neck and face

Question 1

diagram of triangles of neck

Answer 1

Question 2

what 3 things make up border of posterior triangle

Answer 2

posterior surface of sternocleidomastoid muscle, anterior border of trapezius, middle 1/3 of clavicle

Question 3

main contents of posterior triangle

Answer 3

blood vessels and nerves

Question 4

blood vessels in posterior triangle

Answer 4

external jugular vein, subclavian artery, subclavian vein

Question 5

nerves in posterior triangle

Answer 5

trunks of brachial plexus, phrenic nerve, vagus nerve, spinal accessory nerve

Question 6

what vein runs superficially down the sternocleidomastoid muscle, and what two veins have drained into it

Answer 6

external jugular vein, which is formed by anastomosis of retromandibular vein and posterior auricular vein

Question 7

what two other veins join the external jugular vein anterior to the trapezius before reaching the clavicle

Answer 7

posterior external jugular vein, transverse cervical vein

Question 8

vein anterior to sternocleidomastoid muscle

Answer 8

anterior jugular vein

Question 9

diagram of veins in posterior triangle

Answer 9

Question 10

what does the external jugular vein drain into

Answer 10

subclavian vein

Question 11

branch of subclavian artery which ascends superiorly

Answer 11

thyrocervical trunk

Question 12

3 branches of thryocervical trunk

Answer 12

inferior thyroid artery, suprascapular artery, transverse cervical artery

Question 13

what nerve runs inferiorly by common carotid artery

Answer 13

vagus nerve

Question 14

which nerve runs inferiorly by anterior scalene muscle

Answer 14

phrenic nerve

Question 15

what plexus exits in between anterior and middle scalene muscles

Answer 15

brachial plexus

Question 16

diagram of nerves and arteries in posterior triangle

Answer 16

Question 17

what 2 nerves cross the sternocleidomastoid muscle

Answer 17

greater auricular nerve superiorly and transverse cervical nerve inferiorly

Question 18

what nerve runs inferiorly by posterior of sternocleidomastoid muscle

Answer 18

lesser occipital nerve

Question 19

what do the supraclavicular nerves arise from, where do they emerge and where do they descend

Answer 19

arise from 3rd and 4th cervical nerves; emerge beneath posterior border of the sternocleidomastoid muscle; descend in posterior triangle beneath platysma

Question 20

diagram of nerves in posterior triangle

Answer 20

Question 21

4 nerves and plexuses present in root of neck

Answer 21

brachial plexus (C5-T1), vagus, recurrent laryngeal, phrenic

Question 22

5 vessels present in root of neck

Answer 22

common carotid arteries medially, vertebral arteries deep to common carotid arteries subclavian artery and vein laterally over 1st rib, thoracic duct on left side

Question 23

2 visceral structures present in root of neck

Answer 23

trachea anterior to oesophagus, with dome of pleura posterior to oesophagus

Question 24

2 sets of muscles present in root of neck

Answer 24

anterior scalene connecting C3-C6 transverse processes to 1st rib; infrahyoid (strap) muscles anteriorly by manubrium

Question 25

diagram of root of neck

Answer 25