Blood

Question 1

3 circulatory pathways

Answer 1

1. Systemic pathway:
   - To and from the body organs
2. Pulmonary Pathway:
   - To and from the lung
3. Cardiac pathway:
   - To and from the heart muscles

Question 2

4 parts of blood

Answer 2

1. Red blood cells (45%)
2. White blood cells (1%)
3. platelets (1%)
4. Plasm a(55%)

Question 3

Red blood cells

Answer 3

Erythrocytes
- Specialized for oxygen transportation within iron-containing hemoglobin (molecule that carries oxygen)

Biconcave shape (no nucleus) increases the surface area for gas exchange.

Hemoglobin can also carry C0z from the cells to lungs

Question 4

White blood cells

Answer 4

WBC or leukocytes
- Defend body against bacteria and viruses
- The WBC increase when fighting an infection

Question 5

5 types of WBC

Answer 5

Monocyte:

Find and destroy germs and also eliminate infected cells.

Eosinophil:

inflamed areas, trap substances and kill cells, and they play a big role in allergic reactions

Basophil:

Respond to parasites, fungi, and cancer cells

Lymphocytes:

\killing of virus, kill of infected cells, and tumor cells, help the immune system

Neutrophil:

Defense against bacteria and fungal pathogens

Question 6

Platelets

Answer 6

Thrombocytes

• Help with clotting basically they react with the plasma to create a temporary clot (thrombus) to stop the leak of blood from the vessel.

Gather at a site of damaged cells

Question 7

Plasma

Answer 7

yellowish fluid
92% water
Functions:
Carries sold blood components through the blood vessels. As well as water, enzymes, protein, ions, salts, gases, nutrients

Question 8

What does Low RBC Means

Answer 8

leads to iron deficiency (amenia). There enough blood to carry oxygen to the parts needed so this will make the person feel tired.

Not eating enough iron or excess of bleeding

Question 9

What does high white blood cell count mean

Answer 9

• A sign that the body is fighting an infection
• a symptom of leukemia.