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A&P II Quiz 3

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Quiz on A&P II Quiz 3 , created by Julie Joyce on 31/03/2018.
Julie Joyce
Quiz by Julie Joyce, updated more than 1 year ago
Julie Joyce
Created by Julie Joyce about 6 years ago
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Resource summary

Question 1

Question
This structure prevents food from entering the airway
Answer
  • vestibular folds
  • uvula
  • laryngopharynx
  • epiglottis

Question 2

Question
Surfactant decreases the _________________ in the alveoli
Answer
  • surface tension
  • pressure
  • compliance
  • volume

Question 3

Question
The amount of air that can be forcefully inhaled after a normal tidal volume inspiration is termed the __________________.
Answer
  • vital capacity
  • expiratory reserve volum
  • inspiratory reserve volume
  • inspiratory capacity

Question 4

Question
Which of the following statements is FALSE in regard to inspiration?
Answer
  • the rib cage is elevated
  • the diaphragm is relaxed
  • volume in the thoracic cavity has increased
  • intrapulmonary pressure has decreased

Question 5

Question
Which of the following is responsible for keeping the lungs from collapsing?
Answer
  • surfactant
  • intrapulmonary pressure
  • transpulmonary pressure
  • intrapleural pressure

Question 6

Question
The chloride shift refers to _______________________.
Answer
  • chloride ions binding to hemoglobin
  • chloride ions moving into our out of the red blood cells
  • chloride ions combining with bicarbonate ions
  • chloride ions being released from hemoglobin

Question 7

Question
When holding our breath for a long time we get the urge to breathe because of __________.
Answer
  • a decrease in N2
  • a decrease in 02
  • a increase in C02
  • an increase in PH

Question 8

Question
The majority of carbon dioxide is transported _____________
Answer
  • bound to hemoglobin
  • dissolved in the plasma
  • as bicarbonate ions
  • as carbonic acid

Question 9

Question
which is not one of the 3 main factors that influence external respiration
Answer
  • partial pressure gradients
  • ventilation perfusion coupling
  • temperature of the respiratory membrane
  • gas solubilities

Question 10

Question
Bacteria or other particulate debris contained within inspired air are removed or destroyed by __________.
Answer
  • mucus
  • vibrissae
  • conchae
  • all of the above

Question 11

Question
People who have their adenoids removed to cut down on snoring are having their _________removed
Answer
  • nasal septum
  • choanae
  • conchae
  • pharyngeal tonsils

Question 12

Question
Loss of lung elasticity and destruction of alveolar walls is termed:
Answer
  • asthma
  • emphysema
  • chronic bronchitis
  • dyspnea

Question 13

Question
___________________ is the most potent chemical influencing respiration.
Answer
  • oxygen
  • nitrogen
  • water
  • carbon dioxide

Question 14

Question
_______________ is produced by the ___________ in response to low blood oxygen levels
Answer
  • growth hormone; pituitary gland
  • hematopoietin; bone marrow
  • erthropoeietin; kidneys
  • hematopoietin; lungs

Question 15

Question
Why is it possible to deliver more oxygen to vigorously working cells without increasing respiration rate or cardiac output?
Answer
  • it isn't a small decrese in p02 has very little effect on hemoglobin uploading
  • Because once one molecule of oxygen is bound to hemoglobin, the other molecules bind much more rapidly.
  • Because between a pO2 of zero and a pO2 of 40, hemoglobin saturation changes very rapidly and a greater degree of uploading will occur with even small changes in pO2.
  • Because carbon dioxide released from the vigorously working cells enhances oxygen binding to hemoglobin

Question 16

Question
Why is the rate of CO2 exchange roughly equivalent to that of O2 despite its less steep pressure gradient
Answer
  • CO2 diffuses much more rapidly out of the cells.
  • CO2 binds to O2 and moves across the respiratory membrane simultaneously.
  • CO2 is more soluble in water than is O2
  • CO2 is actively transported into the alveoli.

Question 17

Question
During an asthma attack, bronchioles become severely ______________. Taking epinephrine cause them to _____________.
Answer
  • constricted; dilated
  • dilated; constrict
  • mucus-filled; empty of mucus
  • both a and c

Question 18

Question
The majority of absorption occurs in the _____________.
Answer
  • stomach
  • small intestine
  • large intestine
  • mouth

Question 19

Question
The majority of _______________ occurs in the mouth, stomach and small intestine.
Answer
  • ingestion
  • chemical digestion
  • mechanical digestion
  • absorption

Question 20

Question
In terms of gastrointestinal function, the large intestine’s greatest contribution is:
Answer
  • exposing the chyme to the rich assortment of pancreas
  • Absorption of all primary nutrients
  • absorption of water.
  • Regulation of gastric motility.

