Neck 3

Question 1

Superior thoracic inlet is bounded by

Answer 1

manubrium, 1st rib, T1

Question 2

Superior thoracic inlet contents

Answer 2

nerves, vessels, viscera

Question 3

Axillary apex is bounded by

Answer 3

scapula, 1st rib, clavicle

Question 4

Axillary apex contents

Answer 4

nerves, vessels

Question 5

What are the types of scalene muscles?

Answer 5

Anterior, middle & posterior

Question 6

Origin of 3 scalene muscles

Answer 6

Anterior = anterior tubercle of transverse processes
Middle = posterior tubercle of transverse process
Posterior: posterior tubercle of transverse process

Question 7

Insertion of 3 scalene muscles

Answer 7

Anterior & middle = 1st rib (wraps around neck & attaches to 1st rib)
Posterior = 2nd rib

Question 8

What are the scalene muscles innervated by?

Answer 8

C4-C5 (VPRs)

Question 9

Function of scalene muscles

Answer 9

flexion, lateral flexion, lateral rotation of neck, & accessory muscles of respiration

Question 10

What runs through the root of the neck?

Answer 10

Brachiocephalic vein
Brachial plexus
Subclavian artery

Question 11

What are the branches of the subclavian artery? What is within each part?

Answer 11

1st part:
- Vertebral artery
- Internal thoracic artery
- Thyrocervical trunk

2nd part:
- Costocervical trunk

3rd part:
- Dorsal scapular artery

Question 12

Branch of the internal thoracic artery

Answer 12

anterior intercostal arteries

Question 13

Branch of the thyrocervical trunk

Answer 13

ascending cervical artery, inferior thyroid artery, transverse cervical artery, & subscapular artery

Question 14

Branch of the costocervical trunk

Answer 14

deep cervical artery & superior intercostal artery

Question 15

The vagus n. is nested between

Answer 15

internal jugular & common carotid

Question 16

What branches off of the vagus n?

Answer 16

Recurrent laryngeal nerve

Question 17

Function of recurrent laryngeal nerve?

Answer 17

supplies innervation to all intrinsic muscles of the larynx

Question 18

What are the types of cervical ganglia?

Answer 18

Superior cervical ganglia
Middle cervical ganglia
Inferior cervical ganglia

Question 19

What cervical ganglia provides all sympathetic innervation to the head & neck?

Answer 19

Superior cervical ganglia

Question 20

Where does the inferior cervical ganglia start?

Answer 20

Starts at C8 spinal nerve in T1

Question 21

Are there white communications directly from spinal cord in the cervical ganglia?

Answer 21

No

Question 22

Where does the thoracic duct come off of? What’s its function?

Answer 22

Subclavian

Transports lymph back into circulatory system

Question 23

What are the nerves of the root of the neck?

Answer 23

Phrenic n.
Vagus n.
Recurrent laryngeal n.