What does the Elbow Joint connect?
- The Arm
2. The Forearm
What marks the Elbow Joint in the Upper Limb?
- Medial Epicondyle of the Humerus
- Lateral Epicondyle of the Humerus
- Olecranon Process of the Ulna
What type of Joint is the Elbow Joint?
How many Separate Articulations are there in the Elbow Joint?
What are the Separate Articulations in the Elbow Joint?
- Trochlear Notch of the Ulnar and Trochlea of the Humerus
2. Head of the Radius and Capitulum of the Humerus
What other Joint is found in the same Bursae as the Elbow Joint?
The Radioulnar Joint
Note - although this is in the same area, it is considered an entirely separate articulation
What are Synovial Joints surrounded by?
A Fibrous Capsule, Enclosing the Joint
What is the Benefit of the Fibrous Capsule?
It Strengthens the Joint
- How is the Elbow Joint Capsule described on the Anterior and Posterior Surfaces?
- What is the function of this?
2. It allows for Movement
What is a Bursae?
A Membranous Sac filled with Synovial Fluid
What is the function of the Bursae?
It cushions the Moving Parts of a Joints, Preventing Degenerative Damage.
How many Clinically Important Bursae are there in the Elbow?
What are the Clinically Important Bursae in the Elbow?
Where is the Intratendinous Bursa of the Elbow Joint located?
Within the Tendon of the Triceps Brachii
Where is the Subtendinous Bursa of the Elbow Joint located?
- Tendon of the Triceps Brachii
Where is the Subcutaneous Bursa of the Elbow Joint located?
- Overlying Connective Tissue
What forms the Medial (Ulnar) Collateral Ligament of the Elbow?
A Thickening of the Medial Fibrous Joint Capsule
Where does the Medial (Ulnar) Collateral Ligament:
- Originate from?
- Attach to?
- Medial Epicondyle
- a) Coronoid Process of the Ulna
- b) Olecranon of the Ulna
What forms the Lateral (Radial) Collateral Ligament of the Elbow?
A Thickening of the Lateral Fibrous Joint Capsule
Where does the Lateral (Radial) Collateral Ligament:
- Originate from?
- Bend with?
- Lateral Epicondyle
2. Annular Ligament of the Radius
What is the function of the Collateral Ligaments?
Stabilizing the Flexion and Extension Movement of the Elbow
Which Ligament holds the Head of the Radius?
Note - For more information on the Annular Ligament look up “2.5. The Radio-Ulnar Joint”
What is the Arterial Supply to the Elbow Joint?
What is the Cubital Anastomosis formed of?
Recurrent and Collateral Branches from the Brachial and Deep Brachial Arteries
What is the Nerve Supply to the Elbow Joint?
Anteriorly: 1. Median Nerve 2. Radial Nerve 3. Musculocutaneous Nerve Posteriorly: 1. Ulnar Nerve
What movement occurs at the Elbow Joint?
What muscles cause Flexion at the Elbow Joint?
Brachioradialis + Muscles of the Anterior Compartment of the Arm:
- Biceps Brachii
What muscles cause Extension at the Elbow Joint?
Muscles of the Posterior Compartment of the Arm:
- Triceps Brachii
Do Pronation and Supination occur at the Elbow Joint?
No, they are produced at the nearby Radio-Ulnar Joint