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30 Cards in this Set
- Front
- Back
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Which movements are allowed at the atlanto-occipital joints?
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Nodding movements of the head.
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Which movements are allowed at the atlanto-axial joints?
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Rotary movements of the head (when saying no)
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Owing to the length of its spine, what is C7 called?
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Vertebra prominens.
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Why is C1 vertebra atypical?
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It has no body or spine.
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What is the odontoid process?
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Formed by fusion of the bodies of C1 vertebra (atlas) and C2 (axis)
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The foramen transversaria are a feature unique to the cervical vertebrae. What do these foraminae transmit?
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Vertebral vessels
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Which muscle attaches to the anterior tubercles?
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Scalenus anterior
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What is the grooved bar of bone which unites anterior and posterior tubercles lateral to the foramen transversarium?
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costotransverse bar or lamella.
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What is a cervical rib?
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It is an abnormally large costotranverse bar of the seventh cervical vertebra.
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cerival ribs are asymptomatic, but they can cause problems if they compress which structures passing over the first rib to reach the upper limb?
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Subclavian artery and trunks of the brachial plexus.
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What lies in the groove of the costotranverse bar?
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Ventral ramus of the corresponding cervical spinal nerve.
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What are the vertebral arteries a branch of?
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First part of subclavian artery in the root of the neck.
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Which cervical vertebrae contain the vertebral vessels?
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C1 - C6 (C7 does not contain the vertebral arteries.)
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When the vertebral arteries enter the skull via foramen magnum, which fossa do they enter?
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Posterior cranial fossa
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What are the two branches of a mixed spinal nerve?
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Smaller dorsal ramus and larger ventral ramus
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What do the dorsal rami supply?
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Supply muscles of the vertebral column (MOTOR) and strip of skin over and just to either side of the vertebral column (SENSORY).
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To which structures do the upper fibres of trapezius attach?
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Skull and cervical spinous processes and lateral third of the clavicle.
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Where do the middle and lower fibres attach?
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Scapula
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Which are the six muscles in the floor of the posterior triangle?
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Levator Scapulae, semispinalis capitis, scalenus anterior/medius/posterior, splenius capitis.
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What is the supply of the infrahyoid muscles?
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ansa cervicalis
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What is the ansa cervicalis?
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Ventral rami of C1,C2 and C3.
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Which structures emerge on the floor of the posterior triangle behind scalenus anterior?
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trunks of brachial plexus and subclavian artery.
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Which nerves supply the skin over the back of the neck?
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Dorsal rami of C3,C4 and C5.
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What is the lateral boundary of the anterior triangle?
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anterior border of sternocleidomastoid
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What is the superior boundary of the anterior triangle?
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Lower border of the mandible
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What is the medial boundary?
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midline of the neck.
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Which two muscle are deep to sternohyoid?
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Thyrohyoid and Sternothyroid
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Which part of mylohyoid muscle attaches to the hyoid bone?
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posterior fibres.
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what ties down the intermediate tendon of digastric to the hyoid bone?
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fascial loop
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Where does the posterior belly of digastric attach?
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Mastoid notch (medial to mastoid process)
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