Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Human Anatomy - Final Exam > Pivot Joints > Flashcards

Pivot Joints Flashcards

1
Q

What are pivot joints?

A

Uni-axial joints that allow little movement in the longitudinal axis on the transverse plane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the movement of pivot joints?

A
  • rotation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 2 pivot joints?

A
  • Atlanto-axial joint
  • proximal/superior Radioulnar joint
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the classification of the atlanto-axial joint?

A
  • structural = synovial
  • functional = diarthrosis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 2 bones involved in the atlanto-axial joint?

A
  • C1 (atlas)
  • C2 (axis)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the 3 ligaments that support the atlanto-axial joint?

A
  • anterior atlanto-axial ligament (allows us to rotate our head left/right)
  • posterior atlanto-axial ligament (resists forward translation of the atlas relative to the axis)
  • transverse ligament of atlas (prevents anterior displacement of C1 over C2)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are functional movements of the atlanto-axial joint?

A
  • facilitates locomotion
  • locomotion is the act or ability of something to transport or move itself from place to place
  • i.e., jumping, hopping, skipping
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are clinical findings of the atlanto-axial joint?

A
  • because of its proximity to the brain stem & importance in stabilization, fracture or injury at this level can be catastrophic & cause trauma and pathologies
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the classification of the proximal/superior Radioulnar joint?

A
  • structural = synovial
  • functional = diarthrosis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the 2 bones involved with the proximal/superior Radioulnar joint?

A
  • radius
  • ulna
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What ligament supports the proximal/superior Radioulnar joint?

A
  • annular ligament (allows the radial head to rotate)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 2 Pronator muscles that act on the proximal/superior Radioulnar joint?

A
  • Pronator quadratus/teres
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the 2 supinator muscles that act on the proximal/superior Radioulnar joint?

A
  • supinator
  • biceps brachii (acts as a secondary)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the functional movements of the proximal/superior Radioulnar joint?

A
  • pronation/supination
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are clinical findings of the proximal/superior Radioulnar joint?

A
  • can suffer from instability due to deficiency of the stabilizing structures around the proximal aspect of the radius
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the pronation/supination mechanism of the proximal/superior Radioulnar joint?

A
  • the proximal radius must be fixed in its “collar”
  • the annular ligament & the ulna fixed at the Trochlea, which then the radius spins proximally on the elbow & crosses the ulna distally

Human Anatomy - Final Exam (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions