Lesson 1 Body Organization: Tissues and Basic Concepts

Which pairing matches the tissue to its function correctly?

• Muscle tissue—covers body surfaces

• Epithelial tissue—sends brain signals

• Connective tissue—contracts to move

• Nerve tissue—carries electrical signals

Choose the best explanation for how the digestive and circulatory systems work together.

• They both produce electrical impulses

• They both protect organs from pathogens

• They deliver nutrients from digestion to cells

• They both move bones to create motion

Which statement about body organization is accurate?

• Similar cells grouped by function form a tissue

• Skin is the smallest organ in the body

• Organs are made of one kind of tissue only

• Systems are single organs working alone

Which statement correctly defines a body system?

• A fluid transporting nutrients

• A tissue layer covering bones

• A group of organs working together

• A single organ filtering blood

Which kidney tissue gives the organ structure and protects the nephrons that filter blood?

• Nerve cell

• Epithelial tissue

• Renal capsule

• Muscle cell

How many major organ systems work together to keep the human body running smoothly?

• Ten systems

• Eleven systems

• Nine systems

• Twelve systems

Which system communicates using the brain, spinal cord, and nerves?

• Integumentary system

• Muscular system

• Endocrine system

• Nervous system

Which pair of skin structures helps keep skin waterproof and maintain comfortable temperature?

• Hair follicles and nails

• Sweat glands and oil glands

• Bones and connective tissue

• Blood vessels and muscles

Which vessels typically carry blood back toward the heart and lungs?

• Capillaries carry blood to the heart

• Veins carry blood to the heart

• Arteries carry blood to the lungs

• Red blood cells carry blood to the heart

A student is short of breath after exercise. Which two systems must coordinate to restore oxygen levels in cells?

• Immune and integumentary systems

• Respiratory and circulatory systems

• Digestive and excretory systems

• Nervous and endocrine systems