Human Biology

Explore how groups of specialized cells form tissues with distinct structures and functions in the human body.

Epithelial, connective, muscle, and nervous tissues — structure and roles in the human body.

Learn how food is broken down, absorbed, and utilized for energy and growth.

Understand how blood circulates through the heart and vessels to transport oxygen, nutrients, and waste.

Study the components of blood — red cells, white cells, platelets, and plasma — and their roles in the body.

Learn how the lymphatic system supports immunity and maintains fluid balance.

Understand how oxygen is brought in and carbon dioxide is expelled through lungs and airways.

Explore how the brain, spinal cord, and nerves coordinate body activities and responses.

Anatomy of a neuron including dendrites, axon, myelin, and synapses, and how it transmits signals.

Discover how we perceive the world through sight, sound, taste, smell, and touch.

Learn how different drugs affect the nervous system, organs, and body functions.

Understand how the body removes metabolic waste through organs like the kidneys.

Study how muscles contract and work with bones to produce movement.

Explore the structure and function of bones, joints, and the human skeleton.

Learn how hormones regulate growth, metabolism, and homeostasis through glands.

Understand how the body maintains internal stability despite external changes.

Study the organs and processes involved in human reproduction.

Explore how gametes are formed and how chromosome numbers are balanced between generations.

Learn how puberty is triggered and regulated by hormonal changes in the body.

Discover how the body defends itself using white blood cells, antibodies, and barriers.

Study the skin and its role in protection, sensation, and regulation.