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The second section
The lymphatic system by the lymph pipeline, the lymphoid organ, the Lymphatic tissue constitutes.
First, lymph pipeline
(one) capillarity lymph vessel
Is the lymph pipeline's section start, the characteristic is:
1. the pipe wall only has an endothelial cell constitution.
2. the permeability is bigger than the blood capillary. Therefore the clinical cancer cell sees the lymph shift.
(two) lymph vessel
Synthesizes by the capillarity lymph vessel, the characteristic is:
1. the structure similar vein, the wall is thin, the diameter is thin.
2. has the similar valvulae venarum type structure, urges the lymph centripetal backflow.
3. point depth, shallow two groups.
4. in the centripetal backflow process, must pass through the multistage lymph nodes.
(three) the lymph does
1. the left and right neck does: Collection pate lymph.
2. the left and right subclavian does: Collection upper limb lymph.
3. the left and right bronchial tube mediastinum does: Collection chest lymph.
4. left and right menopause: Collects the lower limb, the trough department, the abdominal wall, the abdominal cavity doubling internal organs' lymph.
5. the intestines do: Collects the abdominal cavity not to form a pair internal organs' lymph.
(four) lymphatic ducts
1. ductus thoracicus: Is the biggest lymphatic ducts.
(1) outset: The date from cisterna chyli, located at the 1st lumbar vertebra front, does the convergence by the left and right menopause and the intestines to become.
(2) walks the line: Walks the line along the spinal column, puts on diaphragm's aoricus to enter the chest cavity, receives the left neck in the left neck root to do, the left subclavian to do, the left bronchial tube mediastinum to do, pours into the left vein angle.
(3) collection scope: Altogether six do. The left menopause, the right menopause, the intestines do, the left neck to do, the left subclavian to do, the left bronchial tube mediastinum to do.
2. right lymphatic ducts
Does, the right subclavian by the right neck to do, the right bronchial tube vertical diaphragm to do, three do the convergence to become. Pours into the right vein angle.
Second, lymphoid organ
Lymphoid organ including lymph node, spleen and thymus.
(one) lymph node
The ash red minute, the nature is soft. The raised side has several input lymph vessels, the concave side has an output lymph vessel.
2. whole body important lymph node
under (1) lower jaw lymph node: Located at the lower jaw under around the gland, pours into the neck flank deep lymph node. Mainly collects the face and the oral cavity lymph.
(2) neck flank deep lymph node: Along the vena jugularis interna arrangement, its output lymph vessel composition neck does.
(3) armpit lymph node: Located at the armpit, its output lymph vessel composition subclavian does.
(4) inguen shallow lymph node: Divides two groups, on the group arranges along the ligamentum inguinale underneath, next group along vena saphena magna terminal arrangement.
The disposition in the left regio hypochondriaca, corresponds with 9~11 ribs, the major axis is consistent with the 10th rib.
For ellipse essence organ, weight surface two reasons.
(1) both sides
1) facies diaphragmaticon: Smooth, with diaphragm relative.
2) dirty surface: Hollow, near central committee place is the spleen gate.
(2) two reasons
1) lower limb: Obtuse circle.
2) upper limb: Sharp, some 2~3 spleens cut the mark, is the clinical palpation spleen's symbol.
3. function:①Hemopoiesis.②Chu Xue.③Filters the blood.④Participation immune response.
Spleen's shape position function
Left regio hypochondriaca hidden spleen The nature soft and crisp not attacks
Nine to 11 ribs relative Major axis ten ribs consistent
Under the normal rib does not touch Touches the spleen to cut the mark tumescently
Human body biggest lymphatic organ Makes Chu Lvxue the concurrently immunity