69 Questions
Which muscle is responsible for the extension of the neck?
Splenius Capitis and Cervicis
Which muscle is the chief extensor of the vertebral column?
Erector Spinae
Which muscle is responsible for the extension of the atlanto-occipital joint?
Rectus capitis posterior major and minor
Which muscle is responsible for the rotation of the atlanto-axial joint?
Obliquus muscles
Which muscle is responsible for the extension of the head and upper neck?
Sternocleidomastoid
Which muscle is responsible for the flexion of the cervical spine (chin to chest)?
Longus coli and capitis
Which muscle is deep to the rhomboids and connects the vertebral column to the ribs?
Serratus posterior superior
Which muscle is deep to the latissimus dorsi and connects the vertebral column to the ribs?
Serratus posterior inferior
Which muscle group is responsible for extension, rotation, and stabilization of the vertebral column?
Transversospinalis Group
The intertransversarii muscles connect adjacent TVP's and provide ______
stabilization
The levatores costarum muscles connect the ribs to the TVP's and assist in ______
respiration
The thoracolumbar fascia is a deep fascia that encloses the intrinsic muscles of the spine and extends from the pelvis to the ______
cranium
The suboccipital region contains the rectus capitis posterior muscles, which are responsible for the ______ of the atlanto-occipital joint
extension
Which muscle group is responsible for producing and controlling limb movements in the back region?
Extrinsic back muscles
Which muscle receives its motor fibers from the spinal accessory nerve (CN XI)?
Trapezius
Which muscle lies deep to the rhomboid muscles and is commonly designated as a superficial respiratory muscle?
Serratus posterior superior
Which muscle group is responsible for extension, rotation, and stabilization of the vertebral column?
Deep Layer: Transversospinalis Group
Which muscle is responsible for the extension of the neck?
Splenius Cervicis and Capitis
Which muscle is responsible for the flexion of the cervical spine (chin to chest)?
Longus coli and capitis
Which muscle is the chief extensor of the vertebral column?
Erector Spinae
Which muscle group is responsible for stabilization and proprioception of the vertebral column?
Interspinales
Which muscle group is responsible for stabilization and lateral flexion of the vertebral column?
Intertransversarii
Which muscle group assists with respiration by elevating the ribs and contributes to lateral flexion of the vertebral column?
Levatores costarum
Which muscle group is responsible for extension of the atlanto-occipital joint and rotation of the atlanto-axial joint?
Suboccipital muscles
What are the four main superficial extrinsic back muscles?
a. Trapezius b. Latissimus dorsi c. Levator scapulae d. Rhomboids
Intermediate extrinsic back muscles include _____________ and ____________
Roles of the superficial extrinsic back muscles include producing and controlling ________________ and connecting the vertebral column with upper limbs
Intermediate extrinsic back muscles are innervated by:
intercostal nerves
Splenius capitus extends from the __________________ to the mastoid process and occipital bone
Splenius cervicis extends from ___________ to _____________
Splenius capitus and cervicis function to:
all of the above
What are the three muscles in the erector spinae group?
iliocostalis, longissimus, spinalis
Iliocostalis attaches from the ________ to cervical TVPs
Longissimus extends from TVPs in the thoracic and cervical region to the ______________
Spinalis extends between ____________ in thoracic and cervical regions
Actions of the erector spinae include (3):
Semispinalis extends from ______ to _____
What are the main actions of semispinalis?
extension of head, cervical and thoracic spine contralateral rotation
Multifidus and rotatores attach from _______ to ________
TVPs to SPs
The ____________ of the segmental back muscles connects adjacent SPs
The ___________ of the segmental back muscles connect adjacent TVPs
The _____________ of the segmental muscles of the back connect ribs to TVPs
Respiration in elevation of ribs (rib to TVP) and lateral flexion of column (TVP closer to ribs), along with proprioception, are actions of which muscle?
levatores costarum
Stabilization in holding TVPs stable, lateral flexion and proprioception are actions of which muscle?
intertransversarii
Extension (holding SPs up), small rotation and proprioception are actions of which muscles?
interspinalis
Superficial intrinsic back muscles in the spinotransverse group include which muscles?
splenius capitus and splenius cervicis
What muscles are included in the intermediate intrinsic (sacropsinalis) back muscles?
erector spinae - iliocostalis, longissimus, spinalis
The deep layer (transversospinalis) intrinsic back muscles includes:
semispinalis, multifidus, rotatores
The segmental muscles (minor deep muscles) of the back include:
intertransversarii, interspinales and levatores costarum
What are the two muscles in the suboccipital region?
rectus capitis posterior (major and minor) and obliquus (inferior and superior)
The muscles of the suboccipital region function to ____________________________ and ___________________
Superficial anterior neck muscles include ___________ and _____________
The platysma attaches from the _______________ to the __________ and skin of the lower face
The platysma is innervated by:
CN VII - facial nerve
What are the main actions of the platysma?
depress and draws lower lip inferiorly depress the mandible at TMJ
The sternocleidomastoid extends from the _______________ and the manubrium of the sternum to the _______________ and lateral 1/2 of superior nuchal line of occipital bone
medial 1/3 clavicle; mastoid process of temporal bone
The sternocleidomastoid muscle is innervated by:
CN XI - spinal accessory nerve
Unilateral contraction of the sternocleidomastoid process results in _____________ and ______________ of the head and neck
Bilateral contraction of the sternocleidomastoid muscle results in _____________ of the head/upper neck and ___________ of the lower neck
Longus capitus extends from the _____________ to anterior tubercles of __________-
Longus coli extends from the ___________, C1-C3 bodies and C3-C6 bodies to attach to bodies of C5-T3 and _______ of C3-C5
The two main actions of the longus capitis and longus coli muscles are _____________ of the cervical spine and ___________________(a little)
Rectus capitis anterior extends from the _________ to the anterior surface of lateral masses of the atlas
Rectus capitis lateralis extends from the ___________ of the occipital bone to the _________ of the atlas
The middle scalene and posterior scalene muscles extend from the ______ of C5-C7 to the ______ (middle) and ________ (posterior) ribs
Anterior scalene extends from the ______ of C3-C6 to the ________
The scalene muscles are responsible for flexing the neck _______
The anterior and middle scalene muscles help to ________________ during forced inspiration
The posterior scalene muscle helps to ________ during forced inspiration
Test your knowledge on the back and anterior neck muscles, muscle attachment/location, innervation, and main actions/roles. This quiz covers the superficial extrinsic back muscles including the Trapezius, Latissimus dorsi, Levator scapulae, and Rhomboids. Get ready to identify motor fibers, understand limb movements, and connect vertebral columns.
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