Body Systems Notes

Multicellular Organisms

• Multicellular organisms need specialized organs and systems (8.1)
• Relationship between cells, tissues, organs, and systems (8.1)

Digestion and Nutrition

• Animals need to eat food (8.2)
• Roles of carbohydrate, protein, lipid, vitamins, and minerals in the diet (8.2)
• Digestive system diagram labeling (8.3)
• Function of main digestive organs (8.3)
• Distinction between mechanical and chemical digestion (8.4)
• Roles of enzymes and teeth in digestion (8.4)

Dietary Deficiencies

• Reasons for concern about rising childhood obesity and proposed strategies (8.5)
• Diseases linked to vitamin D and folate deficiency (8.5)
• Information about the work of dietitians (8.5)

Circulatory and Respiratory System

• Roles of respiratory and circulatory systems in maintaining functioning organisms (8.6, 8.8)
• How air goes in and out of the lungs (8.6)
• Events in an alveolus (8.6)
• Structure of the heart (8.8)
• How the heart circulates blood (8.8)
• Define (8.8)
• How blood circulation assists waste removal (8.9)

Excretory System

• Why waste excretion is essential (8.9)
• Urinary system diagram labeling (8.9)
• Roles of main excretory organs (8.9)
• Define the term (8.9)

Musculoskeletal System

• Labeling major bones of the human skeletal system (8.10)
• Role of the skeletal system (8.10)
• How muscles and bones allow movement (8.10)
• Structure of bones (8.10)
• Examples of hinge, pivot, and immovable joints (8.10)