Question: Which tissue carries oxygen around the body?
Answer:
- Blood is a type of connective tissue that carries oxygen around the body.
- Within the blood, there are specialized cells called red blood cells (erythrocytes) that are responsible for carrying oxygen.
- Red blood cells contain a protein called hemoglobin, which binds to oxygen in the lungs and releases it in tissues.
- As blood circulates through the body, red blood cells pick up oxygen from the lungs during inhalation and deliver it to cells in different organs and tissues.
| Aspect | Description |
| Function
|
· Carries oxygen, nutrients, hormones, and waste products to and from cells.
· Fights against pathogens and foreign substances through white blood cells and antibodies. · Helps maintain body temperature, pH balance, and fluid balance · Clotting: Forms blood clots to prevent excessive bleeding. |
| pH | · The pH of blood is slightly alkaline, ranging from 7.35 to 7.45. |
| Components | · Red Blood Cells (Erythrocytes
· White Blood Cells (Leukocytes) · Platelets · Plasma |
| Amount in Body | · In an average adult, blood volume is approximately 5 liters (about 8% of body weight). |
| Production | · Blood cells are formed in the bone marrow through a process called hematopoiesis.
· Red blood cells, white blood cells, and platelets are continuously produced to replenish the blood supply. |
| Unique Facts
|
· Blood is composed of about 55% plasma and 45% cellular components
· The average lifespan of a red blood cell is around 120 days · Blood type is determined by the presence or absence of specific antigens on the red blood cell surface · Blood can be donated and transfused to save lives |