Main body systems

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.

Skin, Hair, Nails, Sweat and Oil Glands The largest organ of the body, the skin is part of the integumentary system that also includes oil and sweat glands, nails and hair. This fluid is then returned to the blood system.

In the auditory apparatus some nerve cells and fibres are lost, and the ability to hear high notes diminishes. A brief introduction to all the systems of human body is given in the table below. Nervous System This system coordinates the activities of the body and responses to the environment.

An open loop system. Muscle Tissues[ edit ] Muscle tissue is composed of cells that contract and move the body. For each one the structure of the organs involved will be described and the way they function will be explained.

The Effects of Smoking on the Body

Working together, these systems maintain internal stability and balance, otherwise known as homeostasis. It is made up of the trachea, bronchi, bronchioles, lungs, diaphragm, ribs and muscles that move the ribs in breathing.

Molecules pass across it by diffusion, osmosis and active transport. It is found in the wall of the bladder see diagram 4. It is concerned with breaking down the large molecules in foods into smaller ones that can be absorbed into the blood and lymph. Intellectual declines in the elderly are the consequence of underlying disease conditions, such as Alzheimer disease or cerebrovascular disease.

These are the right and left body cavities. The reproductive system creates new human life. High altitudes demand a degree of cold adaptationas well as adaptation for low air pressure and the consequent low oxygen.

A Kid's Guide to Life Sciences: The Human Body Systems

Mammals but not other vertebrates have a sheet of muscle called the diaphragm that divides the trunk into the chest region or thorax and the abdomen. Each fibre contracts automatically but the heart beat as a whole is controlled by the pacemaker and the involuntary autonomic nervous system.

Compression of the spinal column can lead to a loss of height. For instance, vertebrates that live on the land have developed a flexible neck that is absent in fish where it would be in the way of the gills and interfere with streamlining.

Particularly important are cellular proteins called enzymeswhich catalyze the chemical reactions necessary for life. The body wall forms the cylinder. Excretion Nutrition Living organisms are made from cells which are organised into tissues and these are themselves combined to form organs and systems.

Digestive System This is also known as the gastrointestinal system, alimentary system or gut. There are several different types of epithelium, distinguished by the different shapes of the cells and whether they consist of only a single layer of cells or several layers of cells.

Main Body Systems Main 12 Human Body Organ Systems Stock Vector 1012654342

Ovaries, uterine tubes, uterus, vagina, mammary glands Production of sperm; transfer of sperm to female Production of eggs; provision of a nutritive environment for the developing embryo and fetus Respiratory Nose, pharynx, esophagus, stomach, intestines, salivary glands, pancreas, liver, gallbladder Exchange of carbon dioxide and oxygen; regulation of hydrogen-ion concentration Urinary Regulation of plasma composition through controlled excretion of organic wastes, salts, and water.

See Chapter 6 for more details of bone. The body's chemical buffer system consists of three individual buffers out of which the carbonic acid bicarbonate buffer is the most important. If the value is less than the set point, then signals go mainly to the heat gain mechanisms; if it is greater than the set point, then they go mainly to the heat loss mechanisms.

The excretory system includes the bladder, the kidneys, the ureters and the urethra. This lesson will allow students to explore the human body and give a better understanding of the human body, systems and organs.

Objectives. Student will Identify the main functions of the systems of the human organism, including the circulatory, respiratory, skeletal, muscular, digestive, excretory, reproductive, integumentary, nervous, and endocrine systems. Different body systems consist of collections of cells, tissues, and organs with a common purpose.

The nervous system is the body’s main control system. It consists of the brain, the spinal cord, and a network of nerves that extend out to the rest of the body.

LYMPHATIC SYSTEM. Systems work alone and with other systems to allow your body to maintain homeostasis. Homeostasis is a stable internal environment that allows you (and your cells) to survive. While every one of your systems is needed to survive, your nervous system is the.

Helpful, trusted answers from doctors: Dr. Singh on body systems affected by stroke: A stroke affects your brain and the nervous system. YOur nervous system controls a lot, from breathing, to heart rate, but mainly a stroke reveals itself through a muscle or sensation defect.

List of systems of the human body

The human body is everything that makes up, well, you. The basic parts of the human body are the head, neck, torso, arms and legs. Our bodies consist of a number of biological systems that carry.

Anatomy and Physiology of Animals/Body Organisation

The systems of the body includes the circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory.

The main parts of the circulatory system are the heart, blood, and blood vessels. The heart beats three billion times in an average life span and its primary goal is keeping the blood flowing through the body.

Main Human Body Systems & Their Connections Main body systems
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Four Systems of the Body in 3-D