TSM 1.32

Question 1

which muscle divide the anterior and posterior triangle?

Answer 1

sternocleidomastoid muscle

Question 2

contents of the posterior triangle?

Answer 2

• phrenic nerve
• prevertebral muscles
• roots of brachial plexus
• suprascapular artery
• transverse cervical artery
• apex of lungs

Question 3

where does teh submandibular duct open?

Answer 3

• either side of frenulum anteriorly

Question 4

what is the innervation of submandibular gland?

Answer 4

• preganglionic fibres by CN VII
• synapse in submandibular ganglion
• post ganglionic fibres by lingual nerve

Question 5

what are the branches of the external carotid artery?

Answer 5

• Ascending pharyngeal
• Superior thyroid
• Lingual
• Facial
• Occipital
• Posterior Auricular
• Superficial temporal
• Maxillary

Question 6

which vein drains superficial face?

Answer 6

• external jugular vein

Question 7

what are the root values of cervical plexus?

Answer 7

C1-4

Question 8

which nerve innervates (motor) most of the strap muscles?

Answer 8

• ansa cervicalis

Question 9

what are the root values of brachial plexus?

Answer 9

C5-8 and T1

Question 10

which nerve helps to carry innervation from branches of C1?

Answer 10

hypoglossal nerve

Question 11

glossopharyngeal nerve is sensory to which areas?

Answer 11

• posterior 1/3 tongue
• circumvallate papillae
• pharynx
• inner surface of tympanic membrane

Question 12

glossopharyngeal nerve is motor to which areas?

Answer 12

stylopharygeus

Question 13

which nerve is sensory to larynx?

Answer 13

vagus nerve

Question 14

what are the three ganglion of the sympathetic chain?

Answer 14

• superior cervical ganglion
• middle cervical ganglion
• inferior cervical ganglion

Question 15

what does the vertebral arteries travel through?

Answer 15

foramen transversarium

Question 16

what can be damaged during thyroidectomy?

Answer 16

• inferior thyroid artery

- recurrent laryngeal nerve

Question 17

where is the istmus of the thyroid gland based on cartilage rings?

Answer 17

2nd to 4th tracheal ring

Question 18

where is the base of the thyroid gland based on cartilage rings?

Answer 18

4th and 5th

Question 19

what is the blood supply to parathyroid gland?

Answer 19

• inferior thyroid arteries

Question 20

what does the pharyngeal plexus consist of?

Answer 20

• CN IX
• CN X
• CN XI
• sympathetic nerves

Question 21

what muscles does pharyngeal branch of vagus nerve innervates?

Answer 21

all muscle of pharynx and soft palate except stylopharyngeus and tensor veli palatini

Question 22

which nerve innervate stylopharyngeus?

Answer 22

CN IX

Question 23

which nerve innervate tensor veli palatini?

Answer 23

CN V (mandibular branch)

Question 24

what is the vagoaccessory complex?

Answer 24

pharyngeal branch of vagus emerge from upper part of inferior vagal ganglion which is derived from cranial accessory nerve

Question 25

what are the three opening of the pharyngeal wall?

Answer 25

- between superior and middle constrictor - between middle and inferior constrictor - below inferior constrictor

Question 26

what goes between superior and middle constrictor?

Answer 26

- stylopharyngeus | - glosspharyngeal nerve

Question 27

what goes between middle and inferior constrictor?

Answer 27

- internal laryngeal nerve - superior laryngeal artery - superior laryngeal vein

Question 28

what goes in from below the inferior constrictor?

Answer 28

- recurrent laryngeal nerve - inferior laryngeal artery - inferior laryngeal vein

Question 29

what is the clinical significance of killian's dehiscence

Answer 29

a weak spot where diverticulum (zenker diverticulum)

Question 30

what are the longitudinal muscles of pharynx?

Answer 30

- palatopharyngeus - salpingopharyngeus - stylopharyngeus

Question 31

what do the longitudinal muscles do?

Answer 31

elevate pharyngeal wall during swallowing