What bone markings are on the humerus?
| Location | Marking |
|---|---|
| Large projection located lateral to head | Greater tubercle |
| Lateral to the humeral head on anterior surface | Lesser tubercle |
| Groove located between the greater and lesser tubercles | Intertubercular sulcus (groove) |
| Roughened area located on the lateral aspect of the shaft of the humerus | Deltoid tuberosity |
What are the bone markings of the ulna?
Ulna bone markings
- Olecranon: A hook-shaped process, located on the posterior aspect of the proximal ulnar end,
- Trochlear notch: A C-shaped notch, located anterior to the olecranon.
- Coronoid process.
- Radial notch: The articular facet of the radioulnar joint which can be found on the lateral aspect of its head.
What are the humerus the radius and the ulna?
The humerus is the single bone of the upper arm, and the ulna (medially) and the radius (laterally) are the paired bones of the forearm. The base of the hand contains eight bones, each called a carpal bone, and the palm of the hand is formed by five bones, each called a metacarpal bone.
Which bone marking articulates with the radius?
Radial notch (incisura radialis) is a depression along the lateral edge of the coronoid process that articulates with the head of the radius.
What is a radius bone?
radius, in anatomy, the outer of the two bones of the forearm when viewed with the palm facing forward. All land vertebrates have this bone. In humans it is shorter than the other bone of the forearm, the ulna.
What does the radius bone look like?
It is a long bone, prism-shaped and slightly curved longitudinally. The radius is part of two joints: the elbow and the wrist. At the elbow, it joins with the capitulum of the humerus, and in a separate region, with the ulna at the radial notch. At the wrist, the radius forms a joint with the ulna bone.
Which part of the humerus articulates with the ulna?
trochlea
trochlea: At the distal head of the humerus, it articulates with the ulna of the forearm.
What is the radius bone in the arm?
The radius is the thicker and shorter of the two long bones in the forearm. It is located on the lateral side of the forearm parallel to the ulna (in anatomical position with arms hanging at the sides of the body, palms facing forward) between the thumb and the elbow.