeal nerve

Question 16

what muscle type are the pharyngeal constrictors

Answer 16

circular

Question 17

what are the three pharyngeal constrictors

Answer 17

superior, middle and inferior

Question 18

where is the superior pharyngeal constrictor found

Answer 18

in the oropharynx

Question 19

where is the middle pharyngeal constrictor found

Answer 19

the laryngopharynx

Question 20

where do all of the pharyngeal constrictors insert

Answer 20

the pharyngeal raphe

Question 21

what are the longitudinal muscles of the pharynx

Answer 21

stylopharyngeus
palatapharyngeus
salpingopharyngeus

Question 22

what is the function of the longitudinal muscles of the pharynx

Answer 22

shorten and widen the pharynx, elevate the larynx during swallowing

Question 23

what are the circular muscles of the pharynx

Answer 23

the pharyngeal constrictors

Question 24

what is the function of the circular muscles of the pharynx

Answer 24

constrict the pharyngeal lumen to propel bolus of food into the oesophagus

Question 25

what forms the pharyngeal plexus

Answer 25

pharyngeal branches of the glossopharyngeal nerve and the vagus nerve

Question 26

what provides the sympathetic innervation for the pharynx

Answer 26

superior clavical ganglion

Question 27

what provides sensory information for the pharynx

Answer 27

the glossopharyngeal nerve

Question 28

where does the pharyngeal plexus lie

Answer 28

over the middle pharyngeal constrictor

Question 29

which nerve innervates the nasopharynx

Answer 29

the maxillary nerve

Question 30

what does the arterial supply of the pharynx arise from

Answer 30

the external carotid artery

Question 31

what are the branches of the external carotid artery that supply the pharynx

Answer 31

the ascending pharyngeal, facial, lingual and maxillary

Question 32

how is venous drainage of the pharynx achieved

Answer 32

pharyngeal venous plexus

Question 33

what does the pharyngeal venous plexus drain into

Answer 33

the jugular vein