Human Body

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by Ladore
Last updated 7 years ago

Human Anatomy

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Human Body

Chap. 1.1 Handout

The Human Body

Body StructuresThe abdomen contains all the digestive organs, incluiding the stomach, small and large intestines, pancreas, liver, and gallbladder. These organs are held together by connecting tissue that allow them to expand and slide against each other. The abdomen also contains the kidneys and spleen.The chest contains organs that are responsible for many functions: breathing, blood circulation, delivering oxygenated blood to your entire body, detoxifying your blood, and producing cells to stay healthy.The head is in charge of many important duties such as ingestion of nutrients, intake of air, use of senses such as vision, hearing, tasting, feeling and smelling. The head also provides communication, mind, and brain function.

The cardiovascular system is responsible for transporting nutrients, oxygen, and hormones to cells; protecting the body with white blood cells; and regulating body temperature of the cells. It consists of the heart, blood vessels, and blood.The digestive system converts food into essential nutrients and moves the unused waste material out of the body. It contains the mouth, liver, stomach, gallbladder, intestines, appendix, pancreas, rectum, anus, and colon. The immune system protects against disease or other potentially damaging foreign bodies. It consists of the lymph nodes, spleen, bone marrow, lymphocytes, thymus, and leukocytes.The muscular system supports movement - walking, talking, sitting, standing, and all other daily functions - and helps to maintain posture and circulate blood. It consists of 650 muscles in the body! The nervous system transmits signals between different parts of the body. The central nervous system is made up of the brain, spinal cord, and retina. The peripheral nervous system consists of sensory neurons, ganglia (clusters of neurons), and nerves that connect to one another and to the central nervous system.The skeletal system performs vital functions - support, movement, protection, blood cell production, calcium storage, and endocrine regulation - that enable us to move through our daily lives. It consists of 206 bones, as well as a network of tendons, ligaments, and cartilage that connects them.The respiratory system is responsible for taking in oxygen and expelling carbon dioxide. It consists of the nasal passage, oral cavity, pharynx, larynx, trachea, bronchi, ribs, bronchioles, lungs, and diaphragm.

Body Systems

OrgansThe heart pumps blood throughout the body. The brain monitors and controls the body.The lungs allow the body to take in oxygen from the air.The stomach breaks down food and extracts from it nutrients necessary for the body.



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