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K Neck & Trunk
quiz
Question | Answer |
---|---|
the vertebral column as a whole has how many degrees of freedom? | 3 |
name 3 primary functions of the spinal column | provides pivot point for motion & support of the head at the cervical region, encases spinal cord |
they kyphotic curves are found in which areas of the spinal column? | thoracic, sacral |
the thoracic spinal area is characterized as having the most movement in which directions? | rotation, lateral bending |
the vertebral disk is designed with a gelatinous central portion called the _____ and a fibrocartilangenous outer portion called the _____ | nucleus pulposus, annulus fibrosus |
rotation of the spine takes place in the _____ plane | transverse |
what are unique characteristics of the C1 vertebra or atlas? | no vertebral body, no true spinous process |
the sternocleidomastoid (SCM) originates on the: | sternum & clavicle |
when the scalene mm work unilaterally, the right scalene mm would: | laterally flex to the right |
the innervation for the SCM mm is: | spinal accessory |
ligamentum nuchae takes the place of the ______ in the cervical spine | supraspinal ligament, interspinous ligament |
the action of the posterior subocciptal mm as a group is to cause rotation to: | same side |
what is the insertion of the scalene mm? | 1st & 2nd ribs |
name all the actions of the sternocleidomastoid mm. | flexion, ext, lateral bend, rotates opposite side |
the portion of the neural arch that is just posterior to the body is the: | pedicle |
name the origin of the external oblique mm. | lower 8 ribs laterally |
what is the main action of the transverse abdominis? | compression of the abdomen |
rotation of the torso in the supinge position toward the left is performed by the: | right external oblique and left internal oblique |
as a group, the erector spinae mm bilaterally: | extend the trunk |
as a group, the transversospinalis mm unilaterally: | rotate the trunk the opposite side |
the ligament that prevents excessive backward bending is the: | anterior longitudinal ligament |
the transverse foramen is found in what section of the vertebral column? | cervical |
when the quadratus lumborum acts in reverse action it causes: | hip hiking same said (elevates the pelvis) |
name the origin of the rectus abdominis | pubis |
indicate the layers of the posterior trunk mm. the most superficial should be labeled 1, second deepest 2, third 3. | 1. latissimus dorsi 2. erector spinae 3. transversospinalis |
what is another name for the ondontoid process? | axial node |
what anatomical features dictate the type/degree of motion that occurs at each spinal level-cervical vs thoracic vs lumbar? | |
T or F the facet joints of the spine do not contain a synovial capsule. | false |
what are the names of the 3 mm that make up the erector spinae? | spinalis, iliocostalis, longissimus |
how many mm make up the transversospinalis group? | 3 |