Lecture 1 - Body Planes and Axis of Motion Flashcards
A vertical plane passing through the body from front to back.
Divides into right half and left half.
Divides body into equal symmetrical halves.
Sagittal Plane
A vertical plane passing through the body from side to side.
Divides body into front half and a back half.
Divides the body into equal, but asymmetrical halves.
Frontal Plane
A horizontal plane passing through the body from side to side and front to back.
Divides body into upper and lower halves.
Divides body into equal, but asymmetrical halves.
Transverse Plane
The __ is a line around which motion takes place.
Axis
The _____ of ______ is always perpendicular to the plane in which the motion takes place. Motion occurs along the plane
Axis
Motion
Motion takes place in one plane while the axis is formed by the other two planes.
There are ____ axes of motion, one vertical and two horizontal.
Three
The axis of motion is considered the _____ part while the motion takes place in the ______ part
Proximal
Distal
Horizontal axis which passes from side to side and lies in the frontal and transverse planes (frontal-transverse axis).
Dorsiflexion and plantar flexion of the foot/ankle. Flexion and extension of the leg.
Axis of sagittal plane motion
Horizontal axis which passes from front to back and lies in the sagittal and transverse planes (sagittal-transverse axis).
Coincides with the longitudinal axis of the foot.
Inversion and eversion of the foot. Abduction and adduction of the leg.
Axis of frontal plane motion
Vertical axis perpendicular to the ground and lies in the frontal and sagittal planes (frontal-sagittal axis).
Abduction and adduction motions of the foot. Internal and external motions of the leg.
Transverse Plane Motion
Define: motion where the distal aspect of the foot moves dorsally, or towards the tibia.
Dorsiflexion
motion where the distal aspect of the foot moves plantarly, or away from the tibia
Plantar flexion
motion where the plantar surface of the foot moves toward the midline of the body.
Inversion
motion where the plantar surface of the foot moves away from the midline of the body.
Eversion
motion where the distal aspect of the foot moves away from the midline of the body.
Abduction
motion where the distal aspect of the foot moves toward the midline of the body.
Adduction
The fixation of a part in the position it would assume in adduction. A transverse fixation with the distal end displaced toward the midline.
Adductus
The fixation of a part in the position it would assume in abduction. A transverse fixation with the distal end displaced away from the midline.
Abductus
A fixation of the foot or part of the foot in the position it would assume if plantarflexed. The distal end of the part is further away from the tibia.
Equinus
A fixation of the foot or part of the foot in the position it would assume if dorsiflexed. The distal end of the part is closer to the tibia.
Calcaneus
A fixation of the part in the position it would assume if inverted. A frontal plane fixation in which the plantar surface is turned toward the midline.
Varus
A fixation of the part in the position it would assume if everted. A frontal plane fixation in which the plantar surface is turned away from the midline.
Valgus
Refers to the hereditary defects which change the position of the entire foot. The deformity can be either in the talus, calcaneus or both.
Tailless
Normal or straight alignment (example is forefoot to rearfoot).
Rectus
15 degrees from transverse plane and 9 degrees from the sagittal plane
Longitudinal Axis
52 degrees from the transverse plane and 57 degrees from the sagittal plane
Oblique Axis
45 degrees from the frontal and sagittal planes
First Ray Axis
First ray dorsiflexes it inverts
First ray plantarflexes it everts
Little to no transverse plane motion
Evaluates the medial column Cyma line Calcaneal inclination angle Talar declination angle Midtarsal faults or breaches Position of first ray
Sagittal Plane
Demonstrates the lateral column Cuboid abduction angle Kites angle (talo-calcaneal angle) Talo-navicular congruency Forefoot to rearfoot relationship
Transverse Plane
Calcaneal axial projection
Evaluates the posterior column
Frontal Plane