Muscles of the neck
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Origin: STERNOCLEIDOMASTOID (SCM)[a]This muscle originates on the manubrium/sternum and the medial, superior clavicle.
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Insertion: STERNOCLEIDOMASTOID (SCM)[a]This muscle inserts on the mastoid process/temporal bone and occipital ridge.
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Origin: SCALENUS ANTERIOR, MEDIUS[a]This muscle originates on the transverse processes of C2-C7.
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Insertion: SCALENUS ANTERIOR, MEDIUS[a]This muscle inserts on R1.
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Origin: SCALENUS POSTERIOR[a]This muscle originates on the transverse processes of C2-C7.
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Insertion: SCALENUS POSTERIOR[a]This muscle inserts on R2.
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Origin: SPLENIUS CAPITIS[a]This muscle originates on the nuchal ligament, spinous processes (C3-T3).
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Insertion: SPLENIUS CAPITIS[a]This muscle inserts on the mastoid process/temporal bone (deep to SCM).
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Origin: SPLENIUS CERVICIS[a]This muscle originates on the upper thoracic spinous processes (T3-T6).
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Insertion: SPLENIUS CERVICIS[a]This muscle inserts on the transverse processes C1-C3.
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Action: STERNOCLEIDOMASTOID in unilateral contraction[a]This muscle in unilateral contraction does lateral flexion of the head and rotation to the opposite side .
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Action: scalenes in bilateral contraction[a]This muscle in bilateral contraction does neck flexion or elevation of R1 and R2 if the neck is fixed.
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Action: scalenes in unilateral contraction[a]This muscle in unilateral contraction does lateral flexion of the neck and rotation to the opposite side.
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Action: SPLENIUS CAPITIS in bilatereal contraction[a]This muscle in bilateral contraction does extension/hyperextension of the head.
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Action: SPLENIUS CAPITIS in unilateral contraction[a]This muscle in unilateral contraction does rotation of the head to the same side and lateral flexion.
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Action: SPLENIUS Cervicis in bilatereal contraction[a]This muscle in bilatereal contraction does extension/hyperextension of the neck.
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Action: SPLENIUS Cervicis in unilatereal contraction[a]This muscle in unilateral contraction does rotation of the neck to the same side.
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List the muscles of neck and head extension.[a]bilateral contraction of upper traps, levator scap, splenius capitis and cervicis, spinalis, longissimus, semispinalis, interspinalis, suboccipital group, multifidus, intertransversarii, rotatores.
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List the muscles of neck and head in lateral flexion.[a] unilateral contraction of SCM, scalenes, upper traps, levator scap, splenius capitis and servicis, spinalis, longissimus, suboccipital group, intertransversarii.
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List the muscles of neck and head rotation to the RIGHT.[a] LEFT SCM, upper traps, anterior scalene, transversospinalis group; RIGHT splenius muscles, levator scapula.
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Action: STERNOCLEIDOMASTOID (bilateral contraction)[a]This muscle does neck and head flexion. (It can also do head extention on C1)
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In which movement are these muscles synergists: scalenes, SCM[a] neck and head flexion.
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Muscles of the neck reversed
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Which muscle does neck and head flexion?[a] STERNOCLEIDOMASTOID (bilateral contraction)
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In which movement are these muscles synergists: LEFT SCM, upper traps, anterior scalene, transversospinalis group; RIGHT splenius muscles, levator scapula?[a] neck and head rotation to the right.
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In which movement are these muscles synergists: unilateral contraction of SCM, scalenes, upper traps, levator scap, splenius capitis and servicis, spinalis, longissimus, suboccipital group, intertransversarii?[a]neck and head lateral flexion.
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In which movement are these muscles synergists: bilateral contraction of upper traps, levator scap, splenius capitis and cervicis, spinalis, longissimus, semispinalis, interspinalis, suboccipital group, multifidus, intertransversarii, rotatores?[a] neck and head extension.
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Which muscle inserts on the transverse processes C1-C3?[a] SPLENIUS CERVICIS
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Which muscle originates on the upper thoracic spinous processes (T3-T6)?[a] SPLENIUS CERVICIS
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Which muscle inserts on the mastoid process/temporal bone (deep to SCM)?[a] SPLENIUS CAPITIS
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Which muscle originates on the nuchal ligament, spinous processes (C3-T3)?[a] SPLENIUS CAPITIS
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Which muscle inserts on R2?[a] SCALENUS POSTERIOR
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Which muscle originates on the transverse processes of C2-C7?[a] SCALENUS POSTERIOR
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Which muscle inserts on R1?[a] SCALENUS ANTERIOR, MEDIUS
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Which muscle originates on the transverse processes of C2-C7?[a] SCALENUS ANTERIOR, MEDIUS
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Which muscle inserts on the mastoid process/temporal bone and occipital ridge?[a] STERNOCLEIDOMASTOID (SCM)
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Which muscle originates on the manubrium/sternum and the medial, superior clavicle?[a] STERNOCLEIDOMASTOID (SCM)
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List the muscles of neck and head flexion.[a] scalenes, SCM
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Which muscle in unilateral contraction does rotation of the neck to the same side and lateral flexion?[a] SPLENIUS Cervicis
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Which muscle in bilatereal contraction does extension/hyperextension of the neck but not the head?[a] SPLENIUS Cervicis
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Which muscle in unilateral contraction does rotation of the head to the same side and lateral flexion?[a] SPLENIUS CAPITIS
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Which muscle in bilatereal contraction does extension/hyperextension of the head?[a] SPLENIUS CAPITIS
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Which muscles in unilateral contraction do lateral flexion of the neck and rotation to the opposite side?[a] scalenes and SCM
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Which muscle in bilateral contraction does neck flexion or elevation of R1 and R2 if the neck is fixed?[a] scalenes
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