General Neck

Question 1

What is structure A?

Answer 1

External jugular vein

Question 2

What is structure B?

Answer 2

Greater supraclavicular fossa

Question 3

What is structure C?

Answer 3

Clavicular head of sternocleidomastoid muscle

Question 4

What is structure D?

Answer 4

Sternal head of sternocleidomastoid muscle

Question 5

What is structure E?

Answer 5

Lesser supraclavicular fossa

Question 6

What is structure F?

Answer 6

Sternocleidomastoid muscle

Question 7

What is structure A?

Answer 7

Platysma muscle

Question 8

What is structure B?

Answer 8

Jugular notch

Question 9

What is structure C?

Answer 9

Laryngeal prominence

Question 10

Describe the borders of the platysma muscle

Answer 10

Pectoral fascia
Mandible
Parotid fascia

Question 11

What is this muscle?

Answer 11

Trapezius muscle

Question 12

What is the lateral border of the trapezius

Answer 12

Spine of scapula

Question 13

What is the anterior border of the trapezius?

Answer 13

Sternocleidomastoid muscle

Question 14

Outline the pathway of the external jugular vein.

Answer 14

Origin: union of the posterior division of retromandibular vein and posterior auricular vein.
Descends obliquely, superficial to sternocleidomastoid muscle and drains into subclavian vein.

Question 15

What structures are drained by the external jugular vein?

Answer 15

Face, scalp, neck

Question 16

Describe the origin of the sternal head of the sternocleidomastoid muscle.

Answer 16

Anterior surface of manubrium of sternum

Question 17

Describe the origin of the clavicular head of the sternocleidomastoid muscle.

Answer 17

Medial one third of clavicle

Question 18

Describe the insertion of the sternocleidomastoid muscle.

Answer 18

Mastoid process of temporal bone and superior nuchal line of occipital bone.

Question 19

Describe the action of the sternocleidomastoid muscle.

Answer 19

Flexes and laterally flexes neck; rotates head

Question 20

Describe the innervation of the sternocleidomastoid muscle.

Answer 20

Accessory nerce; proprioceptive fibers from anterior rami C2-C4.

Question 21

Describe the blood supply to the sternocleidomastoid muscle.

Answer 21

Occipital, posterior auricular, superior thyroid and suprascapular arteries.

Question 22

Describe the origin of the platysma muscle.

Answer 22

Pectoral fascia

Question 23

Describe the insertion of the platysma muscle.

Answer 23

Inferior border of mandible and adjacent muscles.

Question 24

Describe the action of the platysma muscle.

Answer 24

Tenses skin of neck, depresses mandible.

Question 25

Describe the innervation of the platysma muscle.

Answer 25

Cervical branch of facial nerve

Question 26

Describe the arterial supply to the platysma muscle.

Answer 26

Submental and suprascapular arteries

Question 27

Describe the origin of the trapezius muscle.

Answer 27

External occipital protuberance and superior nuchal line of occipital bone, nuchal ligament, spinous processes of C7 to T12 vertebrae

Question 28

Describe the insertion of the trapezius muscle.

Answer 28

Posterior aspect of lateral one third of clavicle, acromion, spine of scapula

Question 29

Describe the action of the trapezius muscle.

Answer 29

Elevates, depresses, retracts, and upwardly rotates pectoral/shoulder girdle;
Extends and laterally flexes head and neck

Question 30

At which joint does the trapezius muscle work to move the shoulder girdle?

Answer 30

Acromioclavicular and sternoclavicular joints

Question 31

Describe the innervation of the trapezius muscle.

Answer 31

Accessory nerve;
anterior rami of third and fourth cervical nerves

Question 32

Describe the blood supply to the trapezius muscle.

Answer 32

Occipital, transverse cervical and dorsal scapular arteries