Pathophysiology IV Flashcards
tetest 1 , thoracic and lumbar spine
How many vertebrae and articulations in the T spine?
12 vertebrae, each one in involved in six articulations (72 articulations total)
Is stability or mobility prioritized in the T spine?
protection of the thoracic viscera is primary so stability over mobility
What creates the relative stability of the T spine over the C spine?
The rib cage and its many articulations.
The reduced mobility of the T spine has what 3 primary effects?
- Influences the motion available in the spine and shoulder girdle
- Increase potential postural impairments
- Provide important weight bearing mechanism for the spine
Flexion and extension is limited in the upper T spine by what structures?
Ligaments
T or F?
Good pelvic movement is integral to T spine function.
True! Abnormal pelvic tilting can cause issues
In the T spine, what is a sagittal plane deformity c increased anterior concavity called?
Kyphosis
The difference between a dowagers hump, humpback, and round back is dependent on what?
The location of the anterior concavity
Motion in all cardinal planes is possible in the T spine, however the degree of movement is dependent on what?
The segmental level in which movement is occurring
Flexion and extension is limited in upper thoracic due to what?
The facet orientation being closer to the frontal plane
Flexion in spine is limited by what major ligament?
Posterior longitudinal ligament
Extension coupled with posterior translation is limited by what processes?
articular and spinous processes
During respiration, the ribs function as ____
levers
Little movement at the rib ____ produces a large degree of movement in the ____
rib neck, rib shaft
What are the accessory respiration muscles?
scalenes, SCM, pectoralis minor
What is the chief movement during respiration at the neck of ribs 1-6?
Rotation of the neck of ribs 1-6
In ribs 7-10, what is the principal movement during inspiration?
Upward, backward, and medial
*reverse happens during expiration
The anterior ends of ribs are lower than posterior. So when they elevate, what happens?
They move superiorly while rib neck drops inferiorly.
During respiration, ribs 1-10 experiences what movement?
Anterior elevation, like a pump handle
Middle and lower ribs move like a bucket handle during respiration. What direction is this movement?
Lateral elevation
The false ribs have movement during respiration that is similar to the pincer motion of a ____
caliper
T or F?
Good mobility of the pelvis is integral to the thoracic spine
True! excessive tilting can cause compensatory issues.
Postural Dysfunction: Abnormal Pelvic Tilting
- Posterior pelvic tilting in sitting
- Anterior pelvic tilting in standing
What does the following describe? Increase in lumbar and T spine flexion, forward head posture
Posterior pelvic tilting in the sitting position
What does the following describe? Trunk leans backward and overstretches the rectus abdominis and pulling forward of shoulders
Anterior pelvic tilt in standing
What is kyphosis?
Sagittal plane deformity involving an increased anterior concavity
What is sagittal plane deformity involving an increased anterior concavity?
Kyphosis
A kyphosis in the upper dorsal region, often caused by postmenopausal osteoporosis or long term corticosteroid therapy is known as:
Dowagers Hump
A localized, sharp posterior angulation produced by anterior wedging of 1 or 2 thoracic vertebrae also called a gibbus, is more commonly known as
Hump back
Causes of humpback:
fracture, congenital anomaly of spine, result of infection like TB
Three sternal deformities:
- Barrel chest
- Pigeon chest
- Funnel chest
Barrel chest
forward and upward projecting sternum, increases anteroposterior diameter. Results in respiratory difficulty, stretching of intercostal and anterior chest mms
Pigeon chest
Sternum grows outwards and downwards. Lengthens upper abdominal mms and shortens upper intercostals
Funnel chest
Pectus excavatum
Posterior projection of sternum at the xiphoid process. Respiratory and cardiac abnormalities
Intercostal mm strains are typically caused by
trauma after excessive muscular activity
Scoliosis
Rotoscoliosis is more correct term. Spine curves and side flexes. Rotation is towards the convexity. Rib Hump occurs on convex side of the curve.
Non-structural scoliosis
Not bony anomaly. Postural, LLD, or hip contractures in nature
Dowagers Hump
abnormal curvature in the upper thoracic spine *often caused by osteoporosis
Gibbus deformity
structural kyphosis that is a particularly sharp, angular curve
Lordosis (swayback)
abnoraml, inward curvature of a portion of the lower portion of the spine
In scoliosis, does the rib humb occur on the convex or concave side of the curve?
convex
A lateral curvature of the spine, which affects more females than males and can occur at any age, is known as what?
Scoliosis
Structural scoliosis
Irreversible lateral curvature of the spine with fixed rotation of vertebrae. affects girls more than boys during adolescence, idiopathic
Functional scoliosis
a structurally normal spine that appears to have a lateral curve