Where does lateral flexion occur?

Movement of a body part to the side is called lateral flexion. This type of movement is commonly associated with the neck and spine. For example, when you move your head toward one of your shoulders or bend your body sideways, you’re performing a lateral flexion.

What are lateral flexors?

The lateral trunk flexors (Table 1) act unilat- erally in the frontal plane to side-bend the trunk by pulling the rib cage toward the hip, and they act bilaterally to stabilize the spine. A large number of muscles act to laterally flex the trunk and thus play a significant role in spinal stability.

What causes lateral flexion and extension of the spine?

The origins and insertions of the various deep back muscles overlap extensively, and when they contract, entire regions of the vertebral column can be moved simultaneously (causing extension or hyperextension). When these muscles contract on only one side of the vertebral column, lateral flexion occurs.

Which muscles produce lateral spinal flexion?

Muscles of the Spinal Column

Quadratus Lumborum Lateral flexion of vertebral column
Interspinales Extends vertebral column
Intertransversarii Mediales Lateral flexion of vertebral column
Multifidus Extends & rotates vertebral column

What type of joint is lateral flexion?

Atlantooccipital joint

Type Synovial ellipsoid joint; biaxial
Ligaments Posterior atlantooccipital ligament, anterior atlantooccipital ligament
Innervation C1 spinal nerve
Blood supply Anastomosis between deep cervical, occipital and vertebral arteries
Movements Principal movement; Flexion – extension Limited lateral flexion

Is lateral flexion the same as abduction?

Abduction – Movement away from the midline of the body (in the frontal plane). Adduction – Movement toward the midline of the body (in the frontal plane). Lateral Flexion – Displacement of the trunk away from the midline in the frontal plane (in the frontal plane).

What is lateral flexion of the trunk?

Movement of the trunk to the left or right, which involves movement of the shoulder towards the hip on either side. The movement is brought about by the action on one side of the body of the external and internal oblique muscles, and the quadratus lumborum.

Where is lateral flexion most limited in the spine?

Lateral flexion is free at the atlanto-occipital joint, cervical and lumbar spine, but less free in the thoracic spine.

Where does flexion and extension occur in the vertebral column?

Flexion and extension are common to all parts of the spine; a significant degree of flexion/extension can be achieved at the atlanto-occipital joint, cervical and lumbar spine, but is restricted in the thoracic spine.

What is a lateral bend?

The lateral bending of the body is a result of the natural movement of the spine, the muscles, and the use of the front and hind legs. That means: The body is bent from neck to tail, and is naturally bent to the left or to the right.

Where is Occipito atlanto axial region?

The atlanto-axial joint is a joint in the upper part of the neck between the atlas bone and the axis bone, which are the first and second cervical vertebrae. It is a pivot joint.

Atlanto-axial joint
MeSH D001268
FMA 25524
Anatomical terminology

Where is the lateral atlantoaxial joint?

It is classified as a pivot joint. The lateral atlantoaxial joints are bilateral joints formed between the lateral masses of the atlas and axis. These joints are classified as gliding, or plane joints.

Atlantoaxial joint.

Type Atlantoaxial joint complex: Synovial joint; biaxial
Blood supply Deep cervical, occipital, vertebral arteries

Where does abduction and adduction occur?

Abduction and adduction motions occur within the coronal plane and involve medial-lateral motions of the limbs, fingers, toes, or thumb. Abduction moves the limb laterally away from the midline of the body, while adduction is the opposing movement that brings the limb toward the body or across the midline.

Where does adduction occur in the body?

Abduction and adduction motions occur within the coronal plane and involve medial-lateral motions of the limbs, fingers, toes, or thumb. Abduction moves the limb laterally away from the midline of the body, while adduction is the opposing movement that brings the limb toward the body or across the midline.

Where are ball and socket joints found?

Examples. Examples of this form of articulation are found in the hip, where the round head of the femur (ball) rests in the cup-like acetabulum (socket) of the pelvis; and in the shoulder joint, where the rounded upper extremity of the humerus (ball) rests in the cup-like glenoid fossa (socket) of the shoulder blade.

Where does extension occur in the body?

Extension – straightening a joint. This occurs when the angle of a joint increases, for example the elbow when throwing a shot put. The take-off knee extends when a high-jumper takes off (the other knee is flexed). Ball and socket joints also allow flexion and extension.

What is lateral rotation of the hip?

The lateral rotators are muscles in the hip/gluteal region of the body and their main job is basically what it sounds like: to rotate the hip joint laterally. To a lesser extent, they also help with other motions of the hip, such as extension and adduction.

What is flexion and extension of the hip?

The structure of the hip allows a wide range of motion to (and between) the extreme ranges of anterior, posterior, medial, and lateral movement. Raising the leg toward the front is termed flexion; pushing the leg toward the back is termed extension (Figure 2).

What is lateral extension?

(this motion is in the frontal plane) Lateral Extension – When referenced from anatomical position, extension is increasing the angle at the joint, or movement back to anatomical position. (this motion is also in the frontal plane)

What does bilateral flexion mean?

So I'm going to be demonstrating a bilateral flexion of the sacrum. So for this you would have an equivocal seated flexion test a deep sacral focuses on both sides and prominent ila s on both sides.

What is lateral flexion in fast bowling?

We now know that the most significant cause of spinal stress fractures in fast bowlers comes from excessive side bend, or “lateral flexion” in scientific speak. This is often caused as a result of the body compensating in the delivery stride for things that have not worked correctly further back.

How is lumbar lateral flexion measured?

Using the fingertip-to-floor method, the distance from the third fingertip to the floor is measured, first with the patient standing erect, and then after the subject laterally flexes the spine. The change in distance from erect standing to lateral flexion is considered the range of lateral flexion (see Fig. 8-52).

How do you measure lumbar lateral flexion with inclinometer?

Instructions: Using a single mechanical inclinometer, place the middle of the base at/near T12. Have the patient flex forward keeping the knees straight/locked and at the end-point, bobb up and down several times to remove the slack, then take the measurement.

Where is the lumbar spine located?

lower back

Your lumbar spine consists of the five bones (vertebra) in your lower back. Your lumbar vertebrae, known as L1 to L5, are the largest of your entire spine. Your lumbar spine is located below your 12 chest (thoracic) vertebra and above the five fused bones that make up your triangular-shaped sacrum bone.

What is flexion of spine?

Flexion is the anatomical name for forward bending. When treating back pain, many spine specialists encourage exercises to strengthen the muscles that act to bring the spine into flexion. In the lower back, approximately 50% of flexion occurs at the hips, and 50% occurs at the lower spine.