Inominate Flashcards
(51 cards)
Important Role of the Pelvis
- Body support
- Locomotion
- Maintain stability by. distributing the effects of mass, gravity. and mechanical forces.
How is weight from upper and lower body direct?
- weight of the. upper. body is directed through the spine and axial skeleton downward
- and resistance to forces from below, forming a balance at the pelvis.
pelvis cradles what
GI system
GU system
How is the pelvis imporant in lymphatics and vascular shit?
Contains the vascular and lymphatic structures for all of the pelvic contents and circulatory pathways for structures below.
What are significant structures that influence LE circulation and drainage?
pelvic diaphragm
inguinal. area
Pelvis maintains a. critical role in:
- Biochemical function and balance; it is the foundation for body support and locomotion
- Reproduction (has our. genital structures)
- Elimination via out GI and GU syste,
- Vascular and lymphatic functions
Anatomy. of innominate
- Ilium
- Pubis
- Ischium
Acetabulum is made up of what?
bone from 3 different. ossification centers
What aer the joints of the pelvis?
SI,
Acetabulum (hip joint)
pubic symphysis
“True” ligaments
go from bone to bone
◦“Accessory” ligaments
attach at another
- ligament,
- tendon
- fascia
Characteristics of of ligaments (4)
- Limit abnormal or excessive movements at a joint
- Permit normal motion
- Slightly elastic
- Prevent excessive movement as part of a reflex response
Major pelvic L located anterior
- Sacrospinous (sacrum -> ischial spine) -> blends in with sacrotuberous -> forms part of origin of coccygeus m.
- Iliolumbar
- Anterior sacroilac
- Inguinal L (ASIS -> superior pubic rami)
Major pelvic L located posterior
- Sacrotuberous (sacrum -> ischial tuberosity)
- Posterior sacroiliac L
Lumbosacral Ligaments (4)
- Iliolumbar
- Sacrospinous
- Sacrotuberous
- Posterior sacroiliac L.
name that L
- glut max, tendon of the biceps formis attaches
- connects with fascia of the pelvis.
glut max atta
Fx of iliolumbar L
Stabilizes L5
- Stabilize anterior mtion of the lower lumbar spine
- restrict anterior and rotary motion of L5
- blends in with upper part of anterior SI L
It gives origin to the internal oblique and transversus abdominis muscles.
name that L
inguinal L
What. prevents the sacrum from popping out anteriorly?
Anterior SI L
major bond between the bones, filling the irregular space posterosuperior to the joint.
• Covered posteriorly by the posterior sacroiliac ligament.
Interosseous Sacroiliac Ligament
What forces skeep the symphysis together?
1. Extremely strong posterior L
2. Articulation at the SI joint.
During. a heel strike, the right leg glides forward and this is aided by the right innominate rotating __________.
- ◦ Contralateral innominate rotates _________
- ◦ _______ and ________ were contracted to flex the LE at the hip
- ◦ _________ contraction and motion of the swing phase both act upon the innominate to cause _______ rotation.
- posterior
- anterior
- Iliopsoas and quadriceps femoris
4. Iliopsoas
- Posterior
During a toe off of the R leg:
The body does a controlled fall forward with the _____ leg gliding forwards and _______ rotation of the innominate is mainly a passive process.
- ◦ Contralateral innominate rotates ________, mainly an active process
- ◦ _________ relaxation allows anterior rotation of the innominate with _______ & ______ contraction to extend the LE at the hip
- ◦ Ipsilateral _______and _______ aids anterior innominate rotation
- Left
- anterior
- Posterior
- Iliopasoas
- Glut max
- hamstrings
- erector spinae m.
- Quadratus lumborn
- Flexors – ___at the hip, ____act at hip and knee
- External rotators – ___
- Adductors – ____ (plus ___ minor)
- Abductors – ____
- Extensors – ___
•Flexors – 2 at the hip, 2 act at hip and knee
- External rotators – 6
- Adductors – 3 (plus 2 minor)
- Abductors – 3
•Extensors – 4
