Excretory System Flashcards
What is the main function of the excretory system?
To remove waste and excess substances from the body
Which organ is responsible for filtering waste from the blood in the excretory system?
Kidneys
True or False: The skin plays a role in the excretory system by eliminating waste through sweat.
True
What is the functional unit of the kidney responsible for filtering blood?
Nephron
Which hormone regulates water reabsorption in the kidneys?
Antidiuretic hormone (ADH)
What is the term for the process of removing metabolic waste from the body in the form of urine?
Excretion
Which structure connects the kidneys to the bladder?
Ureters
What is the name of the tube through which urine is expelled from the body?
Urethra
Which organ in the excretory system stores urine until it is ready to be expelled?
Bladder
What is the term for the process of removing waste through the digestive tract?
Defecation
Which ion is regulated by the kidneys to maintain electrolyte balance?
Sodium (Na+)
True or False: The liver plays a role in the excretory system by breaking down toxins and producing bile.
True
What is the name of the process by which ammonia is converted into urea in the liver?
Urea cycle
Which structure in the nephron is responsible for reabsorbing water and nutrients back into the blood?
Proximal convoluted tubule
What is the name of the hormone produced by the kidneys that stimulates red blood cell production?
Erythropoietin
Which part of the brain regulates thirst and water balance to influence kidney function?
Hypothalamus
What is the term for the process of removing waste through the respiratory system?
Exhalation
Which type of waste is primarily eliminated through the lungs?
Carbon dioxide (CO2)
True or False: The excretory system is responsible for maintaining acid-base balance in the body.
True
What is the medical term for the condition of excessive accumulation of waste products in the blood?
Uremia
Which gland produces aldosterone, a hormone that regulates sodium and potassium levels in the body?
Adrenal gland
What is the name of the blood vessel that carries blood to the kidneys for filtration?
Renal artery
Which substance is the primary waste product of protein metabolism excreted by the kidneys?
Urea
True or False: The excretory system plays a role in maintaining blood pressure by regulating fluid balance.
True
Nitrogenous wastes are mainly made up of which 3 components
Ammonia, Urea, Uric acid
Ammonatelic animals secret what as their excretory product
Ammonia as waste
which animal requires :
⇒ large amount of water for excretion
⇒ less Water for excretion
⇒ almost no Water
⇒ Ammonatelic animals
⇒ ureatelic animals
⇒ uricatelic (uric acid)
urea in humans in produced in which organ
Liver
due to excess Uricacid in humans what disease is caused
Gout
