HARC - MSK Flashcards
Anatomy of the musculoskeletal system
Anatomy of the musculoskeletal system
Anatomy of the musculoskeletal system
Anatomy of the musculoskeletal system
Anatomy of the musculoskeletal system
Basic Principles of MSK
Basic Principles of MSK
The skull
What is pterion?
Spinal cord
Intervertebral discs
ARM ANTERIOR:
What is this superficial muscle and what its function?
Biceps brachii – FLEXES ARM/SUPINATES FOREARM
ARM ANTERIOR:
What is the deeper muscles and what are their functions?
Brachialis – FLEXES THE FOREARM
Coracobrachialis – WEAKLY ADDUCTS/FLEXES ARM
ARM ANTERIOR:
What nerve innervates these muscles?
Biceps Brachii
Brachialis
Coracobrachialis
Musculocutaneous nerve
ARM POSTERIOR:
What muscle is this? And what is its function?
And what is it inervated by?
Triceps brachii – EXTENDS FOREARM
FOREARM ANTERIOR:
What is the superficial muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
Pronator Teres – PRONATE FOREARM
Flexor carpi radialis – FLEX AND ABDUCT WRIST
Palmaris Longus – FLEXES WRIST
Flexor carpi ulnaris – FLEX AND ADDUCT WRIST
MEDIAN NERVE
FOREARM ANTERIOR:
What is the deep muscles shown on the picture?
What is its functions?
What nerve innervates them?
At the bottom…
Pronator quadratus – PRONATES THE FOREARM
Left to right…
Flexor pollicis longus – FLEXES THE THUMB
Flexor digitorum profundus – FLEXES DISTAL PHALANGES
MEDIAN NERVE
FOREARM POSTERIOR:
What is the superficial muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
B Brachioradialis (missing) – FLEXES FOREARM
U Extensor carpi ulnaris – EXTENDS/ADDUCTS WRIST
M Extensor digit minimi – EXTENDS WRIST & LITTLE FINGER
D Extensor digitorum – EXTENDS MEDIAL 4 DIGITS
A Anconeus – EXTENDS AND STABILISES THE ELBOW
R Extensor carpi radialis brevis – EXTENDS/ABDUCTS WRIST
R Extensor carpi radialis longus – EXTENDS/ABDUCTS WRIST
RADIAL NERVE
FOREARM POSTERIOR:
What is the deep muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
Left to right…
I Extensor indices – EXTENDS THE INDEX FINGER
E Extensor pollicis longus – EXTENDS THE THUMB
E Extensor pollicis brevis– EXTENDS THE THUMB
A Abductor pollicis longus – ABDUCTS THE THUMB
S Supinator - SUPINATES FOREARM
POSTERIOR INTEROSSEUS NERVE
Shoulder anterior
Shoulder anterior
Shoulder anterior
Shoulder posterior
Shoulder posterior
Shoulder Posterior
The Rotator cuff muscles
The Rotator cuff muscles
The Rotator cuff muscles
The Thorax
The Thorax
GLUTEAL REGION:
What is the superficial muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
Ma Gluteus Maximus – EXTENDS/MEDIALLY ROTATES THE THIGH
Me Gluteus Medius – ABDUCTS/MEDIALLY ROTATES THE THIGH
Mi Gluteus Minimus – ABDUCTS/MEDIALLY ROTATES THE THIGH (Tensor Fascia Latae – FLEXES & ABDUCTS THIGH)
Ma – Inferior gluteal nerve
Me/Mi/T – Superior gluteal nerve
GLUTEAL REGION:
What is the deep muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
O Obturator Internus – ABDUCTS FLEXED THIGH & ABDUCTS/LATERALLY ROTATES EXTENDED HIP
GS Gemellus Superior - LATERALLY ROTATES EXTENDED THIGH
GI Gemellus Inferior – LATERALLY ROTATES EXTENDED THIGH
P Piriformis – LATERALLY ROTATES THE THIGH
Q Quadratus Femoris – ADDUCTS/LATERALLY ROTATES THE THIGH
P – Piriformis nerve
GS&O – Obturator nerve
GI&Q – Quadratus nerve
THIGH ANTERIOR:
What are muscles shown on the picture?
What is its functions?
What nerve innervates them?
L F M S
Left to right…
L Vastus lateralis – EXTENDS LEG
F Rectus Femoris – EXTENDS LEG & FLEXES THIGH
M Vastus Medialis – EXTENDS LEG
S Sartorius – FLEXES/ABDUCTS/LAT ROTATES THIGH. FLEXES LEG
FEMORAL NERVE
THIGH ANTERIOR:
What are muscles shown on the picture?
