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Hope this helps:
The digestive system includes the digestive tract and its accessory organs, which process food into molecules that can be absorbed and utilized by the cells of the body. Food is broken down, bit by bit, until the molecules are small enough to be absorbed and the waste products are eliminated. The digestive tract, also called the alimentary canal or gastrointestinal (GI) tract, consists of a long continuous tube that extends from the mouth to the anus. It includes the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The tongue and teeth are accessory structures located in the mouth. The salivary glands, liver, gallbladder, and pancreas are major accessory organs that have a role in digestion. These organs secrete fluids into the digestive tract.
Food undergoes three types of processes in the body: * Digestion * Absorption * Elimination
Digestion and absorption occur in the digestive tract. After the nutrients are absorbed, they are available to all cells in the body and are utilized by the body cells in metabolism. The digestive system prepares nutrients for utilization by body cells through six activities, or functions. Ingestion
The first activity of the digestive system is to take in food through the mouth. This process, called ingestion, has to take place before anything else can happen. Mechanical Digestion
The large pieces of food that are ingested have to be broken into smaller particles that can be acted upon by various enzymes. This is mechanical digestion, which begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach. Chemical Digestion
The complex molecules of carbohydrates, proteins, and fats are transformed by chemical digestion into smaller molecules that can be absorbed and utilized by the cells. Chemical digestion, through a process called hydrolysis, uses water and digestive enzymes to break down the complex molecules. Digestive enzymes speed up the hydrolysis process, which is otherwise very slow.
Movements
After ingestion and mastication, the food particles move from the mouth into the pharynx, then into the esophagus. This movement is deglutition, or swallowing. Mixing movements occur in the stomach as a result of smooth muscle contraction. These repetitive contractions usually occur in small segments of the digestive tract and mix the food particles with enzymes and other fluids. The movements that propel the food particles through the digestive tract are called peristalsis. These are rhythmic waves of contractions that move the food particles through the various regions in which mechanical and chemical digestion takes place. Absorption
The simple molecules that result from chemical digestion pass through cell membranes of the lining in the small intestine into the blood or lymph capillaries. This process is called absorption. Elimination
The food molecules that cannot be digested or absorbed need to be eliminated from the body. The removal of indigestible wastes through the anus, in the form of feces, is defecation or elimination.
What else can I help you with?
What is a list of the functions of the digestion system?
your butt :)
What system carries out the organic functions of ingestion digestion and excretion?
The digestive system carries out the organic functions of ingestion, digestion, and excretion. It breaks down food into nutrients for absorption and eliminates waste materials from the body through the processes of digestion and excretion.
What does visceral functions mean in autonomic nervous system?
visceral functions such as: Heart rate Blood pressure Digestion Urination
Is the bile a digestive system?
Bile, produced by the liver aids in the digestion of lipids. Lipids are triglycerides that have various functions in the body, including digestion.
Heartbeat digestion and other self regulating bodily functions are governed by the?
autonomic nervous system.
Which area of the brain controls the heartbeat digestion and breathing?
The brainstem, specifically the medulla oblongata, controls functions like heartbeat, digestion, and breathing. It regulates these essential bodily functions through the autonomic nervous system.
What are two functions performed by the digestion system?
the break down of food into little pieces and then the digestion of them
What are some examples of body functions controlled by the autonomic nervous system?
Breathing, beating of the heart, digestion.
Functions of the musclar system?
The muscular system has a variety of roles in the human body. The system provides the body with stability, posture, motion, heat, and helps with digestion.
Digestion respiration and other involuntary functions are under the control of the?
Digestion, respiration, and other involuntary functions are primarily controlled by the autonomic nervous system. This system regulates processes that occur automatically, such as heart rate, breathing, and digestion, without our conscious effort. The autonomic nervous system consists of two main branches: the sympathetic and parasympathetic nervous systems, which work together to maintain the body's internal balance.
If a person had a diseased autonomic nervous system the kinds of functions most directly affected would be things such as?
Heart rate, blood pressure regulation, digestion, temperature regulation, and bladder control would be most directly affected by a diseased autonomic nervous system. The autonomic nervous system controls these involuntary bodily functions.
Which system manages all the functions of the other systems?
The nervous system manages all the functions of the other systems in the body. It coordinates and regulates activities such as breathing, digestion, sensory perception, and movement through its network of nerves and cells.
