The digestive system enables your body to convert food into usable nutrients through a chemical breakdown process. This occurs through a system of tube-like of organs, including the esophagus, stomach, liver, pancreas, and intestines. The skeletal system gives the body its basic framework, providing structure, protection, and movement. The bones in the body also produce blood cells, store important minerals, and release hormones necessary to life.
The muscular system is comprised of the sum total of muscles throughout the body that move the skeleton, maintain posture through steady contraction, and generate heat through cell metabolism.
Humans have three types of muscle. The nervous system allows us to perceive, comprehend, and respond to the world around us. The female reproductive system encompasses all necessary female organs needed to conceive and bear a child. The male reproductive system consists of a series of organs used during sexual intercourse and procreation.
The primary organs are the gonads, or sex glands, which produce sperm. In men, these are the testes. Cardiovascular system The heart and blood vessels make up this system. The heart is a pump forcing blood into a network of blood vessels allowing it to travel to organs and delivery sites requiring oxygen gas for respirationnutrients and the removal of waste substances. Digestive system This system resembles a long tube with attached organs.
Ingested food is broken down into constituent nutrient molecules that are then absorbed into the bloodstream. Indigestible remains are then egested. Endocrine system Composed of a number of small organs distributed throughout the body, the endocrine system coordinates the metabolic activity of body cells by interacting with the nervous system. Endocrine glands produce hormones chemical messengers released into the blood and transported to target sites around the body. Excretory system The excretory system is composed of the kidneys urine-forming organs , the bladder temporary storage for urine and channels for moving this liquid waste around.
Kidneys are blood purifiers filtering liquid from the bloodstream, removing undesirable substances such as toxins and returning those still required to the blood. Immune system The immune system is a protection mechanism composed of specialised cells, cell products, tissues, organs and processes within an organism that protect against pathogens. Your circulatory system delivers oxygen and nutrients to the other cells of your body then picks up any waste products created by these cells, including carbon dioxide, and delivers these waste products to the kidneys and lungs for disposal.
Each of your body systems relies on the others to work well. Your respiratory system relies on your circulatory system to deliver the oxygen it gathers, while the muscles of your heart cannot function without the oxygen they receive from your lungs.
The bones of your skull and spine protect your brain and spinal cord, but your brain regulates the position of your bones by controlling your muscles. The circulatory system provides your brain with a constant supply of oxygen-rich blood while your brain regulates your heart rate and blood pressure.
Even seemingly unrelated body systems are connected. Your skeletal system relies on your urinary system to remove waste produced by bone cells; in return, the bones of your skeleton create structure that protects your bladder and other urinary system organs.
Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. This body system includes the kidneys, ureters, bladder, sphincter muscles, and urethra. The integumentary system is an organ system that protects the body from damage, loss of water, or abrasion from outside. This body system includes human skin, hair, and nails. The reproductive system is a combination of bodily organs and tissues used in the process of producing offspring.
The digestive system breaks down food, extracts nutrients into the bloodstream, and excretes waste. This body system is made up of the digestive tract, liver, pancreas, and gallbladder. Does learning about the anatomy and physiology of different body systems interest you? Are you ready for a rewarding career as a medical assistant? The Medical Assistant program at Hunter Business School prepares competent, entry-level medical assistants in the cognitive knowledge , psychomotor skills , and affective behavior learning domains required for professional practice.
Contact us today to find out more about how to become a medical assistant on Long Island. Skip to content. Body System 1: Skeletal System The skeletal system is the framework of the body that is held together by tendons, ligaments, and cartilage. Diseases and Disorders of the Skeletal System Osteoporosis — This disorder is prevalent in the elderly. The bone loses calcium and becomes thinner, resulting in the loss of bone tissue in the body. Body System 2: Nervous System The nervous system is a network of nerve cells and fibers that transmit nerve impulses throughout the body.
Diseases and Disorders of the Nervous System Epilepsy — This disorder results in abnormal electrical discharges from brain cells causing seizures. Body System 3: Muscular System The muscular system aids in movement, blood flow, and other bodily functions.
0コメント