A&P 2 L1 Flashcards
What are the 3 largest parts of the large intestine?
Transverse colon, ascending colon & descending colon
Thru evolution, our different systems produces different functions
Compartmentalization
What are the accessory organs of digestion?
Salivary glands, gall bladder, Liver & pancreas
Name the parts of the alimentary canal
Mouth, pharynx, esophagus, stomach, small intestine & large intestine
Name the layers of the canal wall from inner —-> outer
Mucosa, submucosa, muscle layer & serosa
What are the two types of digestion
Extracellular digestion & intracellular digestion
2 types of digestion: food digested before the cells could use them
Extracellular digestion
2 types of digestion: single cell organisms that digest food themselves
Intracellular digestion
What are the 2 types of extracellular digestion
Physical & chemical
2 types of extracellular digestion: chewing with teeth breaking them down & churning
Physical
2 types of extracellular digestion: digestive enzymes, HCL & bile
Chemical
Taking in food
Ingestion
Physical & chemical breakdown of food into a form that the body absorb and use
Digestion
Wave-like motion due to smooth muscle
Peristalsis
What system controls the digestive system
Autonomic system
An increase of peristalsis of the digestive system causes
Diaherra
A decrease in peristalsis of the digestive system causes
Constipation
Anchors the tongue
Frenulum
What is the roof of the mouth called
Hard & soft palate
Uvula is the part of
Soft palate
Spaces between the teeth & lips; teeth & cheeks
Vestibule
The chewing of food
Mastication
What are the parts of the stomach?
Cardiac, fundic, body & pyloric
What are the 2 sphincters in the stomach
Cardiac & pyloric
What are the 2 hormones by the duodenum
Intestinal somatostatin & cholecystokinin
Intestinal somatostatin produced by what cells
Parietal
A circular band of muscle acting as a valve
Sphincter
What stops the contraction of smooth muscle in the stomach
Cholecystokinin
What sphincter regulates chyme into the small intestine
Pyloric
What sphincter regulate passage of food thru the esophagus to the stomach
Cardiac
What controls the sphincters
Peristalsis
What is the entry point for the bolus
Cardiac region
What part of the stomach that temporary stores the food
Fundic region
When bolus passes the cardiac sphincter and in the stomach it’s called
Chyme
Where is the cardiac sphincter located
Between esophagus & stomach
Where is the pyloric sphincter located
Between stomach & small intestine
What are the functions of the liver
Metabolic processes (carbs/proteins/lipids)
- stores fat soluble vitamins A,E,D,K
- stores glycogen, iron, blood
What does the bile store
Bile salts, electrolytes, bile pigments, & cholesterol
What 3 ducts produces the alkaline fluids
Hepatic duct
Where does the bile go after its stored in the gall bladder
Cystic duct
What is the junction of alkaline & bile dumps into the pyloric sphincter
Common bile duct
What emulsify fastest in the bile
Bile salts
Inflammation of the liver is called
Hepatitis
Which accessory organ produces bile
Liver
Where is the gag reflex center (causes vomiting)
Medulla oblongata
What are the main purposes of the stomach
Digestion
What substances are limited absorbed in the stomach
Medication
Electrolytes
Alcohol
Water
What are the little micro channels runs into walls of stomach
Gastric pits
What cause more surface area in the stomach to protect the linings
Rugae
What organ transport bolus through the pharynx to the stomach
Esophagus
What is the normal pH level
2.5-3.0
What are the 4 accessory organs of digestion
Gall bladder, liver, pancreas, & salivary glands
What hormone is produced by the duodenum
Secretin
Secretin targets what organs
Liver & pancreas
What cells in the pancreas produce the digestive enzymes
Acrinar cells
What is the purpose of the alkaline fluid
Neutralizes the stomach acids
What does the pancreas produce
Pancreatic juice
What 2 accessory organ dump fluids in the duodenum
Common bile duct & pancreas
Which accessory organs produce alkaline fluid
Pancreas & hepatic duct
What does malabsorption mean
Not properly absorbing nutrients
What are the 2 capillaries in the villi
Blood capillaries & lymphatic capillaries
Lymphatic capillaries are also called
Lacteals
Lipids cannot go into the_______; but goes into __________ & then transported where
Blood; lacteals; liver
- completion of digestion
- absorbs nutrients
- transport waste to large intestine
Small intestine
Where is the Brunner’s glands located
Small intestine
What does the Brunner’s glands produce
Alkaline mucus
What are the 3 parts of the small intestine
Duodenum, jejunum, & ileum
What 3 systems that controls digestion
Endocrine, ANS & digestive
The innermost mucosa function of the canal wall is & consists of what 2 tissues
Protection; ET/CT
The submucosa of the canal wall consists of what
Nerves
Blood vessels
Lymphatic vessels
Loose CT
The muscle layer of the canal wall consists of what
Smooth muscle
What are the 3 smooth muscles of the muscle layer of the canal wall called
Longitudinal, lateral & circular
What is the function of the serosa membrane of the canal wall
Keeps it moist with serous fluid
Tooth decay also known as
Caries
When you drill through the center of the enamel to kill the pulp cavity to get rid of blood vessels that procedure is called
Root canal
The pulp cavity consists of what
Blood vessels
Gum disease/disorder; gum inflammation are known as
Gingivitis
What does itis mean
Inflammation
How many sets of teeth do we go through a lifetime?
