Renal System Processes Overview

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What is the function of glomerular filtration?

Moving waste materials into the filtrate

Forming filtrate in the kidneys (correct)

Reabsorbing water and solutes

Returning important substances to the body

Which process involves returning important substances from the filtrate back to the body?

Solutes Reabsorption

Tubular Reabsorption (correct)

Tubular Secretion

Glomerular Filtration

Where do most blood solutes move during glomerular filtration?

Back into the glomerular capillaries

Into the blood vessels

Into the renal tubule

Into the glomerular capsule (correct)

What happens during tubular secretion?

Waste materials from the blood are moved into the filtrate Signup and view all the answers

Which process involves almost all water and solutes being reabsorbed and returned to the blood?

Tubular Reabsorption Signup and view all the answers

What is the main hormone responsible for releasing glucose via gluconeogenesis and glycogenolysis in the post-absorptive state?

Glucagon Signup and view all the answers

Which division of the autonomic nervous system is responsible for stimulating lipolysis and glycogen breakdown in the post-absorptive state?

Sympathetic division Signup and view all the answers

What is the primary way heat is lost through the conversion of water to gas?

Evaporation Signup and view all the answers

Which part of the brain is responsible for regulating heat loss and gain?

Hypothalamus Signup and view all the answers

What mechanism involves the constriction of cutaneous blood vessels to decrease heat loss at the body's surface?

Shivering Signup and view all the answers

How does a fever contribute to inhibiting bacterial growth?

By increasing metabolic rate Signup and view all the answers

Which hormone is responsible for increasing blood glucose levels by promoting gluconeogenesis during stress?

Cortisol Signup and view all the answers

What is the primary metabolic fate of fructose and galactose in hepatocytes?

Immediate ATP production Signup and view all the answers

During fasting, what is the livers primary action on blood glucose levels?

Raising blood glucose by breaking down glycogen Signup and view all the answers

Which hormone is responsible for facilitating the storage of glucose as glycogen in the liver?

Insulin Signup and view all the answers

What is the primary function of glucagon when blood glucose levels decrease?

Stimulates breakdown of glycogen Signup and view all the answers

Which type of lipoprotein carries cholesterol that accumulates as plaque in blood vessels?

Low-density lipoprotein (LDL) Signup and view all the answers

What is the primary role of high-density lipoproteins (HDL) in lipid metabolism?

Pick up excess cholesterol and return it to the liver Signup and view all the answers