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- Skeletal system. The skeletal system is composed of bones and cartilages. There are two parts of the skeleton; axial and appendicular. The axial skeleton consists of the bones of the head and trunk.
- Muscular system. The muscular system consists of all the body muscles. There are three muscle types; smooth, cardiac and skeletal muscles. Smooth muscle is found within walls of blood vessels and hollow organs such as the stomach or intestines.
- Cardiovascular system. The cardiovascular system is comprised of the heart and the circulatory system of blood vessels. The heart is composed of four chambers; two atria and two ventricles.
- Respiratory system. The respiratory system consists of a series of organs; the nasal cavity, pharynx, larynx, trachea, bronchi, bronchioles and lungs (alveoli).
- Circulatory System
- Lymphatic System
- Respiratory System
- Integumentary System
- Endocrine System
- Digestive System
- Urinary (Excretory) System
- Musculoskeletal System
- Nervous System
- Reproductive System
The circulatory systemtransports oxygen and nutrients to all corners of the body. It also carries away carbon dioxide and other waste products. When people talk about this organ system, they’re usually talking about the cardiovascular system at large, which includes the: 1. Heart 2. Blood vessels (arteries and veins) 3. The blood itself In order fo...
The lymphatic systemis the drainage system of the body. It plays an important role in your immunity, blood pressure regulation, digestion, and other functions. This organ system carries excess fluid, proteins, fats, bacteria, and other substances away from the cells and spaces between cells. It does this using: 1. Lymph vessels 2. Lymph nodes 3. Ly...
The respiratory system is responsible for breathing, which is the controlled movement of air in and out of the body (ventilation). It also moves oxygen and carbon dioxide into and out of the bloodstream (respiration). This organ system contains the following: 1. Lungs 2. Trachea(windpipe) 3. Airways of the respiratory tree One of the least understo...
The integumentary systemis unique because it is the largest and only single-organ system in the body. It protects the body from the external environment and helps regulate body temperature. The integumentary system is the skin and all the structures in it, including the: 1. Sweat glands 2. Hair follicles 3. Nails 4. Nerves
The endocrine systemmostly regulates metabolism and uses the products of digestion. Along with the nervous system and immune system, it’s generally considered one of the most complicated systems in the body. This organ system includes all the glands that secrete hormones into the bloodstream, including: 1. Adrenal 2. Gonads (ovaries and testicles) ...
The gastrointestinal (GI) systemis sometimes referred to as the gut or the digestive system. It is responsible for breaking down foods into nutrients, which the body needs for energy, growth, and cell repair. This system includes all the organs that carry food from where it enters the body to where it exits, including the following: 1. Mouth 2. Eso...
The urinary system includes: 1. Kidneys 2. Ureters 3. Bladder 4. Urethra These organs work together to filter blood and remove toxins and waste from body tissues. The removal of excess fluid through this organ system also helps regulate blood pressure.
The musculoskeletal system provides the framework and the engine for our movement, posture, and physical abilities. This organ system includes: 1. The skeleton 2. All the muscles, tendons, and ligaments attached to the skeleton
The nervous systemis a network that makes it possible for different parts of the body to communicate with one another. Think of it as your body’s command station. All body processes, reactions, thoughts, and movements stem from this organ system. The nervous system is incredibly detailed and includes the following: 1. Brain 2. Spinal cord 3. All th...
This is the only organ system that is not complete in any one body and requires another person (or medical intervention) to complete its mission, which is to produce offspring. There are two parts of male reproductive system: 1. Penis 2. Testicles Three parts comprise the female reproductive system: 1. Vagina 2. Uterus 3. Ovaries Aside from their d...
cardiovascular system. endocrine system. (missing exocrine system) muscular system. Clockwise from top left: lymphatic system. respiratory system. urinary system. female reproductive system. male reproductive system.
Apr 5, 2024 · It consists of the heart, blood, blood vessels, arteries and veins. According to the Cleveland Clinic, the adult human body's network of blood vessels is more than 60,000 miles (around 100,000 ...
5 days ago · 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. For detailed discussions of specific tissues, organs, and systems, see human blood; cardiovascular system; human ...
- The Editors of Encyclopaedia Britannica
- Chemically, the human body consists mainly of water and organic compounds—i.e., lipids, proteins, carbohydrates, and nucleic acids. The human body...
- The four main types of tissue in the human body are epithelial, muscle, nerve, and connective.
- The nine major organ systems in the human body are the integumentary system, the musculoskeletal system, the respiratory system, the circulatory sy...
The peripheral nervous system has two parts. The autonomic nervous system controls the involuntary functions of the heart, smooth muscle, and many glands in the body. The somatic nervous system sends signals from the central nervous system to the skeletal muscles to mediate voluntary movement.
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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 body’s ...
