What is the main function of the digestive system?
To break down food and absorb nutrients
What substance in the mouth begins breaking down starches?
Saliva (salivary amylase)
What is the main function of the urinary system?
To remove wastes and extra water from the body
What does the endocrine system use to send messages through the body?
Hormones
Which body system includes the stomach?
The digestive system
What organ produces bile to help digest fats?
The liver
In which organ does most nutrient absorption occur?
The small intestine
What organ filter blood to make urine?
The kidneys
What gland is often called the "master gland"?
The pituitary gland
Which body system removes liquid waste from the body?
The urinary system.
What muscular tube carries food from the mouth to the stomach?
The esophagus
What is the process of breaking food into smaller pieces called?
Digestion
What tube carries urine from the kidneys to the bladder?
The ureters
What hormones help control blood sugar levels
Insulin
Which endocrine gland produces insulin?
The pancreas
What is the name of the finger-like structures in the small intestine that absorb nutrients
Villi
What type of nutrient is the body's main source of quick energy?
Carbohydrates
What is the tiny filtering unit inside the kidneys called?
The nephron
What gland in the neck controls metabolism?
The thyroid gland
Which digestive organ absorbs most water from undigested food?
The large intestine
Which digestive organ produces insulin and digestive enzymes?
The pancreas
What is the wave-like muscle movement that pushes food through the digestive tract?
Peristalsis
What organ stores urine before it leaves the body?
The bladder
What hormone is released during stress as part of the "flight or flight" response?
Adrenaline (epinephrine)
Which hormone helps the body lower blood sugar after eating?
Insulin