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name the structures that make up the lymphatic system
lymph vessels
lymph nodes
aggregated lymph nodules
tonsils
lymph tissue
lymphocytes
lymph
sleep
thymus
what are the fibers that anchor the flaps in the initial capillaries called
anchoring filaments
what causes these flaps to open
the anchoring fibers stretch and relax which opens and closes the flaps
an increase in fluid volume and pressure in the interstitial spaces causes the anchoring filaments, which are attached to the neighbouring tissue to stretch and open the flaps of the initial lymphatics
what percentage of precollectors is located just under the skin
70%
what is lymphangion
A segment of a lymphatic vessel that is bounded by two valves and is the functional unit of the lymphatic system
what divides each lymphangion
the one-way valves divide each section into lymphangions
this gives vessels and prollectors their bead shape
approximately how many lymph nodes are in the body
600-700
how many lymph nodes are in the neck
160
where are most of the lymph nodes located
in the intestines
what are the principle lymphatic trunks
lumbar trunks
intestinal trunk
intercostal trunks
bronchiomedistinal trunk
subclavian trunk
jugular trunks
what are the lymphatic ducts
there are two lymphatic ducts: 1. the right lymphatic duct and 2. the thoracic duct, which are the largest lymph vessels in the body and drains lymph into the subclavian veins
what areas of the body do the lymphatic ducts drain
the lymph vessels from the right half of the head, neck, and chest concierge in the right lymphatic duct, which empties into the right subclavian vein via the right venous angle (aka terminus). all other areas are drained by the thoracic duct, which is formed by the cisterna chyli
how does lymph move
the lymph pump
the lymph pump is the rhythmic wave-like contraction of lymphangitis
what are watersheds
lines are drawn on the basis of different directions of superficial lymph flow.
where are the watersheds in the body
the body is divided into superior and inferior halves by a watershed that is located at the navel around the iliac crest to the L2 area. Lymph below this watershed is drained to the inguinal lymph nodes and lymph above this watershed is drained, for the most part, to the axillary lymph nodes
in the lower limb there is a watershed down the posterior aspect of the leg
there is a watershed that runs from the jugular notch to the pubic symphysis dividing the body into right and left
there is another watershed that follows the clavicle and spine of the scapula
what is lymphedema
chronic edema caused by pathology or obstruction of the lymphatics. edema from inflammatory responses can become chronic lymphedema if scar tissue obstructs the lymph vessels or if lymphatic tissue is destroyed
what are the contraindications to performing LDM
a person with edema in which the cause is unknown
acute inflammation caused by bacteria, allergies or toxic substances
acute illness contagious conditions
active cancer or seriously ill get physician approval
open wounds rashes inflamed skin conditions
fevers
thrombosis and phlebitis local CI
Major heart problems congestive heart failure heart attack or heart surgery in the past year
kidney failure or undergoing dialysis
undergoing organ transplant
what are some precautions to LDM
kidney problems and liver problems - get physician approval
severe uncontrolled asthma
untreated thyroid hyperactivity
treated tuberculosis
mastectomy with edema in the arms
people at risk for thrombosis
pregnancy with a history of miscarriage
varicose and spider veins that are hot, red, painful
low blood pressure
name some conditions that LDM can help
edema know the cause before treating
acute injuries/inflammation decreases fibrin and metabolic wastes therefore decreasing scar tissue formation
chronic injuries and soft tissue injury
LDM can reduce chronic sinus infections
scar/scar tissue
before and after surgery- speed healing and reduce edema
traveller’s or positional; edema - beware of deep vein thrombosis
sluggish immune system - frequent colds or allergies. LDM stimulates the circulation of immune cells
maintaining a healthy immune system
reduce stress and muscle tension - triggers PNS
enhancing the skin’s health - unhealthy skin caused by poor circulation. LDM can help with acne and eczema
what is the direction of the techniques used in LDM
the direction of lymphatic flow
what are the 4 main techniques used in LDM
stationary circles
scoop technique
pump technique
rotary technique
what are some basic principles of LDM
moving the skin
apply gentle pressure
slow movements
move in the proper direction
rhythm and repetition
what are some indication for performing LDM on the face and neck
reduces bruising and swelling following injury or surgery, do not massage open wounds
facial edema, hormones, medication fatigue, illness, injury, weeping
stimulating a sluggish immune system to become more active may be helpful with clients who have frequent colds and flu
improve skin’s complexion
whiplash ( careful not to reduce protective spasm)
chronically swollen lymph nodes from repeated infections (after the infection has healed)
where are the lymph nodes in the face located
lymph nodes are located in the front of the ears, at the angle of the jaw anterior to the masseter, and sometimes near the eyes, nose, and mouth
where are the lymph nodes in the neck located
there are two triangles on the neck. the anterior triangle is bordered by the SCM muscles. borders if the posterior triangle is the SCM clavicle and the border of the upper trapezius muscle. the apex of this triangle is below the ear lobe. lymph nodes are also located behind the mandible from the angle of the mandible to the chin back behind the ears and along the base of the skull
what makes up the triangles of the neck
the anterior triangle is bordered by the SCM muscles. borders of the posterior (lateral) triangle are the SCM, clavicle and border of the upper trapezius muscle. the apex is below the ear lobe
describe stationary circles
15-30 circles in one spot
moving the skin
stretch skin lengthwise and clockwise, this stretches the initial capillaries and stimulates lymph vessels to contract. it also pulls on the anchoring filaments, causing the flaps of the initial capillaries to open. stretching the lymphangion increases the pulsation rate, and this increases the flow of lymph
apply gentle pressure
the softer the tissues or more severe the edema, the lighter the pressure. stokes must be adjusted to each region of the body. some text say that the pressure should be 30-40 mmHg less than .5 to 8 ounces per inch or the weight of a nickel. too much pressure can damage the thin anchoring filaments, too little pressure will have noeffect
slow movements
the greater the amount of edema the slower the movements should be. movements can be as slow as 6 circles per minutes or sped up depending on the tissue response
move in the proper direction
move towards the lymph nodes in the neck, axilla and inguinal area keeping in mind where the watersheds of the body are. drain the lymph nodes first then proceed to the related quadrant working proximal to distal and then back to proximal finishing by draining the lymph nodes. massaging the lymoh nodes first will make room for the incoming fluid from the related region
never perform LDM distal to the edema this will cause a bottle neck effec t and further congest the affected area
rhythm and repetition
smooth rhythmic movements are essential to lymph drainage massage success. slow rhythmic repetition of massage movements stimulates a wave in the fluid similar to intestinal peristalsis. remain in contact with the same area for at least one minute, repeating the stoke with the same pressure, direction, and speed until there is a palpable change in the tissue. begin with 6 to 10 repetitions of the massage stroke in one minute, increasing the minutes in an area if the tissue does not respond