Ball & Socket Joints Flashcards
1
Q
What are the 2 ball & socket joints?
A
- shoulder joint
- hip joint
2
Q
What are ball & socket joints?
A
- multi-axial joints that allow movements on all 3 planes (Sagittal, frontal, transverse)
3
Q
What are the movements of ball & socket joints?
A
- flexion/extension
- adduction/abduction
- medial/lateral rotation
4
Q
What is the classification of the shoulder joint?
A
- structural = synovial
- functional = diarthrosis
5
Q
What are the 3 bones involved with the shoulder joint?
A
- humerus
- scapula
- clavicle
6
Q
What are the 5 ligaments that support the shoulder joint?
A
- superior/middle/inferior glenohumeral (GH) ligament
- coracohumeral ligament
- transverse humeral ligament
7
Q
What are the 7 acting muscles of the shoulder joint?
A
- biceps/triceps brachii
- coracobrachilais
- Pectoralis major
- latissimus dorsi
- rotator cuff muscles
- deltoid
8
Q
What are 2 functional movements of the shoulder joint?
A
- push-ups
- carrying things
9
Q
What are clinical findings of the shoulder joint?
A
- it dislocates anteriorly/inferiorly
- lots of mobility (little stability)
10
Q
What is the classification of the hip joint?
A
- structural = synovial
- functional = diarthrosis
11
Q
What are the 4 bones involved in the hip joint?
A
- the pelvic bones (ilium, ischium, pubis)
- femur
12
Q
What are the 3 ligaments that support the hip joint?
A
- iliofemoral ligament
- pubofemoral ligament
- ischiofemoral ligament
13
Q
What are the 20 muscles of the hip joint?
A
- gluteus Maximus/medius/minimus
- tensor fascia latae
- psoas major
- iliacus
- pectineus
- biceps femoris
- semimembranosus/semitendinosus
- adductor Magnus/longus/brevis
- gracilis
- superior/inferior gemellus
Obturator internus/externus - quadrates femoris
- piriformis
14
Q
What is a functional movement of the hip joint?
A
- squatting
15
Q
What are clinical findings of the hip joint?
A
- weight bearing
- transfers weight from axial skeleton to the lower appendicular skeleton
- very stable (little mobility)
