Compartments Of The Neck Flashcards
Destination of things passing through ANTERIOR TRIANGLE
Head
Neck
Thorax
What is the anterior triangle formed by?
Midline
Angle of the jaw
Anterior Part of Sternocleidomastoid
Destination of POSTERIOR COMPARTMENT of neck?
Upper limb
and posterior part of scapula
What is the posterior triangle formed by?
Posterior part of sternocleidomastoid
Anterior part of trapezius
Skeleton contents of cervical vertebrae
7 cervical vertebrae
Hyoid bone
C1
“Atlas”
* no vertebral body
* no spinous process
located at base of skull (at the level of the roof of mouth)
C2
“Axis”
* Odontoid Process = Dens
(this is fused to vertebral body because of the missing vertebral body in C1)
(tooth like projection that becomes pivot point around which head rotates)
Atlantoaxial Joint
“No” joint
between C1 and C2
C3-C6
typical cervical vertebrae
- foramina
- transverse process (for transmittance of vertebral arteries and veins)
C7
long spinous process
Hyoid bone
- anterior triangle
- C3 level at the angle between mandible and thyroid cartilage
- attached to thyroid cartilage via thyrohyoid membrane
- does not articulate with any other bone
- important for swallowing and phonation
Cartilages of Neck
thyroid
cricoids
arytenoids
tracheal
Laryngeal prominence
o “Adam’s Apple”
o Thyroid cartilage
o Palpable in middle of neck
o Originally, 2 flat plates
o Testosterone -> makes it more prominent during puberty -> lengthens vocal cord -> deep voice
o Estrogen -> keeps it flat
o Anterior part is prominent
o Posterior part -> does not have closed ring
