Final Exam Flashcards
Name the muscles in the transversospinalis group, in order of superficial to deep
Semispinalis
Multifidi
Rotatores
Name the muscles in the Erector Spinae group
Spinalis
Longissimus
Iliocostalis
What is the origin of the Quadratus Lumborum?
Iliolumbar ligament, iliac crest
What is the origin of the Serratus Posterior Superior?
SP’s of C7-T3
Which muscle inserts on the mastoid process (of the temporal bone) and the lateral part of the superior nuchal line?
Splenius Capitis
Which muscle has an origin on the temporal fossa?
Temporalis
What is/are the origin(s) of the SCM?
Sternal head: Manubrium of the sternum
Clavicular head: Medial clavicle
What is the origin of the Rotatores?
TP of L1-C3
Which muscle has its origin on the sacrum and the TP of L1-C4?
Multifidi
What is the insertion of the Serratus Posterior Inferior muscle?
Posterior surface of ribs 9-12
What is the origin of the Splenius Capitis?
Nuchal ligament (inferior aspect) SP of C7-T4
What is the origin of the Splenius Cervicis?
SP of T3-T6
What is the origin of the Serratus Posterior Inferior?
SP of T12-L3
What is the origin of Longissimus?
- Common tendon (TCA)
2. TP of T5-T1
What is the origin of Iliocostalis?
- Common tendon (TCA)
2. posterior ribs 1-12
What is the origin of Spinalis?
- SP of L2-lower thoracic
2. nuchal ligament and SP of C7
What is the origin of the Semispinalis?
TP of T10-C4
What is the origin of the Masseter?
Zygomatic arch (includes maxilla, zygoma, temporal bones)
What is the origin of the Scalenes?
TP of C2-C7
(Anterior= C3-C6 Medial= C2-C7 Posterior= C4-6)
What is the insertion of Quadratus Lumborum?
12th rib
TP of L1-L4
What is the insertion of Splenius Cervicis?
TP of C1-C3
What is the insertion of the Multifidi?
SP of L1-C2
What is the origin of Multifidi?
Sacrum
TP of L1-C4
What is the insertion of Rotatores?
SP of L1-C2
What is the insertion of Serratus Posterior Superior?
Posterior surface of 2nd-5th ribs
What is the insertion of Temporalis?
Coronoid process of the mandible
What is the insertion of the SCM?
Mastoid process of the temporal bone
Lateral superior nuchal line of the occiput
What is the origin of the Temporalis?
Temporal fossa (includes frontal, parietal, temporal, and sphenoid greater wing)
What is the insertion of the Scalenes?
1st rib (anterior and middle) 2nd rib (posterior)
What are the insertions of Spinalis?
- SP of the upper thoracic
- SP of C7-C2
(*Note: Has fibers that blend with the semispinalis (capitis) to extend muscle all the way to the occiput)
What are the insertions of Longissimus?
- Ribs 3-12 & TPs of T1-T12
- TPs of C1-C7
- Mastoid process
What are the insertions of Iliocostalis?
- TPs of L1-L3 and posterior ribs 6-12
- posterior ribs 1-6
- TPs of lower cervical
What is the insertion of the Masseter?
Angle & ramus of the mandible
What are the insertions of Semispinalis?
- SP of T7-C2
2. nuchal lines on the skull
Which muscle inserts on the 12th rib and the TPs of L1-L4?
Quadratus Lumborum
Which muscle has an insertion on the posterior surface of the 2nd-5th ribs?
Serratus Posterior Superior
What is the insertion of Splenius Capitis?
Mastoid process (of temporal bone) and lateral part of superior nuchal line
Which muscle inserts on ribs 3-12 and the TPs of T1-T12, the TPs of C1-C7, and the mastoid process?
Longissimus
Which muscle has an origin on the zygomatic arch?
Masseter
Which muscle has an insertion on the coronoid process of the mandible?
Temporalis
Which muscle has an insertion on the angle and ramus of the mandible?
Masseter
Which muscle has an insertion on the mastoid process of the temporal bone and the lateral superior nuchal line of the occiput?
SCM
Which muscle inserts on the 1st and 2nd ribs?
The Scalenes
Which muscle inserts on the posterior surface of ribs 9-12?
Serratus Posterior Inferior
Which muscle inserts on the SP of the upper thoracic and the SP of C7-C2?
Spinalis
Which muscle originates on the iliolumbar ligament and the iliac crest?
Quadratus Lumborum
Which muscle has its origin on the SP of L2 through the lower thoracic AND on the nuchal ligament plus SP C7?
Spinalis
Which muscle has an origin on 1) the TCA and 2) the TPs of T5-T1?
Longissimus
Which muscle has an origin on 1) the TCA and 2) posterior ribs 1-12?
Iliocostalis
Which muscle inserts on 1) the TPs of L1-L3, 2) posterior ribs 1-6, and 3) TPs of the lower cervical?
Iliocostalis
Which muscle has its origin on the TP of L1-C3 and inserts on the SP of L1-C2?
Rotatores
Which muscle has an origin on the sacrum and on the TP of L1-C4 and inserts on the SP of L1-C2?
Multifidi
Which muscle has an origin on the TP of T10-C4 and inserts on the SP of T7-C2 and the nuchal lines on the skull?
Semispinalis
Which muscle has an origin on the SP of T3-T6 and inserts on the TP of C1-C3?
Splenius Cervicis
Which muscle has an origin on the nuchal ligament (inferior aspect) and the SP of C7-T4 and inserts on the mastoid process and the lateral part of the superior nuchal line?
Splenius capitis
What are the actions of Splenius Capitis?
Extension of head/neck
Rotates head and neck (ipsilateral)
Lateral flexion of the neck (ipsilateral)
What are the actions of Splenius Cervicis?
Extension of head/neck
Rotation of neck & neck (ipsilateral)
Lateral flexion of the neck (ipsilateral)
What is the action of Serratus Posterior Superior?
Elevates ribs during inhalation
What is the action of Serratus Posterior Inferior?
depress ribs during exhalation
What is the action of Spinalis?
Extension of the spine
What is the action of Longissimus?
Extend
Laterally flex
rotate the vertebral column (ipsilateral)
What are the actions of Iliocostalis?
Ipsilateral extension
rotation
lateral flexion of the spine (strongest!)
What is the action of the Semispinalis?
extension of the spine, especially neck
What are the actions of the Multifidi?
Unilaterally: contralateral rotation of the spine
Bilaterally: extend the spine
What is the action of the rotatores?
Contralateral rotation of the vertebrae above
Which muscle in the transversospinalis group spans 2-4 vertebrae?
Multifidi
What are the actions of Quadratus Lumborum?
Laterally flex the spine (ipsilateral)
Assists in extension of the spine
Lifts the posterior iliac crest superiorly (hip-hiker)
Fixes the ribs in inhalation and forced exhalation
What are the actions of Temporalis?
Elevation of the mandible
Retraction of the mandible
What are the actions of the Masseter?
Elevation of the mandible
Protrustion of the mandible
side to side movements of chewing
What are the actions of the SCM?
Unilaterally: lateral flexion to same side, rotation to opposite side
Bilaterally: flexes neck
Also:
draws head ventrally and elevates chin, assists in inhalation
What are the actions of the Scalenes?
Unilaterally: lateral flexion to the same side
Bilaterally: neck flexion
Also- assists inspiration by raising ribs 1 & 2