Neck Organisation Flashcards
The neck contains
A musculoskeletal core
Superficial muscles
The blood supply to the head
Oesophagus
Trachea
Nerves
Glands
Vertebral column
- Laryngeal Region
- Carotid sheath
- Musculoskeletal core
- Fascial layer
Laryngeal region of the neck contains
3
- Larynx
- Thyroid
- Oesophagus
Carotid sheath of the neck contains
- Carotid artery
- Internal Jugular
- Vagus Nerve
Musculoskeletal layer of the neck contains
3
- Cervical vertebrae
- Neck muscles
- Phrenic nerve
Fascial layer of the neck is composed of
3
- Deep investing fascia
- Sternocleidomastoid muscle
- Trapezius Muscle
Cervical vertebrae
The have a foramen transversarium for the vertebral artery in the cervical vertebrae
Excluding C7, there are no free ribs on the cervical vertebrae, but the small transverse processes represesnt fused ribs.
Neck muscles
7
- Trapezius on the dorsal surface
- Sternocleidomastiod is ventrolateral
- Scalenes are lateral muscles
- Strap muscles are ventromedial
- The Platysma is a facial musle that extends as far as the region of the pectoralis.
- The deep investing fascia of the neck wraps even the trapezius and sternocleidomastoid. It also wraps their deep side.
- Sensory nerves and the jugular vein peirce it.
The acessory nerve is motor to
The sternocleidomastoid and trapezius
The sternocleidomastoid
extends from
brings
mastoid process to sternum and clavicle
it brings the head forward on the atlanto-occipital joint.
The trapezius
extends from
brings
Nuchal line of occipital to shoulter blade and spine.
Rocks the head back or raises the shoulders (shrugging)
It helps deep muscles support the weight of the head on the body.
Posterior Triangle
is
contains 4
Between sternocleidomastoid and trapezius
Contains:
- Spinal accessory nerve
- Branches of cervical nerve inclucdng cervical plexus: the origin of the phrenic nerve
- Brachial Plexus
- Subclavian artery
