What is the main function of the skin?
protection
What is the basic unit of the nervous system?
neuron
What is the main function of the heart?
To pump blood through the body
What is the main function of the digestive system? (2 parts)
Break down food and absorb nutrients
What is the main function of the endocrine system?
produce hormones
What protein gives skin its strength and flexibility?
collagen
Which part of the brain controls balance and coordination?
cerebellum
What blood vessels carry blood away from the heart?
arteries
What is the main function of the urinary system?
Remove waste and regulate water balance
Which gland is called the “master gland”?
Pituitary Gland
Name the three layers of skin.
Epidermis, Dermis, Subcutaneous (fatty) tissue
What carries messages from the brain to the body?
motor nerves
Where does gas exchange occur in the lungs?
alveoli
Where does most nutrient absorption occur?
small intestine
What are the male and female reproductive cells called?
sperm and ovum (egg) / ova (eggs)
What purpose do muscles serve? (hint- there's three!)
Movement, posture, and heat production
What is the function of the spinal cord?
Transmits messages between brain and body
Which side of the heart pumps oxygenated blood?
left side
What is the functional unit of the kidney?
nephron
What organ helps fight infection by producing lymphocytes?
lymph nodes or spleen
What connects muscles to bones?
tendons
Which sense organ contains the retina?
the eye
What is the function of hemoglobin?
Carries oxygen in red blood cells (RBC).
Which organs produce AND store bile?
Liver and Gallbladder
What hormone regulates blood sugar?
insulin