Expert: Walter Hintz - 9/15/2005

Question
I need your help on some problems that Im having, all you have to do is write the letter of the word that completes the sentence.

1. The pigment that protects skin cells from solar radiation is (A) melanin (B) keratin (C) dermis

2. The muscle tissue illustrated to the right would most likely be found in the (A) muscles which move the upper arm (B) the muscles in the walls of the small intestine (C) the heart

3. The blood cells that carry oxygen to body cells and remove waste gases are the (A) platelets (B) red blood cells (C) white blood cells

4. A person who has type O blood can recieve a transfusion from which other type without clumping (A) type A (B) Type B (C) neiher of these

5. The aorta is an (A) artery (B) vein (C) capillary

6. Pathogens that cause llness by producing toxins are (A) viruses (B) bacteria (C) fungi

7. Drugs that affect the central nervous system and relieve pain are (A) analgesics (B) narcotics (C) barbiturates

8. The series of smooth muscle contractions which move food through the digestive tract are called (A) peristalsis (B) muscular churning (C) epiglottis

9. The chemicals which cross the synaptic space from the axon to the dendrites are called (A) myelin (B) neurotransmitters (C) calcium

10. The part of the barin that controls balance, posture, and cooridination is the (A) cerebrum (B) frontal lobe (C)cerebellum

Answer
Hi Lindsey: It seems to me that these are questions that you can easily find answers to in your book.  I will answer these but from now on do some research and if you cannot find out or do understand I will help you. I am not helping you by doing your homework for you.
1A
2 I can't answer without the illustration
3B
4C
5A
6ALL ARE CORRECT
7ALL ARE CORRECT
8A
9B
10C