Question

(a) State one difference between arteries and veins.
​(b) Name any two sexually transmitted diseases. What advice is given to prevent them?

Answer 1

Answer:

a). Arteries, like veins, are tube-shaped vessels that carry blood in the body. The chief difference between arteries and veins is the job that they do. Arteries carry oxygenated blood away from the heart to the body, and veins carry oxygen-poor blood back from the body to the heart.

b). aids ,

Answer 2

Answer:

a) ARTERIES                                                  VEINS

1. It distributes blood from heart to            1.  It takes blood from the body                      organs                                                              to the heart

2. The walls of arteries are thick     2. The walls of veins are thin

3. Arteries are embedded deep     3. Veins are superficial

4. Arteries have no valve                     4. Veins have valve

5. Except pulmonary artery all              5. Except pulmonary vein all carry

carry oxygenated blood                        de-oxygenated blood

b) the two sexually transmitted diseases are:

i) syphillis

ii) Gonorrhea

to prevent std's following precautions should be taken

1. avoid sharing of towels

2. use of protection while intercourse

3. get vaccinations for the disease

4. check up for HIV

5. no same injections should be used for different patients