The Excretory System Quiz

Excretion and Temperature Regulation

• The skin plays a major role in controlling body temperature.
• The lungs excrete both carbon dioxide and water.
• The kidneys are the main organs of excretion and homeostasis in the human body.
• The outer layer of the kidney is called the cortex.
• The thin tube that connects the pelvis of the kidney to the bladder is called the ureter.
• Filtered and purified blood leaves the kidney through the renal vein.
• The production of weak, watery pale urine to increase the concentrations of bodily fluids is called diuresis.
• The production of dark-colored, strong, concentrated urine is caused by dehydration.
• The adrenal glands are located on top of the kidneys.
• There are four organs of excretion in the human body: kidneys, skin, liver, and lungs.
• The nephrons in the kidney do not produce hormones.
• Anti-diuretic hormone (ADH) regulates the amount of water reabsorbed by the kidneys into the bloodstream.
• Ectotherms, such as reptiles, obtain the heat they require from the environment.

Sweat and Temperature Regulation

• Sweat plays a crucial role in temperature regulation by evaporating and cooling the body.
• The hypothalamus acts as the thermostat of the body, regulating temperature control.
• Shivering is not a cooling mechanism of the body.
• During temperature regulation, blood vessels near the skin's surface dilate to release heat.
• The erector muscle is not involved in temperature regulation.
• The loop of Henle is involved in the reabsorption of ions and water in urine production.
• When the blood becomes more dilute due to drinking a lot of water, the kidneys produce more dilute urine.