MSK Flashcards
1
Q
How does Hypocalcaemia cause muscle spasms?
A
- Low plasma calcium increases the permeability of neuronal membranes to sodium ions, causing a progressive depolarization.
- This increases the ease with which action potentials can be initiated. If the plasma Ca2+ decreases to less than 50% of the normal value action potentials may be spontaneously generated, causing contraction of peripheral skeletal muscle.
2
Q
What is the function of RANK-Ligand and where is it produced?
A
- RANK Ligand Stimulates Osteoclast Formation, Function and Survival
- It is produced by Osteoblasts
3
Q
What cells are present at the beginning of Intramembranous Ossification?
A
- Mesenchymal Stem Cells
4
Q
Which structure does the Extensor Carpi Ulnaris muscle abduct?
A
hand
5
Q
What nerve supplies the Flexor Carpi Ulnaris Muscle?
A
ulnar
6
Q
The inferior gluteal nerve innervates the following muscle?
A
- Gluteus Maximus
7
Q
What ligament strongly limits hyper-extension of the hip and is located on the anterior aspect of the hip joint?
A
- Iliofemoral Ligament
