Foundations of Biology Human
Week 5: Tissue fluid, lymph and Urinary System
1b) What causes this pressure? (think about the key words you need to use to answer this question)
2a) Which substances are dissolved in the plasma which leaves the capillary?
2b) Which substances are too large to pass through the capillary wall so stay in the capillary?
3b) What causes this pressure? (think about the key words you need to use to
answer this)
The Immune system
1. Label the organs of the lymphatic system and briefly describe their function
2. Complete the gaps in the table below:
NON-SPECIFIC defence
(against ANY type of pathogen)
First line of defence
Second line of defence
SPECIFIC defence
(against ONE specific type of pathogen)
Third line of defence
I_________ IMMUNITY
A___________ IMMUNITY
(we have it from birth)
(we acquire it throughout life and
exposure to pathogens)
3. Name three types of physical barrier to entry of microorganisms into the human body
1.……………………………………………………………….
2.……………………………………………………………….
3.……………………………………………………………….
4. What are two different functions of T cells:
1. ……………………………………………………................
2. …………………………………………………………………
5. What do B- cells produce? ……………………………………………………………………………………………..
6. Complete the following chart: