The trunk Flashcards
Sternocostal joint
- what articulates
- function
- sternum and ribs
- slightly mobile and flexible to allow ribcage to expand and contract for breathing
true ribs
1-7
- articulate via costocartilage directly with the sternum
false ribs
8-10
- do not articulate directly with the sternum
floating ribs
11-12
- no anterior connection
what are intervertebral joints seperated by
intervertebral discs
3 paired bones which make up the pelvic girdle
illium
ischium
pubis
what’s the pubic symphysis
midline joint between the 2 pubic bones
3 common structures of a vertebrae bone
- vertebral body (excluding c1)
- vertebral arch
- vertebral foramina (canal)
what’s part of the vertebral arch
- spinous process (excluding c1)
- transverse processes
- articular processes (superior and inferior)
Lordosis and kyphosis what part of the vertebrae is what
cervical - L
thoracic - k
lumbar - L
sacrum & coccyx - K
is the vertabral body front or back
front
are cervical vertebrae big or small
small
are lumbar vertebrae big or small
big
on the 2nd - 6th cervical certainly what’s the spinous process called
bifid process
on c2-6 does it have a big or small foramen (hole)
big
on the cervical what surrounds the transverse foramen
transverse process
on the cervical what is on the transverse process
anterior and posterior tubercles
does the 7th cervical have a bifid spinous process
no
does the 7th cervical have a transverse foramen
yes
what’s different about the cervial vertebrae
- spinous process is split into 2 (bifid process)
- big foramin (whole)
purpose of interverbal discs
shocker absorption and facilitate movement (as adds a bit of space between each bone)
what’s the structure of the intervertebral discs
- the outer casing is tough = called the annular fibrosis
- softer centre = called the nucleus pulposus
where does the intervertebral discs get its nutrients from
the vertebral bone above
degree of flexion at the spine
90 degrees
degree of extension at the spine
30
degree of lateral flexion at the spine left and right
30
degree of rotation at the spine - left and right
60
where is the anterior longtitudinal ligament located
front of the vertabrae - cervical to sacurm
where is the posterior longitudinal ligament located
goes down behind the vertebral body’s
where is the intertransverse ligament located
connects all transverse processes & limits lateral flexion
where is the ligament flavum ligament located
connects anterior surface of pedicals
where is the interspinous ligament located
between each spinous process
where is the supraspinous ligament located
goes over the back of the spine all the way to the top
whats the difference between inter and intra
inter = inbetween
intra = within
Sternoclavicular joint
- Bones articulating
- Type
- Movement
- Sternum (manubrium) and clavicle
- synovial, saddle
- elevation, depression, protraction, retraction, axial rotation of clavicle
sternocostal joint
- Bones articulating
- Type
- Movement
- sternum (body) and costal cartilage
- cartilaginous 1st rib, other ribs are plane/gliding
- slight gliding (for respiration)
costovertabral joint
- Bones articulating
- Type
- Movement
- body and the transverse processes
- plane/gliding
- rotation and gliding
costotransverse joint (thoracic?)
- Bones articulating
- Type
- Movement
- ribs and transverse process??
- plane/gliding
- rotation and gliding
Facet (Zygapophyseal) joint
- Bones articulating
- Type
- Movement
- joint between one superior articulating process with the inferior articulating process of the vertabrae above
- plane
- flexion, extension, lateral flexion and rotation
the facet joint is mobility in each one the same
no, mobility varies based on location
e.g. flexion extension is less in the thoracic area then cervical and lumbar
sacroiliac joint joint
- Bones articulating
- Type
- Movement
- sacrum and illium
- plane
- gliding and rotations
where is the Nuchal ligament and what is it function
- from external occipital protuberance connects to supraspinous ligament (back of head at neck)
Nuchal ligaments function
- attachment point for muscles
- limits hyperflexion of the neck
- supports the cervical spine
