Body Organization
What is the correct order of body organization from smallest to largest?
Cells → Tissues → Organs → Organ Systems
What is the smallest unit of life?
A cell
What is a group of organs working together called?
Organ system
What is the largest part of the brain responsible for thinking and memory?
Cerebrum
What chamber of the heart pumps blood to the lungs?
Right ventricle
What is homeostasis?
Maintaining stability or balance in the body.
What is a large mass of similar cells that perform a specific function?
Tissue
Which body system breaks down food into nutrients?
Digestive system
What part of the brain controls balance and coordination?
Cerebellum
What chamber receives oxygenated blood from the lungs?
Left atrium
What level of organization comes after tissues?
Organs
True or False: Tissues are more complex than organs.
False
Which body system allows us to move using muscles and bones?
Musculoskeletal system
What part of the brain connects the brain to the spinal cord?
Brain stem
What is the large artery that carries blood from the heart to the body?
Aorta
What level of organization comes after organs?
Organ systems
What type of tissue includes bones, cartilage, and blood?
Connective tissue
Which body system moves materials around the body?
Circulatory system
What brain structure helps relay sensory information?
Thalamus
What valve separates the left atrium and left ventricle?
Mitral (bicuspid) valve
What is an organism?
A living being made up of cells, tissues, organs, and organ systems.
What are the two things that combine to form organs?
Cells and tissues
Which body system allows us to sense stimuli like sight, sound, and taste?
Nervous system
Which body system includes the brain, spinal cord, and nerves?
Nervous system
What vein brings blood from the lower body to the heart?
Inferior vena cava