What are systems P, Q and R?SolutionP : Respiratory system.Q : Circulatory system.R : Digestive system.State the function of each system mentioned in (a).

The respiratory system, digestive system, urinary system, and integumentary system all interact with the ______ system to maintain homeostasis.Multiple Choicemuscularcirculatoryimmuneskeletal

Which of the following statements about each organ system is correct?Question 3Select one:a.Circulatory system: consists of heart, blood, brain, and blood vesselsb.Muscular system: function is to harvest the nutrients in blood and exchange metabolic wastesc.Central nervous system: requires more than 20% of the energy obtained by nutrients and main fuel source is glucosed.Immune system: proper function of this system does not depend on adequate intake of dietary nutrientse.Endocrine system: made up of various glands (e.g., pituitary, thyroid, testes) that secrete biological molecules called white blood cells into the blood and lymph

ings in oxygen and gets rid of carbon dioxide.What is the respiratory system?Your respiratory system is the organs and structures in your body that allow you to breathe. It includes your lungs,

The respiratory system functions to obtain ______ and remove ______.Multiple choice question.carbon dioxide; oxygennitrogen; carbon dioxideoxygen; carbon dioxidecarbon dioxide; nitrogen

This article is about the biological system. For other uses, see Breathing system.Respiratory systemA complete, schematic view of the human respiratory system with their parts and functions.DetailsIdentifiersLatin systema respiratoriumMeSH D012137TA98 A06.0.00.000TA2 3133FMA 7158Anatomical terminology[edit on Wikidata]The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals, the respiratory surface is internalized as linings of the lungs.[1] Gas exchange in the lungs occurs in millions of small air sacs; in mammals and reptiles, these are called alveoli, and in birds, they are known as atria. These microscopic air sacs have a very rich blood supply, thus bringing the air into close contact with the blood.[2] These air sacs communicate with the external environment via a system of airways, or hollow tubes, of which the largest is the trachea, which branches in the middle of the chest into the two main bronchi. These enter the lungs where they branch into progressively narrower secondary and tertiary bronchi that branch into numerous smaller tubes, the bronchioles. In birds, the bronchioles are termed parabronchi. It is the bronchioles, or parabronchi that generally open into the microscopic alveoli in mammals and atria in birds. Air has to be pumped from the environment into the alveoli or atria by the process of breathing which involves the muscles of respiration.In most fish, and a number of other aquatic animals (both vertebrates and invertebrates), the respiratory system consists of gills, which are either partially or completely external organs, bathed in the watery environment. This water flows over the gills by a variety of active or passive means. Gas exchange takes place in the gills which consist of thin or very flat filaments and lammellae which expose a very large surface area of highly vascularized tissue to the water.Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians, even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants includes anatomical features such as stomata, that are found in various parts of the plant.[3]