Tongue, Pharnyx, Oesophagus and stomach

Question 1

What are the extrinsic muscles of tongue?

Answer 1

Styloglossus
Hyoglossus
Genioglossus

Question 2

where does styloglossus orginate?

Answer 2

styloid process

Question 3

where does hyoglossus originate?

Answer 3

hyoid bone

Question 4

where does genioglossus originate?

Answer 4

superior genial tubercles

Question 5

what does styloglossus do

Answer 5

pulls tongue posterosuperiorly

Question 6

what does hyoglossus do?

Answer 6

pulls tongue inferiorly

Question 7

what does genioglossus do ?

Answer 7

pulls tongue anteriorly

Question 8

what are intrinsic muscles of tongue?

Answer 8

Longtidunal
Vertical
Transverse

Question 9

what does longitudinal muscles bundle into?

Answer 9

superior and inferior bundles

Question 10

what does superior bundle do?

Answer 10

moves tip up

Question 11

what does inferior bundle do

Answer 11

pulls tip inferiorly

Question 12

what does vertical muscle do?

Answer 12

• thins tongue in superoinferior axis
• tongue flattens
• tongue widens along mediolateral and anteroposterior axis

Question 13

What does transverse muscle do?

Answer 13

make tongue narrow, longer and thinner

Question 14

What nerve supplies motor impulses to tongue muscles?\

Answer 14

Hypoglossal nerve, CN 12

Question 15

How is tongue divided?

Answer 15

into anterior 2/3 and posterior 1/3

Question 16

v shaped boundary on tongue?

Answer 16

Sulcus terminalis

Question 17

Islands on tongue?

Answer 17

Circumvallate papillae

Question 18

what is a branch of facial nerve?

Answer 18

Chorda tympani

Question 19

what do taste fibres initially travel in?

Answer 19

lingual nerve

Question 20

what is the lingual nerve a branch of?

Answer 20

posterior trunk of mandibular division of CN5

Question 21

what is sensory innervation to 2/3 tongue?

Answer 21

chorda tympani branch of CN7

Question 22

what is sensory innervation to posterior 1/3 of tongue?

Answer 22

supplied by Glossopharyngeal nerve. CN9

Question 23

What does branches of CN9 carry to tongue?

Answer 23

taste and sensory fibres

Question 24

what regions is pharynx divided into?

Answer 24

Nasopharynx, Oropharynx and laryngopharynx

Question 25

where is nasopharynx?

Answer 25

posterior to nasal cavity

Question 26

where is oropharynx?

Answer 26

posterior to oral cavity

Question 27

where is laryngopharynx?

Answer 27

posterior to larynx

Question 28

what are the outer muscle layers of pharynx?

Answer 28

superior, middle and inferior constrictor

Question 29

where are 3 outer muscles fused?

Answer 29

at median pharyngeal raphe to form outer layer

Question 30

Where does superior constrictor originate ?

Answer 30

pterygomandibular raphe to mylohoid line of mandible

Question 31

where does superior constrictor insert?

Answer 31

into median pharyngeal raphe and attaches to base of skull

Question 32

where does middle constrictor originate?

Answer 32

hyoid bone

Question 33

where does middle constrictor insert

Answer 33

median pharyngeal raphe, overlaps inferior part of superior constrictor

Question 34

where does inferior constrictor originate?

Answer 34

external surface of larynx

Question 35

where does inferior constrictor insert?

Answer 35

median pharyngeal raphe, overlaps inferior part of middle constrictor

Question 36

what is continuous with superior constrictor?

Answer 36

buccinator at pterygomandibular raphe

Question 37

what are INNER longitudinal muscles of pharynx ?

Answer 37

Salpingopharyngeus palatopharyngeus stylopharyngyeus

Question 38

where does Salpingopharyngeus originate?

Answer 38

auditory tube, eustachian

Question 39

where does palateoharyngeus originate ?

Answer 39

hard and soft palates

Question 40

where does stylopharyngeus originate?

Answer 40

styloid process

Question 41

what nerve is stylopharyngues supplied by

Answer 41

Glossopharyngeal nerve

Question 42

what do inner muscles of pharynx do?

Answer 42

elevate pharynx

Question 43

What is oesophagus muscle arrangement?

Answer 43

outer muscle layer is longitudinal | inner muscle layer is circular

Question 44

where does oesophagus receive blood supply ?

Answer 44

thoracic aorta

Question 45

where does de02 blood from oesophagus drain into?

Answer 45

gastric veins then into liver