Role of lymphatic system - circulation, Biology

Assignment Help:

Role of Lymphatic System - Circulation

The lymphatic system plays an important role in body's defence - system by producing lymphocytes and monocytes in the lymph nodes located along major lymph vessels. Lymph nodes are present in birds and mammals only. The phagocytic cells engulf dead cells, cell debris and foreign objects such as bacteria as the lymph filters through the lymph nodes.

In addition to this general phagocytic activity, cells that are present in the lymph nodes as well as in blood, the lymphocytes (white blood cells) are involved in specific defensive responses to infection. Because the lymph nodes are very active in defence responses, they often become swollen and tender during infection. The so called "swollen glands” that often accompany a sore throat are not glands, but active lymph nodes.


Related Discussions:- Role of lymphatic system - circulation

What is oxidative phosphorylation, What is oxidative phosphorylation? O...

What is oxidative phosphorylation? Oxidative phosphorylation is  the process by which ADP is phosphorylated by Pi  to ATP  in  the  respiratory chain.

What are the main prophylactic measures against malaria, Q. What are the ma...

Q. What are the main prophylactic measures against malaria? The major preventive measures against malaria are the elimination of the treatment of infected people, vector mosqui

Endocrine glands - prostaglandins, PROS T AGLANDIN S (PGS) - Beca...

PROS T AGLANDIN S (PGS) - Because they were first found in semen (which is produced partly by the prostate gland), they were named prostaglandins. Prostaglandins are d

Role of chemical factors in controlling apical dominance, Role of Chemical ...

Role of Chemical Factors in Controlling Apical Dominance There were indications about the existence of plant hormones in the last part of 19th century. The plant hormones had

Requirements of various nutrients in constipation, Q. Requirements of vario...

Q. Requirements of various nutrients in constipation? The requirements of various nutrients are not altered in constipation. It is essentially a normal balanced diet (normal RD

What is maturation and adaptation, Maturation and adaptation: (18 to 54 wee...

Maturation and adaptation: (18 to 54 weeks) The final stage involves maturation and adaptation of the implant-bone interface, peri-implant bone and the entire implant supportin

Which functional group cross-linked in protein, Which functional group (sid...

Which functional group (side-chain) can be "cross-linked" in protein? a. sulfhydryl b. amino c. Phosphate d. Hydroxyl e. Carboxyl

What do you understand by serial homology, What do you understand by Serial...

What do you understand by Serial homology? Metamerization results in a linear series of segments which share a common embryonic origin. Ancestrally, all metameres were identica

What is coevolution, What is Coevolution ? There is considerable eviden...

What is Coevolution ? There is considerable evidence that supports an interesting theory that two individual species can affect each others evolution in reciprocal fashion. In

Write the meaning of diabetes mellitus, Q. Write the meaning of diabetes me...

Q. Write the meaning of diabetes mellitus? The word "diabetes" is from the Greek word meaning "a siphon". Diabetes patients had polyuria (passing excessive urine) and "pass it

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd