Human Body Systems Review

Flashcards to review the key concepts and vocabulary from the Human Body Systems notes.

Human Body Systems

Complex networks of organs and structures that work together to sustain life.

Integumentary System

The system that includes skin, hair, and nails; provides a barrier to the external environment and helps clear waste.

Skeletal System

Supports and protects the body, stores nutrients, and synthesizes blood cells.

Muscular System

Consists of muscles attached to bones that allow movement and require energy to function.

Cardiovascular System

Moves blood, nutrients, hormones, and fluids throughout the body; transports oxygen to cells.

Lymphatic System

Collects lymph fluid and returns it to the circulatory system; helps recycle and circulate immune cells.

Immune System

Identifies and eliminates harmful pathogens, destroying dead or dysfunctional cells.

Nervous System

Transmits signals throughout the body to create a response to internal and external stimuli.

Digestive System

Breaks down food to absorb nutrients and eliminate waste; digestion begins in the mouth.

Excretory System

Eliminates waste and maintains water balance; kidneys filter blood to manage waste excretion.

Endocrine System

Regulates growth and homeostasis via hormones released into the blood.

Respiratory System

Facilitates gas exchange between the body and the external environment, supplying oxygen and removing carbon dioxide.

Reproductive System

Responsible for producing offspring and passing down genetic information through gametes.

Levels of Organization

Different biological structural layers, including cells, tissues, organs, and systems that work together.

Homeostasis

The process of maintaining a stable internal environment despite external changes.

Hormones

Chemical messengers released by endocrine organs that regulate various bodily functions.

Lymph Nodes

Structures that filter lymph fluid and are crucial for a functioning immune system.

Cells

The basic unit of life, organized into tissues, organs, and systems.