The Human Body Flashcards

Grade 2 · Science · Flashcards

Review key vocabulary about the major systems of the human body.

Flashcards

Skeletal system: All 206 bones in the body; provides shape, support, and protects organs
Muscular system: All muscles in the body; enables movement by pulling on bones
Digestive system: Breaks food into nutrients: mouth → esophagus → stomach → intestines
Respiratory system: Brings oxygen in and pushes carbon dioxide out through the lungs
Circulatory system: Heart and blood vessels that pump blood with oxygen to all body parts
Nutrient: Substance from food (protein, carbs, vitamins) used for energy and growth
Heart: Muscle that pumps blood throughout the body; beats about 100,000 times/day
Lungs: Organs that take in oxygen and release carbon dioxide when you breathe
Bones: Hard structures that make up the skeleton; protect organs and enable movement
Muscles: Tissues that contract to move the body; attached to bones by tendons
Brain: Controls all body systems and processes information from the senses
Organ: A body part with a specific job — heart, lungs, stomach, and brain are organs