Human Body Systems – Study Notes

These flashcards cover key concepts of the human body systems including main organs and functions.

Cardiovascular System

Supplies organs and tissues with oxygenated, nutrient-rich blood and removes waste products.

Main Organs of Cardiovascular System

Heart, Blood, Blood vessels, Lungs.

Respiratory System

Allows oxygen to enter the body and removes carbon dioxide.

Main Organs of Respiratory System

Lungs, Trachea, Bronchi, Larynx, Pharynx.

Digestive System

Breaks down food and absorbs nutrients for energy and growth.

Main Organs of Digestive System

Stomach, Intestines, Liver, Pancreas.

Nervous System

Controls body activities, responses, and communication between body parts.

Main Organs of Nervous System

Brain, Spinal cord, Nerves.

Skeletal System

Provides structure, support, and protection for internal organs.

Main Organs of Skeletal System

Bones, Cartilage, Joints.

Muscular System

Enables movement, maintains posture, and produces heat.

Main Organs of Muscular System

Muscles, Tendons.

Endocrine System

Regulates hormones and body functions such as growth and metabolism.

Main Organs of Endocrine System

Thyroid gland, Adrenal glands, Pituitary gland.

Urinary System

Removes waste from the blood and regulates fluid balance.

Main Organs of Urinary System

Kidneys, Bladder, Urethra.

Reproductive System

Produces reproductive cells and supports reproduction.

Main Organs of Reproductive System

Ovaries, Testes, Uterus.

Lymphatic / Immune System

Protects the body against infections and diseases.

Main Organs of Lymphatic / Immune System

Lymph nodes, White blood cells.

Integumentary System

Protects the body, prevents water loss, and helps regulate temperature.

Main Organs of Integumentary System

Skin, Hair, Nails.