4. in which part does digestion begin?
A.Esophagus
B.Mouth
C.Anus
D.Intestine
5.Which of the following statements best describes the skin?
A.The largest sense organ
B.Receives information about your environment
C.Protects your body in any way
D.All of the above
6.Which one of the following is NOT a primary function of the integumentary system?
A.Protection
B.Secretion
C.Reproduction
D.Sensation
7.Which is affected when a person suffers from first degree burns?
A.Epidermis
B.Excoriation
C.Dermis
D.Subcutaneous layer
8.Which is food finally digested and absorbed?
A.Smal intestine
B.Esophagus
C.Large intestine
D.Mouth
Answers & Comments
Answer:
4. B.
5. D.
6. C.
7. A.
8. A.
Explanation:
4. Mouth. The digestive process starts in your mouth when you chew. Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach. Saliva also has an enzyme that begins to break down starches in your food.
5. The skin is the largest organ of the body, with a total area of about 20 square feet. The skin protects us from microbes and the elements, helps regulate body temperature, and permits the sensations of touch, heat, and cold.
6. I'm not really sure definitely between C or D
7. Superficial first-degree burns affect only the epidermis, or outer layer of skin. The burn site is red, painful, dry, and with no blisters. Mild sunburn is an example. Long-term tissue damage is rare and usually consists of an increase or decrease in the skin color.
8. As the food is digested in the small intestine and dissolved into the juices from the pancreas, liver, and intestine, the contents of the intestine are mixed and pushed forward to allow further digestion. Finally, all of the digested nutrients are absorbed through the intestinal walls