1.32 Neck and Pharynx Flashcards Preview

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Flashcards in 1.32 Neck and Pharynx Deck (29):
1

What are the compartments of the neck?

Investing - surround neck - continuous with deep fascia in the face - splits around SCM, trapezius and glands
Prevertebral - vertebral column and associated muscles - all the way to occipital bone - forms axillary sheaths
Pretracheal - trachea, oesophagus - continuous with buccal fascia

2

Due to the neck fascias, where can infection from the neck spread?

Dental infection all the way down through the mediastinum

3

Which muscles create the posterior triangle of the neck?

SCM, trapezius and middle third of clavicle

4

Which fascia and nerves are found in the posterior triangle?

Prevertabral fascia
XI - supply scm and trapezius

5

What are the contents of the posterior triangle?

Roots of brachial plexus
prevertabral muscles
Phrenic nerves
Suprascapular artery
Transverse cervical artery
apex of lungs

6

Where do the brachial plexus roots emerge from?

Between anterior and middle scalene

7

Where do scaleneus ant. And medius attach to?

1st rib - accessory respiratory

8

Which muscles make up the floor of the posterior triangle?

Splenus capitus, levator scapulae, scalene muscles, posterior

9

What are the borders of the anterior triangle?

SCM, midline of neck, lower border of mandible

10

What is found in the anterior triangle of the neck?

ECA, ICA and INJ
Suprahyoid and infrahyoid muscles

11

What salivary volume does the submandibular gland produce?

65%

12

Where does the submandibular duct open?

Either side of frenulum

13

What is the parasympathetic innervation of the submandibular gland?

Preganglionic - chordae t via V3
Post ganglionic - V3
anterior triangle

14

What are the branches of th external carotid artery?

Some Anatomists Like Freaking Out Poor Medical Students
Superior thyroid, Ascending pharyngeal, Lingual, Facial, Occipital, Posterior auricular, Maxillary, Superficial temporal

15

Where do most of the veins from face neck drain into?

External Jugular Vein

16

What could cause a raised JVP?

Increased right ventricular pressure, right sided HF, sup. vena cava obstruction, obstruction of blood flow from right atrium to right ventricle and positive intrathoracic pressure

17

Where does the common carotid artery bifurcate?

C3-C4

18

Which nerve roots supply sensation over scalp, neck and ear?

c5 - c8

19

What innervation does the ansa cervicalis supply and which nerve roots does it originate from?

c1-c3

20

Which roots make up the brachial plexus?

C5-C8

21

What innervation in the neck does the vagus nerve provide?

Most soft palate muscles, most pharynx and larynx muscles and sensory to the larynx

22

Through which foramen do vertebral arteries travel through?

Foramen trasversarium to enter cranial cavity through the foramen magnum

23

What is the function of the thyroid gland?

Differentiation of all cells - regulate protein fat and carbohydrate metabolism - protein, bone and neuronal growth, - inc, catecholamine activity

24

Which nerve provides the main sensory innervation for the pharynx?

IX glossopharyngeal

25

Which nerve provides the main motor innervation for the pharynx?

Pharyngeal branch of vagus

26

What is the attachement of the superior constrictor of the pharynx?

Midline Raphe

27

Which cranial nerves make up the pharyngeal plexus and what does it innervate?

IX, X, XI - all muscles of the pharynx except for stylopharyngess which is innervated by a direct branch from IX

28

For each section of the pharynx, which nerve is responsible for sensation?

Nasopharynx - V2
Oropharynx - IX
Laryngopharynx - X

29

What are the longitudinal muscles of the pharynx?

Palatopharyngeus - X
Salpingopharyngeus - X
Stylopharyngeus - IX