Cardiovascular
system
Digestive
System
Endocrine
System
Integumentary
system
Lymphatic
System
100

This organ pumps blood throughout the body

the Heart

100

This organ breaks down food and absorbs nutrients

the stomach

100

This organ/gland works for both the digestive and endocrine systems, its main production is insulin and glucagon to regulate blood sugar

the pancreas

100

This is the largest organ of the body

the skin

100

This fluid circulates in lymph vessels and helps fight infections

lymph

200

These blood vessels carry blood AWAY from the heart

Arteries

200

This anatomical location is the first site where digestion takes place

the mouth/oral cavity

200

This gland produces hormones that regulate metabolism

thyroid

200

This outer layer of the skin contains dead cells and provides a waterproof barrier

the epidermis

200

This organ filters blood, recycles old red blood cells, and helps fight infection

spleen

300

this is the largest artery in the body

the Aorta

300

This long tube connects the throat to the stomach

the esophagus 

300

This protein gives skin, hair, and nails their strength and resilience

keratin

300

this organ is the primary organ of the lymphatic system that produces and matures white blood cells (located in the chest)

thymus

400

These tiny blood vessels allow exchange of oxygen, nutrients, and waste between tissues, veins and arteries

Capillaries

400

This long, coiled organ absorbs most of the nutrients from food and is divided into three parts: the duodenum, jejunum, and ileum

the small intestine

400

Melanocytes are cells that produce this protective pigment that gives color to the skin, hair, and eyes 

melanin

400

These lymphatic tissues, located at the back of the throat, help trap and fight pathogens entering through the mouth and nose

Tonsils

500

These paired arteries located on the sides of the neck carry oxygen-rich blood from the heart to the brain

carotid arteries

500

This is roughly how many major sphincters regulate food movement through the digestive tract

bonus 500: if you can name all of them or point to them

5 sphincters

500

This chronic skin condition causes red, itchy, and inflamed patches, often triggered by allergies, irritants, or genetics

Eczema

500

Found in lymphoid organs, B-cells (white blood cell) produce this protein that helps the body recognize and neutralize foreign invaders like bacteria and viruses

Antibodies