Foundations of Occupation: Kinesiology in Daily Life - The Lower Extremity: Pelvis & Hip

These flashcards encompass key vocabulary and concepts related to the pelvis and hip, derived from the lecture content on kinesiology and the lower extremities.

Pelvis

Formed by 2 sides of the pelvic bone, sacrum and coccyx.

Acetabulum

The cuplike, concave socket of the hip joint.

Sacroiliac Joint

Articulation between the first 3 sacral vertebrae and the ilium.

Lumbosacral Joint

Articulation between the 5th lumbar vertebra and the first sacral vertebra.

Hip Joint

A ball and socket joint between the femur and acetabulum of the pelvis.

Angle of Inclination

The angle formed by the femoral neck and femoral shaft, affecting knee stability.

Valgus

Oblique displacement of the distal limb away from the midline.

Varus

Oblique displacement of the distal limb towards the midline.

Pelvic Tilt

The rotation of the pelvis in a plane, affecting lumbar and hip positions.

Anterior Pelvic Tilt

Rotation of pelvis so the pubis moves inferiorly and posteriorly.

Posterior Pelvic Tilt

Rotation of pelvis so the pubis moves superiorly and posteriorly.

Force Couples

Muscle groups that work together to produce a movement at the pelvis.

Open-Chain Motion

Joint motion where distal segment moves around a more stationary proximal segment.

Closed-Chain Motion

Joint motion where the proximal segment moves around a more stationary distal segment.

Hip Flexion

Anterior movement of femur in the sagittal plane.

Hip Extension

Posterior movement of femur in the sagittal plane.

ABduction

Lateral movement of the femur away from the midline.

ADduction

Medial movement of the femur towards the midline.

Internal Rotation

Rotation of the knee inward around the longitudinal axis.

External Rotation

Rotation of the knee outward around the longitudinal axis.

Circumduction

A circular movement that combines flexion, abduction, extension, and adduction.

Hip Flexors

Muscles responsible for flexing the hip, including iliopsoas and rectus femoris.

Hip Extensors

Muscles that extend the hip, including gluteus maximus and hamstrings.

Hip ADductors

Muscles that function to adduct the hip, including adductor longus and gracilis.

Hip ABductors

Muscles that abduct the hip, encompassing gluteus medius and minimus.

Hip External Rotators

Muscles that externally rotate the hip, including piriformis and quadratus femoris.

Pelvic Motion Types

Includes anterior, posterior, and lateral pelvic tilts.

Hip Stability

Maintained by the joint capsule and associated ligaments surrounding the hip.

Acetabular Labrum

A ring of wedge-shaped fibrocartilage that deepens the acetabulum.

Center Edge Angle

Angle that affects the stability of the hip joint.

Hip Hiking

The contraction of lateral trunk flexors to raise one side of the pelvis.

Hip Drop

When weakness in hip abductors causes one side of the pelvis to drop.

Trunk Extensors

Muscles that extend the trunk and are involved in pelvic tilt.

Trunk Flexors

Muscles that flex the trunk and assist in posterior pelvic tilt.

Lumbar Flexion

The forward bending movement of the lumbar spine.

Lumbar Extension

The backward bending movement of the lumbar spine.

Synergistic Muscles

Muscle groups that work together at the hip complex to produce movement.

Muscle Contraction Types

Includes isometric, concentric, and eccentric contractions.

Mechanical Leverage

The advantage gained by the muscle action to shift the pelvis and hip.

Joint Capsule

Fibrous tissue enclosing the hip joint that provides support and stability.

Ligaments of the Hip

Three main ligaments that help stabilize the hip joint.

Public Symphysis

The cartilaginous joint between the left and right pubic bones.

Iliofemoral Ligament

A strong ligament providing support to the hip joint.

Femoropatellar Joint

Joint between the femur and patella.

Illiac Crest

The superior border of the ilium located on the pelvis.

Greater Trochanter

A prominent projection on the femur serving as a muscle attachment site.

Lesser Trochanter

A smaller projection on the femur also for muscular attachment.

Knee Joint Mechanics

The function and movement dynamics involving the knee joint.

Pelvic Floor Muscles

Muscles that maintain the position of the pelvic organs.

Functional Movements

Activities performed in daily life that engage the pelvis and hip.

Assessment of Hip Functions

Evaluation of hip movements and muscle performance.

Clinical Application

Practical use of anatomical knowledge in occupational therapy.

Postural Alignment

Positioning of the body segments for optimal function.