Items tagged “spine”
761 results found
Article
Splenius capitis muscle
The splenius capitis is a strap-like muscles that, along with the splenius cervicis, comprise the superficial layer of intrinsic back muscles.
Gross anatomy
Attachments
origin: ligamentum nuchae, and the tips of the spinous processes and associated supraspinous ligaments of C7 and the upper t...
Case
Alar and cruciform ligament anatomy
Published
16 May 2016
22% complete
Diagram
Article
Splenius cervicis muscle
The splenius cervicis is part of the superficial layer of the intrinsic back muscles. It is one of the two muscles in this group, the other being the splenius capitis.
Summary
origin: spinous processes of T3-T6
insertion: transverse processes of C1-C3
innervation: dorsal rami of the lower ce...
Article
Erector spinae group
The erector spinae group is the intermediate layer of the intrinsic muscles of the back. This group is made of three subgroups, with the group divisions occurring by location.
spinalis subgroup is the most medial
longissimus subgroup is between spinalis and iliocostalis
iliocostalis subgroup ...
Article
Transversospinalis muscle group
The transversospinalis muscle group is the deep layer of the intrinsic back muscles. These muscles lie between the transverse and spinous processes and are grouped by length of the fascicles, as well as region covered. The groups are rotatores, multifidus, and semispinalis.
Gross anatomy
Rotat...
Case
Spinal compression fracture: acute vs old
Published
29 May 2016
32% complete
Diagram
Case
Perineural cyst
Published
01 Jul 2016
77% complete
MRI
Article
Anterior corticospinal tract
The anterior corticospinal tract is formed at the level of the of the medullary pyramids, where the majority (90%) of descending corticospinal tract fibers decussate to form the lateral corticospinal tract. The majority of the remaining non-decussating 10% of fibers form the much smaller anterio...
Article
Lateral corticospinal tract
The lateral corticospinal tract is formed at the level of the of the medullary pyramids when the majority (90%) of descending corticospinal tract fibers decussate. The remaining 10% do not decussate and form the much smaller anterior corticospinal tract. A few non-decussated fibers may enter the...
Article
Spinocerebellar tract
The spinocerebellar tracts are afferent neurons that convey proprioceptive data from the spinal cord to the cerebellum. There are anterior and posterior spinocerebellar tracts, also eponymously named the Gowers tract and Flechsig tract respectively. Both the anterior and posterior spinocerebella...
Article
Corticorubral tract
The corticorubral tract contains neurons that connect the primary motor and sensory areas to the red nucleus. The rubrospinal tract then descends through the spinal cord.
The tract is thought to excite flexor muscles and inhibit extensor muscles.
Gross anatomy
Central connections
The corti...
Case
Cervical fracture dislocation C5-C6
Published
22 Aug 2016
85% complete
X-ray
Article
Rubrospinal tract
The rubrospinal tract contains neurons that carry signals from the corticorubral tract. The tract is thought to excite flexor muscles and inhibit extensor muscles.
Gross anatomy
Central connections
The magnocellular portion of the red nucleus gives rise to the rubrospinal tract. It decussates...
Article
Lateral spinothalamic tract
The lateral spinothalamic tract, also known as the lateral spinothalamic fasciculus, is an ascending pathway located anterolaterally within the peripheral white matter of the spinal cord. It is primarily responsible for transmitting pain and temperature as well as coarse touch.
The anterior sp...
Article
Anterior spinothalamic tract
The anterior spinothalamic tract, also known as the ventral spinothalamic fasciculus, is an ascending pathway located anteriorly within the spinal cord, primarily responsible for transmitting coarse touch and pressure.
The lateral spinothalamic tract (discussed separately), in contrast, primar...
Case
Spondylodiscitis
Published
08 Jan 2017
77% complete
MRI
Case
Dorsal thoracic arachnoid web
Published
18 Nov 2016
32% complete
Diagram
Case
Variant anatomy of the odontoid process of C2
Published
13 Jan 2017
22% complete
Diagram
Case
Scoliosis
Published
05 Feb 2017
91% complete
X-ray
Article
Corpectomy
Corpectomy refers to the removal of one or more vertebral bodies and is followed by spinal fusion.
Indication
compressive myelopathy secondary to, for example, retrovertebral hypertrophic osteoarthritis, tumor, infection, severe trauma
Contraindications
multilevel corpectomy in patients wit...