The digestive system Flashcards
All foods must go through physical and chemical changes - to change the insoluble complex food into simpler ones this process is known as what
What is digestion?
This process breaks down food and takes out nutrients and disposes of waste; it breaks down food into molecules, small enough to be transported through the plasma membrane.
What is digestion?
The digestive system prepares food for use by cells, through these five basic activities? IPDAE
- ingestion, 2. peristalsis, 3. digestion 4. absorption and 5. Elimination
Taking a food into the body is known as this
What is ingestion?
Involuntary physical movement of food through the body is known as this
What is peristalsis?
The breakdown of food by both mechanical and physical, and chemical means, is known as this
What is digestion?
The passage of digested food from the digestive tract into the cardiovascular and lymphatic systems for distribution to the cells of the body, is known as this
What is absorption?
The defecation from those substances that are ingestible, and cannot be absorbed
What is elimination?
The names of these two types of digestion are this
What is 1. mechanical digestion, a.k.a. physical digestion and 2. chemical digestion?
This type of digestion happens via peristalsis and mastication (aka chewing)
What is mechanical digestion, a.k.a. physical digestion?
This type of digestion is accomplished by enzymes, enzymes that are produced by cells along the tract and break down food chemically via different organs and secrete different enzymes to chemically act on different foods
What is chemical digestion?
The organs of the digestive system are divided into these two groups
What are 1. Gastrointestinal tract, a.k.a. alimentary canal a.k.a. alimentary tract and 2 accessory organs
This tract is a long, continuous tube, running through the ventral body cavity, and extends from the mouth to the anus, contains food from the time is ingested to the time it’s eliminated and includes most of the digestive organs. MPESSL
What is the gastrointestinal tract a.k.a. alimentary canal a.k.a. alimentary tract
Name the six organs within the gastrointestinal tract MPESSL
- Mouth, 2. pharynx, 3. esophagus 4. stomach, 5. small intestines, 6. large intestines
The mucosa, submucosa, muscularis, and serosa, are the four layers within this structure
What is the layers of the gastrointestinal tract?
These are organs that lie outside of the gastrointestinal tract, but are still used for digestion
What are accessory organs?
Name the six accessory organs for digestion. TTSLGP
- Teeth, 2 Tongue 3.salivary glands, 4. liver, 5. gallbladder, 6. pancreas
This accessory organ is formed by the cheeks, hard and soft palate and tongue; the cheeks formed the lateral wall…
What is the mouth a.k.a. oral cavity a.k.a. buccal cavity
This is a space, bound, externally by the cheeks and the lip and internally by the gums, and the teeth of the mouth/oral cavity / buccal cavity
What is the vestibule of the mouth?
This is a space that extends from the gums and the teeth to the fauces of the mouth
What is the oral cavity proper?
This is the opening between the mouth and the throat
What are fauces?
These are found in the alveolar socket of the Alveolar process of the maxillary and in the alveolar sockets of the alveolar process of the mandible
What are teeth, a.k.a. dentes teeth a.k.a. dentes
These teeth are known as our first set of teeth and there are 20 of these 10 in each jaw
What are our milk teeth A.k.a. Deciduous teeth
The second set of these we get later in life, 16 in each jaw
What are our permanent teeth?