Muscles of the functional cervical region Flashcards
what are the superficial and lateral muscles of the neck?
- Sternocleidomastoid (SCM) ( has two heads, sternal and clavicle )
- Trapezium
- Platysma
Sternocleidomastoid
PA
DA
N/S
A
Sternal head: manubrium
Clavicle head: medial 1/3 of clavicle
mastoid process of the temporal bone
Accessory nerve XI and spinal nerve C2/3 (pain and proprioception)
Bilaterally: anterior translation of the head
Unilaterally: ipsilateral side bending, contralateral rotation
Trapezium
PA
DA
N/S
A
Medial 1/3 of the sup nuchal line, EOP (external occipital protrude), nuchal ligament, SP’s C7 to T12 vertebrae
Lat 1/3 of clavicle, acromion and spine of the scapular
Accessory nerve XI motor and C3/4 for sensory
what are the suprahyoid muscles and their attachments
- Mylohyoid
- Geniohyoid
the all attach from the mandible to the hyoid
- Stylohyoid
attaches from the styloid process of the temporal bone to the hyoid
- Digastric
means two bellies so two attachments, the mandible and the mastoid process to the hyoid bone
What are the infrahyoid muscles and their attachments
- Sternohyoid
From the sternum to hyoid - Omohyoid
from the scapular tp hyoid - Sternothyroid
from the sternum deep to the thyroid cartilage - Thyrhyoid
Thyroid cartilage to the thyroid bone
What are the anterior muscles in the neck
- Longus colli - long muscle of the neck
- Longus capitis - long muscle of the head
- Rectus capitis anterior
- Anterior scalene
Actions is flexing the neck
What are the lateral muscles of the neck
- Rectus capitis lateralis
- Splenius capitis
- Middle scalene
- Posterior scalene
- Levator scapulae
Middle scalene
PA
DA
N/S
A
- Posterior tubercles of Tp’s of C5-7
- 1st rib, posterior to the subclavian groove
- Side bending of the neck, elevation of 1st rib during forced inspiration
Posterior Scalene
PA
DA
A
- Posterior tubercles of Tp’s C5-7
- External border of 2nd rib
- Side bending of the neck, elevation of 2nd rib during forced inspiration
Levator scapular
PA
DA
A
- Post tubercles of Tp C1- 4 vertebrae
- Medial border of the scapular, superior to the spine of the scapula
- Elevates scapula and downwardly rotates it
What are the suboccipital muscles and triangle
- Rectus capitis posterior major
- Rectus capitis posterior minor
- Obliquus capitis inferior
- Obliquus capitits superior
what are the bondaries of the suboccipital triangle
Superiormedially border - Rectus capitis posterior major
Superlateral border - Obliquus capitis superior
Inferolateral border - Obliquus capitis inferior
Floor - Posterior antlanto - occipital membrane and posterior arch of vertebra C1
Roof - Semispinalis capitis
Contents - Vertebral artery and suboccipital vein
