at its surgical neck (columna chirurgica)
Lateral epicondyle of the humerus.
The rock fractures you are describing are likely joint fractures. Joints are natural cracks or fractures that develop in rocks due to stress or cooling. When joints occur in parallel sets along flat surfaces, they are known as sheet joints or exfoliation joints.
The medial epicondyle is the most medial structure of the humerus. The trochlea is the second.
When magma is forced into fractures in the Earth's crust, it can lead to the formation of intrusive igneous rock formations such as dikes and sills. These formations occur when the magma cools and solidifies within the fractures, creating igneous structures that can later be exposed at the surface through erosion.
The plural of humerus is humeri.
The humerus most often fractures in the surgical neck region, which is located just below the head of the humerus. This area is particularly susceptible to fractures due to its anatomical location and the forces typically involved in falls or trauma. Additionally, mid-shaft fractures of the humerus are also common, often resulting from direct blows or torsional forces.
The most common fractures in the elderly are hip fractures, followed by fractures of the wrist, spine, and humerus (upper arm). These fractures are often due to falls, decreased bone density (osteoporosis), and age-related changes in bone integrity.
head of the femur
The anatomical neck is the one that looks like the neck from an anatomy point of view-it is between the head (that goes into the shoulder) and the tubercles. The surgical neck is the site where most fractures occur. It comes just after the tubercles. Remember that the humerus is kind of in the shape of a "7" going into the shoulder joint, so the anatomical neck is like if you cut from the top with a knife, and the surgical neck is if you cut from the side.
Actually, the anatomic neck of the humerus is proximal to the surgical neck of the humerus. The anatomic neck is the slightly constricted region below the head of the humerus, while the surgical neck is the region of the humerus prone to fractures located distal to the tubercles.
They don't really occur in an exact spot it is always different. Sourcs: Science Teacher
In an accident, the surgical neck of the humerus is more likely to fracture than the anatomical neck. The surgical neck is located just below the tubercles of the humerus and is a common site for fractures due to its relatively thinner structure and exposure to trauma. In contrast, the anatomical neck is less prone to fractures as it is surrounded by more robust bone and ligaments.
Stress fractures
Spiral fractures are described as crossing a bone at an oblique angle, creating a spiral pattern. This break usually occurs in the long bones of the body such as the upper arm bone (humerus) or the thigh bone
Lateral epicondyle of the humerus.
Augusto Sarmiento has written: 'Functional fracture bracing' -- subject(s): Atlases, Fractures, Treatment, Tibia, Therapy, Injuries, Humerus, Ulna, Ulna Fractures, Orthopedic braces, Braces
The rock fractures you are describing are likely joint fractures. Joints are natural cracks or fractures that develop in rocks due to stress or cooling. When joints occur in parallel sets along flat surfaces, they are known as sheet joints or exfoliation joints.