Chapter 12 Quiz
1. Muscular dystrophy is characterized by
A. the gradual deterioration of skeletal muscles.
B. the uncontrolled growth of certain kinds of muscle cells.
C. the production of mutated muscle cells that do not function properly.
D. the destruction of skeletal muscles by the unregulated production of dystrophin.
2. What is spina bifida?
A. a congenital curvature of the spine
B. a congenital fusion of two or more vertebrae
C. a malformation of the tube surrounding the spinal cord
D. a failure of the skull to attach to the spinal column during development.
3. The risk of spina bifida is reduced when pregnant women consume adequate amounts of
A. fiber.
B. folic acid.
C. vitamin A.
D. vitamin C.
4. Fifteen-year-old Rodney has a pronounced twist in his backbone that seems to get worse as he grows. He probably has
A. spina bifida.
B. thoracica.
C. scoliosis.
D. talipes.
5. Hyperglycemia occurs when
A. the blood contains an abnormally low amount of glucose.
B. excessive amounts of glucose accumulate in the blood.
C. abnormal quantities of glucose pour into cells.
D. the body cannot produce enough insulin.
6. Your father recently developed non-insulin-dependent (type II) diabetes. What form of treatment will most likely be required?
A. diet and exercise
B. drug therapy
C. radiation
D. surgery
7. Type I (insulin-dependent) diabetes occurs when
A. the body becomes insensitive to insulin.
B. the body loses its ability to produce insulin.
C. the pancreas starts to release an ineffective form of insulin.
D. the body develops a hypersensitivity to insulin and excretes most of it in the urine.
8. Lactose intolerance occurs when
A. the body loses its ability to convert milk sugar into glucose.
B. there is already too much glucose in the bloodstream.
C. consuming dairy products produces hyperglycemia.
D. the body develops an allergy to milk products.
9. The damage caused by multiple sclerosis centers on
A. the acceleration of the physical process of aging.
B. the disruption of circulation in the extremities.
C. the collapse of the immune system.
D. the destruction of nerve tissues.
10. Parkinson's disease occurs when
A. the immune system attacks nerve tissues throughout the body.
B. conduction of nerve impulses within skeletal muscles begins to deteriorate.
C. the brain fails to produce enough dopamine to coordinate muscular activity.
D. the brain becomes unable to properly manage involuntary motor movements.