Each of the four body systems are listed twice. Match each system to its description as well as its picture showing its major organs.
Human bodies are complex and contain many systems within them. Each of these systems are made of organs that work together to perform a function for human life. Four major systems include respiratory, reproductive, excretory, and circulatory. While each system works independently, they also work together to keep human bodies alive and healthy.
A. This system transports blood through the body and heart.
B. This system brings oxygen into the body and rids the body of waste gases. Some organisms use their skin. This is also a cell-level process.
C. This system relates to the process by which an organism gets rid of its waste.
D. This system relates to the process by which an organism replicates. Sexually reproduction usually involves male cells (sperm) meeting female cells (eggs) to produce a fertilized egg or zygote.
Here are the matches for each body system:
A. Circulatory System - This system transports blood through the body and heart. Major organs and structures include the heart, arteries, veins, and capillaries. Its primary function is to deliver oxygen and nutrients to all cells in the body and to remove carbon dioxide and metabolic wastes.
B. Respiratory System - This system brings oxygen into the body and rids the body of waste gases. Some organisms use their skin, but in humans, the system includes the lungs, trachea, bronchi, and diaphragm. Through the process of respiration, oxygen is absorbed from the atmosphere and delivered to the bloodstream, while carbon dioxide is expelled from the body.
C. Excretory System - This system relates to the process by which an organism gets rid of its waste. In humans, it includes the kidneys, ureters, bladder, and urethra. The kidneys filter the blood to remove waste products and excess substances, which are then excreted as urine.
D. Reproductive System - This system relates to the process by which an organism replicates. In humans, the male reproductive system includes organs such as the testes, vas deferens, and , which produce and deliver sperm. The female reproductive system includes the ovaries, fallopian tubes, uterus, and , which produce eggs, enable fertilization, and support the development of the embryo and fetus.
Please note that pictures are not displayed here, so specific pictures of the systems cannot be matched but would typically show the organs and parts as described above.