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WorksheetsBio 172 Exam 4 Review
Total questions: 55
Worksheet time: 23mins
What is the innermost layer of the alimentary canal?
Submucosa
Mucosa
Muscularis
Serosa
T/F: The enteric nervous system consists of short reflexes that arise within the GI tract
True
False
This extension of the peritoneum divides liver into left and right lobes and holds it against the anterior abdominal wall
mesocolon
falciform ligament
greater omentum
lesser omentum
These teeth are used to cut food
incisors
molars
bicuspids
canines
T/F: Sympathetic nerves arise from the thoracic and upper lumber regions of the spinal cord and increase the action of ENS neurons
True
False
select all related to saliva
pH 7.0-7.2
starts chemical digestion of carbohydrates, lipids, and protteins
contains lysozyme
contains IgA
This secretes salivary amylase.
stomach
pancreas
brush border
parotid glands
T/F: the final step of chemical digestion occur through enzymatic action, where substances are further broken down and some vitamins are synthesized
true
false
This extension of the peritoneum binds large intestine to posterior body wall
mesocolon
falciform ligament
greater omentum
lesser omentum
Which cell makes HCL and intrinsic factor?
chief
parietal
goblet
gastric
The mechanical and chemical breakdown of food is
nutrition
metabolism
digestion
deamination
T/F: The functional segments of the GI tract include the mouth, tongue, teeth, pharynx, esophagus, stomach, small intestine, and large intestine
true
false
The layer of the alimentary canal that produces voluntary swallowing
mucosa
submucosa
muscularis
serosa
T/F: Involuntary swallowing begins when a bolus enters the laryngopharynx and stimulates tactile receptors
true
false
patients who have problems with food moving through their GI tract have problems with
GERD
metabolism
absorption
peristalsis
If your patient had a cholecystectomy (gallbladder removal), what advice would you need to give them?
Stay upright after eating your meals for at least 60 minutes
Eat a diet lower in fat
Increase the amount of fiber in your diet
Alert your doctor if you experience stomach pain at the lower right quadrant
The medical professions that study the structures, functions, and disorders of the digestive tract for the lower end
Gastroenterology
Nephrology
Proctology
Physiology
Which of the following are components of acini? (pancreatic juice)
trypsinogen
Pancreatic lipase
Bicarbonate ions
Pancreatic amylase
procarboxypeptidase
This is the periodic emptying of chyme into the duodenum.
secretion
absorption
gastric emptying
defecation
Most water absorption occurs in the
small intestine
large intestine
pancreas
liver
T/F: when empty, the folds of the stomach are called rugae
true
false
What converts trypsinogen into trypsin?
enterokinase
gastric lipase
procarboxypeptidase
pancreatic amylase
Which of the following begins digestion of proteins in the stomach?
pepsinogen
pepsin
peptidase
parietal cells
Which of the following are absorbed facilitated diffusion and active transport into blood?
monosaccharides
lipids
amino acids
Which of the following is not one of the 3 metabolic destinations?
used for energy
made into fecal matter
made into structural molecules
made into stored energy for later
Which of the following are basic guidelines for health?
Eat less
Avoid junk food
Get more exercise
Avoid all carbohydrates ever
What is the most vital liver function?
carb metabolism
fat metabolism
lipid metabolism
protein metabolism
Why is it important to get enough protein in your diet?
It is our body's preferred energy source
We can't store amino acids
Our bodies go through it really quickly
It is an important factor in producing bile
T/F: your pancreas synthesizes HDLs and your liver synthesizes LDLs
true
false
T/F: our bodies make enough cholesterol for us and we don't need to consume more in our diet
true
false
What is the most abundant dietary lipid?
phospholipids
steroids
eicosanoids
triglycerides
T/F: linoleic and linolenic acid are essential fatty acids, therefore they don't have to be consumed in the diet because our body synthesizes them for us
true
false
When would we expect to see a positive nitrogen balance?
running a marathon
emotional stress
pregnancy
starvation
growth
Which of the following vitamins are water soluble?
Vitamin C
Vitamin B3 (niacin)
Vitamin K
Vitamin A
Vitamin E
Is glucose oxidized or reduced through metabolic reactions?
oxidized
reduced
Which transport molecule(s) are reduced in the electron transport chain?
FAD
FADH2
NAD
NADH
T/F: glucose is considered "hidden" in cells when it becomes phosphorylated into glucose 6-phosphate
true
false
glucose anabolism involves converting excess glucose into
glycogen
pyruvic acid
ATP
adipose
Which molecules transport fat in the body?
triglycerides
micelles
lacteals
chylomicrons
our good lipoproteins
VLDLS
LDLs
HDLs
cholesterol
Glucose is made into two molecules of pyruvic acid
glycogenolysis
glycolysis
gluconeogenesis
glycogenesis
T/F: pyruvic acid enters the kreb's cycle then the electron transport chain to make ATP
true
false
lipid catabolism involves
lypolysis
lipolysis
lypogenesis
production of ketone bodies
urea is made from which of the following?
ammonia (NH3)
ammonium (NH4)
CO2
O2
this hormone assists with the long term regulation of food intake
ghrelin
CCK
insulin
leptin
T/F: in the postabsorptive state, anabolism exceeds catabolism
true
false
Which of the following is not a function of lipids?
Phospholipids of plasma membranes
Myelin sheaths to speed up nerve conduction
Lipoproteins that transport cholesterol
backbone of antibodies
Cholesterol used to synthesize bile salts and steroid hormones
T/F: an increase in visceral fat puts one at a significantly higher risk for heart disease and is a component of metabolic syndrome
true
false
A BMI of 28 would classify one as
underweight
normal weight
overweight
obese
Which of the following is not a risk factor as a result of excess fat?
T2DM
dyslipidemias
metabolic syndrome
Cancer
hypotension
T/F: if labs show lowered liver enzymes, one's NAFLD is improving and successfully reversing
true
false
Which of the following criteria define metabolic syndrome?
waist circumferene: >40 inches in women
elevated blood pressure: 120/80
elevated triglycerides ≥150mg/dl
increased HDL levels: >50 mg/dl in women
Elevated fasting glucose level: ≥100 mg per dl
when ghrelin is secreted, what happens?
your appetite is stimulated
your brain tells you that you're satiated
your gallbladder begins to contract
your brain receives signals about the amount of adipose tissue energy reserves
Type of cancer that is nearly always fatal and is the fourth most common cause of cancer death in the United States
breast cancer
colon cancer
pancreatic cancer
prostate cancer
Which of the following is not a result of having too much excess fat on the body?
striae
Deepening pigmentation (acanthosis nigricans) in the folds of the neck
osteoarthritis
subdural hematoma
