Summary
Summary Chapter 27 Lymphatic System
- Course
- Institution
- Book
A summary of the entire lymphatic system chapter with complete keywords and diagrams. Best for any exams or tests or reviews. A very handy reviewer.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
The Lymphatic System
-
Cell structure
-
Summary Biology Plus - Biology
Seller
Follow
alexandranotes
Content preview
Lymphatic systemChapter 27
Lymphatic system circulates a fluid called lymph around the body
Drains fluid (called lymph) that has leaked from the blood vessels into the
tissues and empties it back into the bloodstream via the lymph nodes.
Lymph vessels system of dead-ending vessels which transport the lymph back to the blood
circulatory system
Lymph nodes swellings in the lymph vessels. These help to fight infection in the body. Filters
found along the path of the lymph vessels.
Lymph combination of tissue fluid and white blood cell
Tissue fluid similar to plasma except it does not have red blood cells or platelets and has
smaller amounts of white blood cells and protein.
Acts as an exchange medium, whereby material entering or leaving cells must
pass through it
Tissue fluid can be drained by 2 routes
90% of it is drawn back into plasma in the capillaries near the veins. This occurs by
osmosis and is helped by the reduced blood pressure in the veins.
10% of the fluid enters dead-ending tubes (lymph vessels). The fluid is now called lymph.
Lymph contains large amounts of white blood cells, proteins and fats.
Lymph vessels move lymph throughout the body by:
The muscular walls of the vessels
General body movements pressing on the vessels
*a system of valves ensures that lymph can only flow towards the shoulder regions. Smaller lymph
vessels join together to form two main vessels*
2 main vessels
The thoracic duct on the left side of the body
The right lymphatic duct at the right shoulder
*these ducts empty lymph into the bloodstream at the subclavian veins located near the collar
bones at the shoulders*
Lymph nodes small swellings found along the lymph vessels. They contain large numbers of
white blood cells (lymphocytes) and have many channels through which the
lymph flows.
Found in clusters, which form glands, in the areas of the body such as the
tonsils, adenoids (back of the nose), neck, armpits, thymus (gland in the
chest), spleen and groin.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller alexandranotes. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.89. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52510 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now