Explain The Main Components Of The Digestive System

It is divided into four sections, three of which are under the ‘external respiration’. These are breathing, gaseous exchange and blood transport. The respiratory system is the internal of tissue respiration carried out inside the body cells.

The respiratory system consists of the nose, mouth, pharynx, larynx, trachea, bronchi and lungs. These provide a passageway to allow air in and out of the body. Every cell in the body requires oxygen to survive.

The respiratory system is made up of organs and tissues that help you breathe. The main parts of this system are the lungs, the trachea, the diaphragm, alveoli and nasal cavity. The respiratory system starts with the mouth and the nose, where air is brought in, then passes through the larynx and the trachea into the chest cavity. http://www.nhlbi.nih.gov/health/ health-topics/topics/hlw/system The main organs of the respiratory system are lungs, which carry out this exchange of gases as we breathe. The

D ) (1) diffused across the synaptic cleft to a receptor protein (2) neurotransmitter released (3) binding of the transmitter opens pores in the ion channels and positive ions move in.

The Respiratory system is an integrated system of organs involved in the intake and exchange of oxygen and carbon dioxide between an organism and the environment. Your Respiratory system is made up of the organs in your body that help you breathe. The Respiratory system is the system of the body that deals with breathing. The trachea is a wind pipe. The trachea is a pipe shaped by rings of cartillage. A Bronchi are two tubes that carry air into the lungs. The Respiratory system consistes of many different organs. The organs are the lungs, trachea, bronchi, alveoli, diaphragm, nose, mouth, and pharynx. In the Respiratory system the right lung is larger and has more lobes that the left lung becuase the heart is normally located on the left side, and takes up space where the lung would had been. The functions of the Respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The Respiratory system is also used for the of exchange gases. The importance of the Respiratory system is that it allows for the exchange of gases; meaning carbon dioxide and oxygen. These gas exchanges occur in the alveoli's and the capillaries. This gas exchange of gases is the Respiratory system's means of getting oxygen to the blood. The goal of breathing is to

The circulatory and immune systems are two very closely related systems. The circulatory is composed out of blood vessels, the heart, and blood. The immune system is made up of white blood cells and various lymph nodes. Basically, most of the immune system is found inside the blood of the circulatory system. The circulatory system provides the body with blood. It gives the kidneys of the digestive system something to filter and picks up nutrients from the small intestines. It also picks up air from the lungs of the respiratory system and provides the brain of the nervous system with blood, along with the rests of the body. Protection from wounds in the integumentary system is also provided by the circulatory system which has platelets that aid in blood clotting and forming scabs. The immune system protects all the other systems from disease and helps them from being attacked by viruses and bacteria. It also aids the ears of the nervous system with some very protective earwax. The circulatory system provides us with life fluid while the immune system protects that fluid and the rest of our body.

The endocrine system is slower than the nervous system because hormones must travel through the circulatory system to reach their target.

The receptor monitors the internal conditions, it can sense a change within the cells. The integrator is basically the command center and sends out signals. The effector carries out the signals from the command center to different

The nervous system reacts quickly to stimuli by sending electrical action potential to stimuli by the nervous system is near instantaneous but the effects are normally short lived. An example is the the recoil mechanism of an arm when touching something hot (Boundless, 2016). The endocrine system depends on hormones to obtain responses from target calls. These hormones are produced in specialized glands at a distance from the target, hormones can influence cellular responses at a protein or genetic level. This process takes quite a while longer then that of the nervous system. Endocrine hormones must first be synthesized, then transported to their target cells and either enters or signals the cell. Since these hormones act much slower their effects are usually longer lasting . An example is the growth hormone that is secreted by pituitary gland. The pituitary gland is responsible growth during

The digestive system is an organ system which consists of a group of organs working together to convert food into energy and nutrients which helps to maintain the body. The organs that make up the digestive system include the pancreas and salivary glands, small intestine, liver, stomach and large intestines. The function of the digestive system is to digest and absorb. Digestion is the breakdown of food into smaller molecules which are them later absorbed in the body. The digestive system is divided into two major parts: the digestive tract and the accessory organs.

Reception is the target cell's detection of the signal via binding of a signaling molecule, or ligand. Ligand is a complex biomolecule, usually a protein. Receptor proteins span the cell’s plasma membrane and provide specific sites for water-soluble signaling molecules to bind to Receptors are found in two places; Intracellular proteins are found inside the plasma membrane in the cytoplasm or nucleus.Cell-surface proteins are embedded in the plasma membrane These transmembrane receptors are able to transmit information from outside the cell to the inside because they can transform, when a specific ligand binds to it.

E) involves mating factors attaching to target cells and causing production of new paracrine cells.

The digestive system is very important in digesting food and breaking it down so it can be digested easily. The digestive system turns food into energy. Throughout the process there are nutrients which are absorbed. There are many things that contributed to the digestive system such as the mouth which produces saliva which helps to break down food and nutrients such as carbohydrates with the help of an enzyme called amylase. The major food groups which are called macro nutrients include carbohydrates, proteins and fats. All of these nutrients play an important role in the body. There are also many micro-nutrients which include vitamins and minerals which provide the body with health and well-being. The digestive system is made up of the mouth, which includes the teeth (the teeth are used to cut and grind food into smaller pieces, they contain blood vessels and nerves), tongue (the tongue is a muscle that has a rough surface including the taste buds), salvia glands (they produce salvia which moistens the food to make is easier to digest), the pharynx (this helps the food travel to the stomach, the pharynx also plays an important role in the respiratory system. It also contains 2 different flaps to separate the 2 functions), esophagus (this connects the pharynx to the stomach and transports chewed food to the stomach), stomach (this is a muscle that is

To discuss the regions of the digestive system, it seems more reasonable to start superiorly and work my way down. The digestive system as a whole can be broken down into two regions called the alimentary tract, and accessory organs (SEER, .n.d.) The Alimentary tract consists of the: mouth, pharynx, esophagus, stomach, small intestines, and large intestines. The accessory organs are there to aid the digestive system and are the: salivary glands, liver, gallbladder, and pancreas.

Just like we use signals throughout our daily lives to help and direct us, our cells use them too. Signaling is a crucial form of communication utilized by our cells to send messages back and forth. Without it, we would not be alive. The signals originate from either the environment or from our cells themselves. There are various types of signaling throughout our body to correspond to the area in our bodies where the signal is occurring. Signaling involves three components: a cell that sends the signal called the sending molecule, the signaling molecule itself called a ligand, and the cell that receives the ligand called the receptor molecule. The distance of how far the signal is sent is also categorized into local or long-distance signaling.