Human Anatomy Study Guide

Hierarchical Organization (Nervous System): Which of the following sequences correctly shows the levels of organization for the nervous system from smallest to largest?

• Nerve cell → Nerve tissue → Organ (brain) → Nervous system

• Nervous system → Organ (brain) → Nerve tissue → Nerve cell

• Nerve tissue → Nerve cell → Organ (brain) → Nervous system

• Organ (brain) → Nerve cell → Nerve tissue → Nervous system

Smallest Level: What is the smallest level of organization within an organism?

• Tissue

• Cell

• Organ

• Organ system

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Hierarchical Statements: Select the TWO statements that are correct regarding hierarchical organization.

• A cell is the smallest level of organization within organisms.

• All human cells are identical in structure and function.

• Different organ systems interact for the survival of an organism.

• The overall function of an organism is independent of the functions of its subsystems.

Tags

NGSS.MS-LS1-3

Matching Organizational Levels: Match each level to its description (options: Cell, Tissue, Organ, Organ System). Which level matches this description: A group of similar cells that work together.

• Cell

• Tissue

• Organ

• Organ System

Matching Organizational Levels: Match each level to its description (options: Cell, Tissue, Organ, Organ System). Which level matches this description: A group of different tissues working together to perform a specific function.

• Cell

• Tissue

• Organ

• Organ System

Matching Organizational Levels: Match each level to its description (options: Cell, Tissue, Organ, Organ System). Which level matches this description: A group of organs that perform related functions.

• Cell

• Tissue

• Organ

• Organ System

Systems for Posture: Which two systems primarily maintain posture and support the body?

• Digestive and circulatory

• Muscular and skeletal

• Nervous and immune

• Endocrine and respiratory

Skin Barrier: Which epidermal layer is most crucial as a barrier against pathogens and water loss?

• Stratum basale

• Stratum corneum

• Stratum spinosum

• Stratum granulosum

Bone Adaptation: A long-distance runner’s femur adapts to increased stress by:

• Replacing compact bone with spongy bone for flexibility.

• Expanding yellow marrow to provide extra cushioning.

• Increasing osteoclast activity to remove bone, making it lighter.

• Increasing osteoblast activity, depositing more minerals to strengthen the bone.

Bone Protection: Select the THREE statements that best explain how bone structure protects vital organs.

• The vertebrae form a bony column that surrounds the spinal cord.

• The ribs are connected only to muscles, allowing the lungs to expand.

• The skull consists of fused flat bones forming a rigid case around the brain.

• The pelvic bones form a ring that protects reproductive and urinary organs.

• Long bones contain spongy bone that contracts to absorb impacts.