What is its functions?
What nerve innervates them?
I Iliacus – FLEXES THIGH
P Psoas Major – FLEXES THIGH
FEMORAL NERVE
What are the Quad muscles
Vastus Lateralis
Rectus Femoris
Vastus Medialis
What are the iliopsoas muscles?
iliacus
psoas major
THIGH MEDIAL:
What are the muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
G Gracilis – ADDUCTS THIGH AND FLEXES LEG
L Adductor Longus – ADDUCTS & MEDIALLY ROTATES THIGH
B Adductor Brevis – ADDUCTS & MEDIALLY ROTATES THIGH
M Adductor Mangus – ADDUCTS & MEDIALLY ROTATES THIGH
P Pectineus – ADDUCTS/MEDIALLY ROTATES THIGH (Obturator Externus – LATERALLY ROTATES HIP)
P – Femoral nerve
Adductors/G/O – Obturator nerve
THIGH POSTERIOR:
What are the muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
M Semimembranosus – FLEXES/MEDIALLY ROTATES LEG
T Semitendanosus – FLEXES/MEDIALLY ROTATES LEG
B Biceps Femoris – EXTENDS THIGH/FLEXES LEG
SCIATIC NERVE
LOWER LEG ANTERIOR:
What are the muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
Fibularis/Peroneus tertius – DORSIFLEXES & EVERTS FOOT
Extensor digitorum longus – DORSIFLEXES FOOT & EXTENDS TOES
Extensor Hallucis longus – DORSIFLEXES FOOT & EXTENDS BIG TOE
Tibialis anterior - DORSIFLEXES & INVERTS FOOT
THE DEEP BRANCH OF THE COMMON PERONEAL NERVE
LOWER LEG LATERAL:
What are the muscles shown on the picture?
What is its functions?
What nerve innervates them?
Left to right…
Fibularis/Peroneus Longus – PLANTARFLEXES & EVERTS FOOT Fibularis/Peroneus Brevis – PLANTARFLEXES & EVERTS FOOT
THE SUPERFICIAL BRANCH OF THE COMMON PERONEAL NERVE
LOWER LEG POSTERIOR:
What are the superficial muscles shown on the picture?
What is its functions?
What nerve innervates them?
Top to bottom…
Plantaris – PLANTARFLEX FOOT AND FLEX KNEE
Gastrocnemius – PLANTARFLEX FOOT AND FLEX KNEE
Soleus – PLANTARFLEX FOOT
THE TIBIAL BRANCH OF THE SCIATIC NERVE
Bone
Remodeling Cycle
These hormones would take action if the paitent was hypOcalcemic
Vitamin D: Step 1
Vitamin D: Step 2
Vitamin D: Step 3
Vitamin D Summary:
What is the pectoral girdle composed of?
Scapula and Clavicle
Is the pectoral girdle part of the appendicular or axial skeleton?
appendicular
What joints are involved in the pectoral girdle?
What type of joints are they?
What are their function?
Sternoclavicular - synovial plane joint. Increases freedom of movement for scapula. Mostly slight protraction/retraction and elevation/depression
Acromioclavicular - Synovial plane joint. Gliding movement.
Glenohumeral - Synovial ball and socket. full range of circumduction plus protraction/retraction and medial/lateral rotation.
What joints are involved in the elbow?
What type of joints are they?
What are their function?
Radiohumeral - Synovial ball and socket. Mainly pronation/supination. It goes through the flexion/extension passively.
Ulnohumeral - Synovial hinge. Flexion/extension.
Proximal radioulnar - Synovial pivot joint. Permits pronation/supination
What are the five characteristics of a synovial joint?
- Capsule,
- Supporting ligaments,
- Joint cavity,
- Articular cartilage
- Synovial
Can you classify the bones into axial or appendicular?
The axial skeleton makes up our central axis and consists of the following bones: skull, vertebrae, ribs and sternum. The appendicular skeleton consists of the limbs and girdles. The girdles are the attachment points for the limbs
Biceps brachii
Brachialis
Coracobrachialis
Triceps brachii
To which compartments do these muscles belong?
What is their nerve supply?
BBC → Anterior compartment of upper arm – Musculocutaneous nerve
Triceps brachi → Posterior compartment of upper arm – Radial nerve