A13 Neck

Question 1

Describe the extrinsic muscles of the neck

Answer 1

Brachiocephalicus m.
• cleidocephalicus (cervical part, mastoid part)
• cleidobrachialis

Trapezius m. (cervical part, thoracic part)

Omotransversarius m.

Sternocephalicus m.
• sternohyoideus
• sternothyroideus

Question 2

What nerve innervates the extrinsic muscles of the neck?

Answer 2

Accessory nerve (CN XI)

Question 3

Describe the deep muscles of the neck

Answer 3

Splenius m.

Rhomboideus m.

Serratus ventralis m.

Scalenus m.

Longus capitis m.

Question 4

Describe the position of the deep structures in the neck

Answer 4

Oesophagus lies dorsal to trachea

Vagosympathetic trunk
↓
Common carotid a.
↓
Internal jugular vein
↓
Recurrent laryngeal n.