rotation!
Rotation is the movement around a longitudinal axis.
The longitudinal axis of a bone is an imaginary line that runs along the length of the bone from one end to the other. It helps to define the orientation and direction of forces acting on the bone, such as during movement or weight-bearing activities. Understanding the longitudinal axis is important in biomechanics and in the study of bone structure and function.
The humerus is a bone in the upper arm that has a long longitudinal axis with expanded ends where it articulates with the scapula at the shoulder joint and the radius and ulna at the elbow joint.
No, upward rotation of the scapula refers to movement where the scapula moves upward and rotates in an upward direction around the axis. Lateral rotation, on the other hand, is the rotation of a bone around its longitudinal axis. These are two different types of movements.
longitudinal fracture
A greenstick fracture is afracture in a young, soft bone in which the bone bends and partially breaks. The bones become harder(calcified) and more brittle with age, it occurs almost exclusively during infancy and childhood when their bones are soft. The name is by analogy with green wood which similarly breaks on the outside when bent. There are three basic forms of greenstick fracture. In the first a transverse fracture occurs in the cortex, extends into the midportion of the bone and becomes oriented along the longitudinal axis of the bone without disrupting the opposite cortex. The second form is a torus or buckling fracture, caused by impaction. The third is a bow fracture in which the bone becomes curved along its longitudinal axis. A greenstick fracture is afracture in a young, soft bone in which the bone bends and partially breaks. The bones become harder(calcified) and more brittle with age, it occurs almost exclusively during infancy and childhood when their bones are soft. The name is by analogy with green wood which similarly breaks on the outside when bent. There are three basic forms of greenstick fracture. In the first a transverse fracture occurs in the cortex, extends into the midportion of the bone and becomes oriented along the longitudinal axis of the bone without disrupting the opposite cortex. The second form is a torus or buckling fracture, caused by impaction. The third is a bow fracture in which the bone becomes curved along its longitudinal axis.
A greenstick fracture is afracture in a young, soft bone in which the bone bends and partially breaks. The bones become harder(calcified) and more brittle with age, it occurs almost exclusively during infancy and childhood when their bones are soft. The name is by analogy with green wood which similarly breaks on the outside when bent. There are three basic forms of greenstick fracture. In the first a transverse fracture occurs in the cortex, extends into the midportion of the bone and becomes oriented along the longitudinal axis of the bone without disrupting the opposite cortex. The second form is a torus or buckling fracture, caused by impaction. The third is a bow fracture in which the bone becomes curved along its longitudinal axis. A greenstick fracture is afracture in a young, soft bone in which the bone bends and partially breaks. The bones become harder(calcified) and more brittle with age, it occurs almost exclusively during infancy and childhood when their bones are soft. The name is by analogy with green wood which similarly breaks on the outside when bent. There are three basic forms of greenstick fracture. In the first a transverse fracture occurs in the cortex, extends into the midportion of the bone and becomes oriented along the longitudinal axis of the bone without disrupting the opposite cortex. The second form is a torus or buckling fracture, caused by impaction. The third is a bow fracture in which the bone becomes curved along its longitudinal axis.
osteonic canals
irregular bone
The canal you are referring to is known as a Haversian canal, which is part of the osteon structure in compact bone. The Haversian canal runs longitudinally along the axis of the bone and is surrounded by concentric lamellae of bone tissue. It is connected to the Volkmann's canals, which are the horizontal passageways that link adjacent Haversian canals and provide pathways for blood vessels and nerves. Together, they facilitate the transport of nutrients and waste products within the bone.
2
the jaw bone