Everything Flashcards
How long is the whole digestive system? Oral to Anus.
Muscular tube of roughly 10 meter
Tell the 6 basic functions of the digestive system?
- Ingestion; food and liquids
- Mechanical digestion; eating in the mouth
- Chemical digestion; chemical breakdown
- Secretion; release water, acids, enzymes
- Absorption; movement electrolytes, molecules and vitamins in interstitial fluid digestive tract
- Defecation; elimination of wastes from the body
Function oral cavity?
-Ingestion
-Crushing food
-Lubricate with mucus and salivatory
-Limited chemical digestion
-Senses and analyzes food for swallowing
Explain next words:
Root
Neck
Crown
Enamel
Cement
Root canal
Dentin
See tooth picture
Name al the tooths
Central incisors
Lateral incisors
Canine
1st premolar
2nd premolar
1st molar
2nd molar
3rd molar (wisdom teeth)
What is the function of the tongue?
-Assist mechanical digestion
-Prepare food for swallowing
-Initiate swallowing proces
-Produces lipase for chemical digestion fats
-Sensory touch temperature and taste
-Speech
What are the three paires of salivatory glands?
-Parotid (mandible-ear)
-Sublingual (under the tongue)
-Submandibular (floor of the mouth)
Functions of the glands?
Moist food
Start chemical digestion
Buffer acid produced bu bacteria
Provide antibodies for immune response
What are the three regions of the throat/pharynx?
Nasopharynx
Oropharynx
Laryngopharynx
What does the upper and lower esophageal do?
UES avoids air entering esophagus
LES avoids gastric contents from entering the oesophagus
Name the way from the mouth till the anus?
Oral cavity
Pharynx
Esophagus (upper and low)
Stomach
Small intestine:
-Duodenum
-Jejunum
-Ileum
Large intestin:
-Cecum
-Colon (ascending, transverse, descending, sigmoid)
-Rectum
Function of the stomach?
-Storage of ingested food
-Mechanical digestion (cementcar)
-Disinfection and chemical digestion
-Production of intrinsic factor (B12)
What happens in the stomach? Which cells helps?
Gastric secretion by:
Parietal cells - break down
Chief cells - active enzyme
Mucous cells - protect the stomach
What is Gastro-oesophageal?
Lower esophageal sphincter (LES) incompetence
What is gastritis?
Inflammation of the stomach
How much segments does the liver have? And why is this important?
8 segments, because every segment has his own artery, vein and bile duct.
What are the liver functions?
Metabolic regulation
Hematologic regulation
Bile regulation
What is metabolic regulation?
Removes metabolic waste
Extracts excess nutrients and toxins
Mobilizes reserves and synthesizes necessary components (KH, fat, proteine)
—>IMPORTANT: Hemostasis of Glucose
What is the function of hematologic regulation?
Productions of plasma proteins:
-Albumin
-Fibrinogen
Remove age/damaged cells from blood
What is the bile? And what is the function?
Alcaline liqiod, mad of;
-Water
-Bile salts
-Bilirubin
-Cholesterol
-Ions
Function:
-Buffering of acids
Where is the alcaline liquid of the bile stored?
Gallbladder
Where does the bile duct drain into?
Into the duodenum
What causes Jaundice?
Increased production of bilirubin
Liver disfunction; infection
Impaired obstruction; gallstones and tumor
What are the symptoms from hepatitis?
Fatique
Fever
Nasua
Juandice
What is Hepatitis A, B and C?
A-Oral route, vaccine, acute not chronic
B-Sexually, blood/needles, vaccine, acute and chronic rare
C-Blood, needles, no vaccine but a medicine. Acute less but chronic high
What is Cirrhosis?
End stage liver disease with destruction of tissue.
Alcohol or obesitas and diabetes. Viral hepatitis.
May require liver transplantation.
What is gallstone disease? And what are the symptoms?
Imbalance of substance in bile leading to stone formation.
Symptoms:
Inflammation of the gallbladder, pancreas. And obstruction/infection of the common ballduct.
What is the location of the:
Spleen
Liver
Spleen LUQ
Liver RUQ
What is the function of the spleen?
Red pulp
Removes aged damage RBC/platelets
Stores platelets 1/3
White pulp
Immune respons to antigens, rich of lymphatic tissue
Treatment splenic trauma?
Transfusion, TXA, hypothermia
What are the symptoms of infectious mononucleosis? And the treatment?
(Ebstein Barr Virus (EBV) spleen)
Fatique, fever, throat, rash, head and body aches and swollen lymph nodes.
Treatment; symptomatic, avoid contact sports
Which two functions has the pancreas? And what do they do?
Exocrine and endocrine
Exocrine; pancreatic juice, chemical digestion, sugars, lipids, proteines, nucleic.
Endocrine; hormone production, control blood sugar level.
Alpha cell- Glucagon
Beta cell- Insuline
What is acute pancreatitus? How do you get it? Symptoms and treatment?
Inflammation of the pancreas resulting in auto digestine of the organ.
Alcohol or gallstones
Abdominal pain, radiating to back, nasua vomiting.
Treatment; aggresive hydration, light diet, proton pump inhibitors
What does the small intestine do? (Small bowel)
90% of chemical digestion and nutrition absorption
What is the function of the duodenum?
C-shaped, absorption of the majority of iron in food.
Mixing bowl from stomach, bile, liver/gallbladder and pancreas juice.
what is the function of the jejunum?
Responsible for the bulk of chemical digestion and nutrient absorption.
What is the function of the ileum?
Absorption of Vitamin B12 as well as bile salts
what is the difference between the Duodenum, Jejunum and the ileum?
Duodenum; absorption of iron (25cm) And juice stomach, liver, gallbladder/liver and pancreas.
Jejunum; nutrient Absorption (2m)
Ileum; Absorption B12 (3m)
What do enzymes of the pancreas do?
Chemical digestion carbohydrates, lipids and proteins.
What does bile production do?
Lipid emulsification, buffering acid, helps digest fat
Sugars, fatty acid and amino acids are absorbed as well as water and electrolytes into the small intestine. True or false?
True
What are the three segments of the large intestine (large bowel)?
Cecum
Colon (ascending, transvers, descending, sigmoid)
Rectum
What is the function of the cecum?
Begins compaction by resorbing water and sodium
Primary function as lymphatic organ
What is appendicitis? And symptoms? Treatment?
Inflammation of the appendix.
Loss apatite, nausea and abdominal pain RLQ. Fever/diarrea.
Treatment; ABX and evacuate (appendicectomy)