- Name two organs of each of the following systems.
1. Digestive System
2. Respiratory System
3. Circulatory System
4. Nervous System
5. Excretory System
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Answers
Answer:
1.Large Intestine,Rectum.
2.Trachea,Lungs.
3.Heart.
4.Brain,Spinal Cord.
5.Kidney,Urethra.
Explanation:
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Answer:
Study Guide to the Systems of the Body
Have you ever wondered how your food is digested, or how you can breathe, or even move your arms? If you think about it, it's pretty amazing that the human body can do all of these things and more. These actions are made possible by what is called organ systems which are collections of organs, body parts, and tissues that work together for a common goal.
Circulatory System
The circulatory system consists of the heart and blood vessels which encompass all of the arteries, veins, and capillaries. The arteries carry oxygenated blood away from the heart, and veins return deoxygenated blood back to the heart. The main purpose of the circulatory system is to transport blood, oxygen, nutrients, and hormones to and from different cells and tissues throughout the body
Respiratory System
The respiratory system primarily consists of the trachea, bronchi, bronchioles, alveoli, lungs, and diaphragm. Its primary functions are to absorb oxygen through the inhalation (inspiration) of air and to expel carbon dioxide back out into the atmosphere through exhalation (expiration). This process is commonly called ventilation, otherwise known as breathing, which facilitates the exchange of oxygen and carbon dioxide between the lungs and atmosphere. Within the lungs, oxygen and carbon dioxide are exchanged via the alveoli, which are tiny air sacs where this action takes place. ७
Skeletal System
The skeletal system consists of 206 bones in total and consists of several different types of bones such as long, short, flat, irregular, and sesamoid. It also consists of all the joints, cartilage, tendons, and ligaments within the body. The primary functions of the skeletal system are locomotion, support of the body, and the protection of internal organs such as the brain, heart, and lungs. Bones are also responsible for the production of red blood cells, platelets, and most white blood cells. Minerals such as calcium, iron, magnesium, and phosphorus are also stored within the bones, with 99% of the body’s calcium being stored here.
Muscular System
The muscular system consists of 650 skeletal, smooth (visceral), and cardiac (myocardium) muscles. The primary functions of this system are movement, joint stabilization, heat generation, maintenance of posture, and the facilitation of blood circulation. Skeletal muscles connect to the bone and work hand-in-hand with the skeletal system to control voluntary movement such as walking and running.
The Digestive System
The digestive system consists mainly of the gastrointestinal (digestive) tract which includes the mouth, esophagus, stomach, small intestine, and large intestine (colon). The liver, gallbladder, and pancreas are also a part of this system and are responsible for contributing to the chemical breakdown of ingested food. The main functions of the digestive system are digestion, absorption, and the elimination of waste. Digestion is the breakdown of foods by mechanical and enzymatic processes into substances that can be utilized by the body.