Chapter 14 (Transport) F.Sc 1st Year Biology Short Questions

Where is lymphatic system linked with blood circulatory system?

The thoracic lymph duct opens into subclavian vein of circulatory system.

What are lymph nodes?

Along the pathway, the lymph vessels, have, at certain points, masses of connective tissue where lymphocytes are present, these are lymph nodes.

Where are lymph nodes present.

Lymph nodes are present in the neck region, axilla and groin of humans.

Name some lymphoid masses.

The larger masses are spleen and thymus. Tonsils and adenoids are also lymphoid masses. These produce lymphocytes.

What is the life span of erythrocytes (RBC)?

The average life span of red blood cell is about four months.

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