(Blood system)

Things that our heart transports:

1. Oxygen

2. Nutrients

3. Antibodies

4. Hormones

5. Heat

6. Carbon dioxide

7. Urea

   components of blood

   plasma: water, dissolves or carries components

   erythrocytes : transports oxygen in hemoglobin molecules

Leukocytes: phangocytes

The circulatory system transports various substances vital for bodily functions. Key components of this system include:

• Oxygen: Delivered to cells for metabolism.

• Nutrients: Essential for energy and growth.

• Antibodies: Part of the immune response.

• Hormones: Regulatory substances for bodily functions.

• Heat: Regulates body temperature.

• Carbon dioxide: A waste product transported for excretion.

• Urea: Another waste product carried out of the body.

Blood Plasma Components:

• Water: Major component that dissolves and transports materials.

Types of Blood Cells:

• Erythrocytes: Red blood cells that carry oxygen via hemoglobin.

• Leukocytes: White blood cells that function as part of the immune system.

• Tymphocytes: (B- cells and T- cells) for the immune response

• Platelets: clotting blood

Blood vessels

Arteries: sends high pressure blood from the heart.

Vains: NO oxygen, less pressure, carries low pressure blood back to the heart.

Capillaries: Very small (all around you body) (10 microns diameter)