4/23/2021 0 Comments Joints Powerpoint
Supination is a motion about an axis that results in coupled motions of plantarflexion, inversion, and adduction.The complementing structures of the foot allow the foot to sustain large weight-bearing stresses under a variety of surfaces and activities that maximize stability and mobility.
![]() These joints include: the proximal and distal tibiofibular joints; the talocrural, or ankle, joint; the talocalcaneal, or subtalar, joint; the talonavicular and the calcaneocuboid joints (transverse tarsal joints); the five tarsometatarsal joints; five metatarsophalangeal joints; and nine interphalangeal joints. Interactive Foot and Ankle Human Anatomy in 3D: Interactive Foot and Ankle Human Anatomy in 3D Ankle Subtalar Joint Motion Function Explained: Biomechanics of the Foot - Pronation Supination: Ankle Subtalar Joint Motion Function Explained: Biomechanics of the Foot - Pronation Supination PowerPoint Presentation: To facilitate description and understanding of the anklefoot complex, the bones of the foot are traditionally divided into three functional segments. These are: the hindfoot (posterior segment), composed of the talus and calcaneus; the midfoot (middle segment), composed of the navicular, cuboid, and three cuneiform bones; and the forefoot (anterior segment), composed of the metatarsals and the phalanges (Fig. PowerPoint Presentation: These terms are commonly used in descriptions of ankle or foot dysfunction or deformity and are similarly useful in understanding normal ankle and foot function. PowerPoint Presentation: The frequency of many ankle or foot problems can be traced readily to the complex structure of the foot and their participation in all weight-bearing activities. Structural abnormalities can lead to altered movements between joints and contribute to excessive stresses on tissues of the foot and ankle that result in injury. Definitions of Motions: Definitions of Motions A unique set of terms is used to refer to motion of the foot and ankle. The same terms are used at most of the joints of the ankle and foot, and, consequently, it is useful to describe them at the outset. As we have seen at other joint complexes, few if any of the joint axes lies in the cardinal planes; more commonly, the joint axes are oblique and cut across all three planes of motion. The obliquity of the axes and implications for motion and function will be described in detail as we present individual joints. PowerPoint Presentation: The three motions of the anklefoot complex that approximate cardinal planes and axes are dorsiflexionplantarflexion, inversion eversion, and abductionadduction (Fig. Dorsiflexion and plantarflexion are motions that occur approximately in the sagittal plane around a coronal axis. Dorsiflexion decreases the angle between the leg and the dorsum of the foot, whereas plantarflexion increases this angle. PowerPoint Presentation: At the toes, motion around a similar axis is termed extension (bringing the toes up), whereas the opposite motion is flexion (bringing the toes down or curling them). Inversion and eversion occur approximately in the frontal plane around a longitudinal (anteroposterior A-P) axis that runs through the length of the foot. Figure 12-2 Cardinal axes for the motions of the anklefoot complex.: Figure 12-2 Cardinal axes for the motions of the anklefoot complex. PowerPoint Presentation: Inversion occurs when the plantar surface of the segment is brought toward the midline; eversion is the opposite. Abduction and adduction occur approximately in the transverse plane around a vertical axis. Abduction is when the distal aspect of a segment moves away from the midline of the body (or away from the midline of the foot in the case of the toes); adduction is the opposite. PowerPoint Presentation: Pronationsupination in the foot are motions that occur around an axis that lies at an angle to each of the axes for cardinal motions of dorsiflexionplantarflexion, inversioneversion, and abductionadduction. Consequently, pronation and supination are terms used to describe composite motions that have components of, or are coupled to, each of the cardinal motions. PowerPoint Presentation: Pronation is motion about an axis that results in coupled motions of dorsiflexion, eversion, and abduction.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |