Cardiovascular System FUNCTION (S): Pumps blood Blood vessels (veins, around body; transports oxygen, arteries, and capillaries) carbon dioxide, nutrients, and waste. KEY STRUCTURES: Lungs FUNCTION (S): Assists with gas Nasal cavity exchange with the external Trachea Respiratory System environment; keeps blood Bronchus supplied with oxygen and removes carbon dioxide. KEY STRUCTURES: Lymph nodes FUNCTION (S): Filters fluid in the Spleen body; mounts the attack against Thymus Lymphatic and Immune foreign substances in the body. Bone marrow System KEY STRUCTURES: FUNCTION (S): Breaks down Oral cavity food into its nutrient molecules; Esophagus absorbs nutrients; rids the body Stomach Digestive System of waste. Small intestine Large intestine Liver KEY STRUCTURES: Kidney FUNCTION (S): Eliminates waste Bladder from the body; regulates water Ureter balance of the blood. Urethra Urinary System
Cardiovascular System FUNCTION (S): Pumps blood around body; transports oxygen, carbon dioxide, nutrients, and waste. Blood vessels (veins, arteries, and capillaries) Respiratory System FUNCTION (S): Assists with gas exchange with the external environment; keeps blood supplied with oxygen and removes carbon dioxide. KEY STRUCTURES: Lungs Nasal cavity Trachea Bronchus Lymphatic and Immune System FUNCTION (S): Filters fluid in the body; mounts the attack against foreign substances in the body. KEY STRUCTURES: Lymph nodes Spleen Thymus Bone marrow Digestive System FUNCTION (S): Breaks down food into its nutrient molecules; absorbs nutrients; rids the body of waste. KEY STRUCTURES: Oral cavity Esophagus Stomach Small intestine Large intestine Liver Urinary System FUNCTION (S): Eliminates waste from the body; regulates water balance of the blood. KEY STRUCTURES: Kidney Bladder Ureter Urethra
1.3.1.a.ak_human_body_systems_matching_answer_key.docx