2
Milk teeth/ baby teeth consists of how many teeth
20
Permanent teeth consists of how many teeth
32
What are the 2 sets of teeth called
Primary & secondary
Amylases is an enzyme that breaks down what
Carbs
Lipase is an enzyme that breaks down what
Lipids
Proteases breaks down what
Proteins
What is the epiglottis
An opening from pharynx to esophagus
What is the glottis
An opening from pharynx to larynx
What are the rings that line down the throat made out of
Hyaline cartilage
What are 2 types of salivary gland cells
Mucous & serous
What are the 2 substances secreted by the parietal cells
HCL; intrinsic factor
What is gastrin & what is its function
Hormone; causes gastric glands to increase their secretion
What is an open sore on the surface of an organ called
Ulcer
Where is the vomiting center located
Medulla oblongata
Pancreatic juice is produced by what type of cells
Acinar cells
Where is the secretin produced
Duodenum (sm int)
Inflammation of liver is known as what
Hepatitis
What digestive function do bile salts have
Emulsify salts
What is the name giving of the 2nd part of the large intestine
Transverse colon
What are the 2 sphincters in the anal canal
Internal; external
What is the name of the bacteria found in the large intestine
E. Coli
If a nutrient is not produced by the body or cannot be produced in sufficient amounts, it’s called a
Essential nutrient
50% or more of the dry weight of most living things is
Protein
A starving person would have what type of nitrogen balance
Negative
What is meant by a “positive” energy balance
Caloric intake exceeds caloric output (weight gain)
Where is the ileocecal valve Located
Between small intestine & ascending colon
Name 3 major minerals
Ca, P, K, S, Cl, Na, Mg
Name 3 trace minerals
Fe, Mn, Cu, I, Co, Zn
What are the 2 types of malnutrition
Primary- due to diet; secondary- individual’s characteristic
Can’t absorp nutrients properly
Malabsorption
Vomiting of food
Bulimia
What is calories measured in
Units of heat
Measures the content of food
Bomb calorimeter
Amount of energy (calories) required by the body at REST to sustain life
Basal metabolic rate
Taking in less, using more
Negative nitrogen balance
Taking in more protein
Positive nitrogen balance
Time to relieve the waste (simple complex)
Deification reflex
what 2 sphincters in the anal canal are involuntary then which one becomes voluntary
Internal/external; external
Hemorrhoids are caused by
Pregnancy
Inflammation of the colons is called
Colitis
Where is the cecum located
Behind the ileocal sphincter
Where is the appendix located
Right off the cecum
What is the functions of the large intestine
Stores & eliminates wastes
Limited absorption of water & electrolytes
Absorbs vitamins B & K
What is in the wall of anal, receives pressure from spinal cord—> smooth muscle in colon wall
Baroreceptors “presso”
The 2 parts of the rectum
Anal canal & sigmoid colon
What is in bile
Bile salts, electrolytes, bile pigments, cholesterol
Can’t digest gluten because it coats the small intestine so you can’t absorb nutrients
Celiac disease
Proteins, found in grains
Gluten
Both the pancreas & common bile duct dumps fluids in the
Duodenum