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May 26, 2024 · human body, the physical substance of the human organism, composed of living cells and extracellular materials and organized into tissues, organs, and systems. Human anatomy and physiology are treated in many different articles.
The human body is composed of elements including hydrogen, oxygen, carbon, calcium and phosphorus. These elements reside in trillions of cells and non-cellular components of the body. The adult male body is about 60% water for a total water content of some 42 litres (9.2 imp gal; 11 US gal).
There are 12 major anatomy systems: Skeletal, Muscular, Cardiovascular, Digestive, Endocrine, Nervous, Respiratory, Immune/Lymphatic, Urinary, Female Reproductive, Male Reproductive, Integumentary. Select a system below to get started.
List of Human Body Parts. Human body parts comprise a head, neck and four limbs that are connected to a torso. Giving the body its shape is the skeleton, which is composed of cartilage and bone.
Nov 3, 2023 · The human body is a biological machine made of body systems; groups of organs that work together to produce and sustain life. Sometimes we get lost while studying about cells and molecules and can’t see the forest for the trees.
Learn human anatomy with names & pictures in our brief guide. Perfect for students & medical professionals to know about human body parts.
The biology of the human body includes. Physiology (how the body functions) Anatomy (how the body is structured) Anatomy is organized by levels, from the smallest components of cells to tissues and organs and to organ systems.
Jun 20, 2023 · There are 11 major organ systems in the human body. Circulatory system. The circulatory system is a body-wide network of blood, blood vessels, and lymph. Powered by the heart, it is the...
Science. Health and medicine. Unit 1: Introduction to human body systems. About this unit. Get introduced to the major organ systems of the human body! You’ll learn some general anatomy (a roadmap of your body), learn how the arm bone actually connects to the shoulder bone, and how the different organs work together to keep you alive.
Hips, Shoulders, Arms, and Legs: Bones of the Appendicular Skeleton. The bones of the human skeleton are divided into two groups. The axial skeleton includes all the bones (that form bony structures) along the body’s long axis.
