How the lymphatic system works
The lymph system cleans out organisms and chemicals that it recognizes as disease-causing.
Body fluid is called lymph while it is in the lymphatic system.
Lymph flows in one direction - toward the heart.
Where your lymph nodes and lymph vessels are located.
The yellow spots are the nodes, and the white lines are the vessels.
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(2) READ p. 372-375, Lymph Nodes
Swollen lymph nodes and sore throat?
Here's why.
The lymphatic system is composed of vessels lying next to the capillaries.
The lymph nodes clean the lymph before returning it to the body.
What to do if you're stopped up or have swollen lymph nodes.
-DO THIS
Lymphatic System
• Lymphatic System Game - click and match
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(3) READ 375b-377, Tears
The lacrimal glands produce tears that run through tiny tear ducts, then flow across the eyes.
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(4) 378-381, The Urinary System
Although the lymphatic system cleans out things it recognizes as disease-causing, the kidneysonly clean out chemicals that become dangerous to the body when they reach certain levels.
See how the kidneys filter out some things (through nephrons) to keep them from reaching toxic levels, and let proper amounts be reabsorbed into the bloodstream.
-Urinary System
• Urinary System Game - click and match
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(5) READ 382-384, The Endocrine System
Hormones are released by endocrine glands, sometimes just called glands.
►The hypothalamus controls the pituitary gland (both are types of endocrine glands).
Both are located below the brain.
The pituitary gland is often referred to as the "master endocrine gland" since the hormones it makes control many other endocrine glands in the body.
Location and Function of the Endocrine glands
Animation of insulin and glucose.
Insulin is a hormone produced by the pancreas.
The pancreas, in addition to being a digestive organ, is also an endocrine gland.
Slower, more detailed explanation of insulin and glucose.
DO THIS
-Endocrine System
• Endocrine System Game - click and match
• Endocrine Glands Game - click and match
Other glands produce different hormones.
These ↓ are also controlled by the pituitary gland, the "master endocrine gland."
►Adrenal glands -- "adjacent" means next to, and "renal" refers to the kidneys. Adrenal glandssit on top of the kidneys. This is also where we get the word adrenaline.
►Thyroid gland -- affects the basal metabolic rate.
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Module 15
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General Science Lab 15.1: Working Your Lacrimal Glands Too Hard
General Science Lab 15.1 - Lab Starter
General Science, Module 15, Quiz