root of the neck

Question 1

right subclavian artery branches off of what

Answer 1

brachiocephalic trunk

Question 2

left subclavian artery branches off what

Answer 2

arch of aorta

Question 3

subclavian artery runs posterior to

Answer 3

anterior scalene m

Question 4

continuing on, the subclavian artery crosses ___ and becomes ___

Answer 4

crosses RIB 1 and becomes axillary arteries

Question 5

branches of subclavian artery

Answer 5

1) vertebral a
2) internal thoracic a
3) thyrocervical trunk
4) costocervical trunk

Question 6

vertebral artery

Answer 6

• most medial

- enters foramen in transverse process of c6 and goes through foramina of c5 to c1

Question 7

where does the vertebral artery eventually pass through

Answer 7

foramen magnum

Question 8

what does the vertebral a supply

Answer 8

• medulla
• spinal cord
• cerebellum
• dura of posterior cranial fossa

Question 9

internal thoracic artery path

Answer 9

-goes down towards thoracic cavity

Question 10

internal thoracic artery supplies

Answer 10

• diaphragm
• upper anterior abdominal wall
• anterior intercostal space

Question 11

thyrocervical trunk branches

Answer 11

1. inferior thyroid a
2. transverse cervical a
3. suprascapular a

Question 12

path of inferior thyroid a

Answer 12

• ascends anterior to anterior scalene m and turns medially

- crosses anterior to vertebral a

Question 13

inferior thyroid a supplies

Answer 13

• lower portion of thyroid and parathyroid glands
• larynx below vocal cords via inferior laryngeal a
• trachea
• esophagus
• lower aspect of pharyngeal wall (via pharyngeal branches)f

Question 14

branches of inferior thyroid a

Answer 14

ascending cervical a

inferior laryngeal a

Question 15

transverse cervical artery path

Answer 15

• laterally and anteriorly across anterior scalene m and phrenic n
• goes through brachial plexus

Question 16

branches of transverse cervical a

Answer 16

• superficial cervical a

- dorsal scapular a

Question 17

suprascapular a path

Answer 17

• anterior scalene m
• phrenic n
• 3rd part of subclavian a
• brachial plexus

Question 18

costocervical trunk

Answer 18

-2nd part of subclavian a

Question 19

branches of costocervical trunk

Answer 19

• supreme intercostal a

- deep cervical a

Question 20

external JV drains into what

Answer 20

subclavian v

Question 21

anterior JV drains into what

Answer 21

either external JV or subclavian v

Question 22

internal JV and subclavian v join to form what

Answer 22

right brachiocephalic vein

Question 23

phrenic n

Answer 23

-branch of cervical plexus (c3 to c5)

Question 24

phrenic n runs along

Answer 24

anterior surface of anterior scalene m

Question 25

phrenic n passes between

Answer 25

subclavian a and v

Question 26

phrenic n provides motor and sensory innervation to what

Answer 26

diaphragm

Question 27

medial to lateral list of structures near vagus nerve

Answer 27

medial to lateral:

common carotid a, vagus n, internal JV, phrenic n

Question 28

branch of vagus n

Answer 28

recurrent laryngeal n

Question 29

recurrent laryngeal n supplies

Answer 29

• trachea
• esophagus
• mm of larynx except for cricothyroid m

Question 30

right recurrent laryngeal n path

Answer 30

-starts at root of neck and runs under subclavian

Question 31

left recurrent laryngeal n path

Answer 31

-starts in thorax and runs under aorta arch

Question 32

runs along body from skull to coccyx

Answer 32

sympathetic trunk

Question 33

sympathetic preganglionic fibers emerge from what level of spine

Answer 33

T1 (go to highest ganglion in neck)

Question 34

where do synapses of sympathetic fibers to the head occur

Answer 34

superior cervical ganglion

Question 35

branches of superior cervical ganglion pass to

Answer 35

• internal and external carotid a
• c1 to c4
• heart

Question 36

branches of middle cervical ganglion pass to

Answer 36

• c5 to c6
• heart
• per-arterial plexuses to thyroid gland

Question 37

branches of inferior cervical ganglion

Answer 37

• c7 to c8
• vertebral a
• heart