Lymphatic /Anatomy
Terms
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- The right lymphatic duct drains certain body area. Name some
-
(R) upper quadrant
(R) Arm - Why is the intestinal lymph milky-white at times?
- Fatty acids
- What is the name of intestinal lymph?
- Chyle
- Where does the thoracic duct enter into the venous system?
- Subclavian vein
- What is the region of the inquinal lymph nodes?
-
(R) lower quadrant
(R) leg - What is the name of the two veins that build the "venous angle"
-
Subclavian
Jugular - What is the location of the thoracic duct? Cicterna Chyli
- L2 up spine to (L) subclavian venous angle
- What does lymph fluid consist of?
-
1. Proteins
2. Water
3. Cells (RBC,WBC)
4. Waste
5. Fat (intestinal lymph,Chyle) - How many lymph nodes are in the human body?
- 600-700
- What are the functions of lymph nodes?
-
1. filteration
2. absorb water
3. breaks down bacteria
4. production of WBC
5. regulates protein - Occipital nodes are where?
- Occipital region and upper part of the skin of the neck.
- Retroauricular nodes are where?
- Parietal area (EAR)
- Preauricular nodes are where?
- FOREHEAD, upper eyelid, lateral part of lower eyelid
- Submandibular nodes are where?
-
Nose , upper and lower lip
Medial part of lower lid, CHEEK - Submental nodes are where?
- CHIN, medial part of lower lip
- Describe the Structure of a blood capillary?
-
2 layers
Function: Diffusion,ultrafilteration and reabsorbtion takes place - Describe the structure of Lymph Capillaries?
-
**similar to leach (septic) field, when one fills it goes on to the next.
REABSORBTION OF PROTEINS AND FLUID FROM THE INTERSTITIUM.
ANCHORING FILIMENTS - Define interstitium and interstitial fluid?
-
Interstitium: **like jello**
holds things together
about 1/6 of the bod consists of this.
Interstitial: **like pineapple in jello
free fluid that the interstitium picks up. - The most important process to nourish the tissue cells is called?
- Diffusion
- What causes ultrafilteration in the blood capillary?
- BCP-Blood Capillary PRESSURE forces fluid OUT of the capillaries.
- What causes reabsorbtion in the blood capillary?
-
COP- Plasma colloid osmotic pressure
Protein in the capillary - Define Starling's Law.
- The amount of fluid filtering outward from the arterial ends of capillaries EQUALS almost exactly the fluid returned to the circulation by absorption.
- Where in the body dies filteration and reabsorbsion occur?
- Venous side of the body.
- What is "active hyperemia"?
-
DIALATION- blood flow increases-ultrafilteration increases-lymphatic flow increases!!
(Heat, Inflammation, Exercise) - What is "passive hyperemia"?
-
OBSTRUCTION- blood backs up, blood pressure increase-lymphatic flow increases!
(Blood Clot, Cardiac edema) - What is Hypoproteinemia?
- DECREASED PLASMA- reduced reabsorbsion-increased lymphatic flow
- Define "Lymphatic Load"
- The amount of substances that have to be removed from the interstitium by the lymphatic system.
- What does lymphatic load consist of:
-
1. Protein
2. Water
3. Cells
4. Fat - Where in the body does the lymphatic system absorb fat?
- Intestinal tract
-
LTV-Lymph time volume
High output failure
Low output failure -
approx. 1-2 liters per day
Exceeds capacity-Edema
drops below normal capacity-Lymphedema