Lymph Nodes Anatomy

Anatomy Of Lymph Nodes

• It is a small pea nut shaped lymphatic organ.

• It is covered by a capsule.

• At one place, a small depression will be present called as hilum.

• Just beneath the capsule, a narrow space will be present called as subcapsular sinus.

• The interior of the lymph nodes is divided into outer cortex and inner medulla.

• In the cortex, the lymphocytes are arranged in the form of round masses called as cortical nodules.

• In the medulla the lymphocytes are arranged as medullary cords.

• The afferent lymphatic vessel will divide into branches and they bears the capsule at different places enter the subcapsular sinus.

• The single efferent lymphatic vessel comes out of the helium.

Applied Anatomy :

• During infection the lymph nodes will enlarge called as lymphodenities, even in lower the regional lymph nodes will enlarged and even pain.

 
 

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Terms Used to Describe the movements of the body

Terms used to describe the movements of the body

1.Flexion : Decreasing the angle at the joint.
   Extension : Increasing the angle at the joint.

2. Adduction : Moving close to the trunk
    Abduction : Moving away from the trunk.

3. Medial Rotation : Rotating medially
    Lateral rotation : Rotating Laterally
    Circumduction  : Moving in a Circle.

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Anatomical Terms

Anatomical Terms

 1.    Anterior     -     Infront     -     Vertical
     Posterior    -     Back        -     Dorsal.

2.  Medial     -     Close to the midline of the body
     Lateral     -     Away from the midline of the body.

3. Superior     -     Above
    Inferior      -     Below.

4. Cephalic or Cranial     -     Close to the head end of the body
    Caudal     -     Close to the tail end of the body.

5. Superficial     -     Close to the skin
    Deep              -     Away from the skin in the interior of the body.

6. Proximal     -     Close to the trunk.
    Distal          -      Away from the trunk.

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Anatomical Position

Anatomical Position

          In this position the person will be standing straight with his head erect eyes looking straight forwards, both the feet close together, both the upper limbs by the side of the body with palms facing forwards. The study of human anatomy is done in relation to this position only.

Supine Position :

          The person will be lying flat on a horizontal surface with his face directed upward.

Prone Position :

          The person will be lying flat and horizontal surface with his face directed downwards.

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Anatomical Planes and Tersms

Anatomical Planes and Terms

These are three in number

1.Sagital Plane :

     A section taken along this plane is called as sagital plane. It will divide the body into right and left parts.

2.Coronal Plane :

     It is at right angles of sagittal plane. A section takes along this plane is called as coronal section which will divide the body into anterior and posterior parts.

3.Horizontal or Transverse Plane :

     A section taken along this plane will divide the body into upper and lower parts.

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