toxicokinetics

Toxicokinetics is the study of the physiological processes associated with

• Oxidative stress

• Cellular respiration

• Effects of toxins on tissues

• Movements of toxins in the body

Toxicant enter the body by inhalation are absorbed in the

• small intestine

• nasal mucosa

• lungs

• stomach

Select the most appropriate route of toxicant entrance for a 14 year-old boy who felt from a bicycle and bleed his leg

• ingestion

• injection

• inhalation

• direct contact

What is the exposure route for the following toxicants

- carbon monoxide

- gasoline fume

- glass fibers

- plywood dust

• Ingestion

• Direct contact

• Intravenous

• Inhalation

Which of the following routes is the MOST rapid

exposure to a chemical?

• Ingestion

• Inhalation

• Injection

• Direct contact

The organ that removes metabolic wastes including urea, excess water, and salts from the blood.

• lung

• liver

• kidney

• colon

The organ whose excretory functions include detoxification of the blood and formation of urea.

• liver

• kidney

• heart

• gall bladder

The waste products produced by cellular life processes the most important of which are carbon dioxide, water, urea and mineral salts.

• ATP

• metabolic wastes

• feces

• enzymes

Another term for sweating; removal of water, salt and urea through the sweat glands in the skin.

• perspiration

• respiration

• reabsorption

• transport

Which excretory organ eliminates water and some chemical wastes in perspiration?

• lungs
• skin
• liver
• kidneys