Question 21

Question
Cirrhosis of the liver would most severely impact digestion of _____________.
Answer
  • carbohydrates
  • amino acids
  • proteins
  • lipids

Question 22

Question
_____________ stimulates the gallbladder to contract
Answer
  • secretin
  • CCK
  • gastrin
  • fatty chyme

Question 23

Question
Why is the small intestine well adapted for nutrient absorption?
Answer
  • acid secretions from the stomach are neutralized in the duodenum
  • cck is released from the duodenum to promote liver and pancreatic secretion
  • large surface area due to the presence of plicae circulares, villi and microvilli
  • the small intestine is very long and thin

Question 24

Question
Which is true of intestinal juice?
Answer
  • 2-4 liters are produced daily
  • pH range is 7.4 to 7.8
  • it is hypotonic to blood plasma
  • it is composed mostly of bicarbonate ions

Question 25

Question
The __________________ cells are responsible for HCl production
Answer
  • goblet
  • mucous
  • parietal
  • chief

Question 26

Question
Meals high in protein ___________________ gastrin secretion from the gastric glands.
Answer
  • increase
  • decrease
  • have no effect upon
  • delay

Question 27

Question
When your stomach growls in response to an ad on TV for food, the ___________ phase of gastric secretion is initiated
Answer
  • cephalic
  • gastric
  • intestinal
  • gastrin

Question 28

Question
Which of the following types of epithelial tissues is most predominant throughout the digestive tract?
Answer
  • simple squamous
  • stratified squamous
  • simple columnar
  • simple cuboidal

Question 29

Question
Digestion of which of the following might be inhibited if a patient chronically consumes an antacid?
Answer
  • lipid
  • carbohydrate
  • sugar
  • protein

Question 30

Question
A patient with a low RBC count receives vitamin b12 injections every two weeks. Why?
Answer
  • this patient is training for a triathalon
  • this patient is anemic and has low iron
  • parietal cells in this patient's stomach have ceased producing intrinsic factor
  • this patient's parietal cells have stopped secreting hcl

Question 31

Question
Choose the answer that lists the four layers of the wall of the alimentary canal in the appropriate order from innermost to outermost
Answer
  • mucosa, submucosa, musularitis externa, serosa
  • submucosa, mucosa, serosa, muscularis externa
  • serosa mucosa muscularis externa, submucosa
  • muscularis externa, submucosa serosa mucosa

Question 32

Question
amylase allows us to digest
Answer
  • carbohydrates
  • proteins
  • fats
  • all of the above

Question 33

Question
Which of the following is NOT an enzyme produced by the pancreas?
Answer
  • amylase
  • lipase
  • nuclease
  • glucogonase

Question 34

Question
The gastric cells that secrete pepsinogen are the _________________.
Answer
  • mucous neck cells
  • parietal cells
  • chief cells
  • enteroendocrine cells

Question 35

Question
What is a good source of unsaturated fats?
Answer
  • nuts
  • meats
  • margarine
  • dairy

Question 36

Question
It is possible for vegetarians to obtain complete proteins by combining ___________ and __________________.
Answer
  • bread; vitamins
  • fats; pasta
  • legumes; cereal grains
  • milk; sugar

Question 37

Question
The major metabolic function for most vitamins is that they assist enzymes by serving as _____________.
Answer
  • Sources of ATP
  • active sites
  • substrates
  • coenzymes

Question 38

Question
The basal metabolic rate can most effectively be defined as the _____________.
Answer
  • lowest point of energy used by the body
  • amount of energy needed to maintain life
  • maximal energy used by the body
  • energy required to digest a meal

Question 39

Question
Which of the following structure is responsible for feeding behavior?
Answer
  • pituitary
  • medulla
  • pons
  • hypothalamus

Question 40

Question
What is the primary objective during the post absorptive state?
Answer
  • To collect and remove glucose from the blood and deposit it in cells
  • to convert fat to protein
  • to maintain blood glucose at around 70-110 mg/100 ml blood
  • to elevate blood glucose to the highest possible level to ensure adequate delivery to the brain

Question 41

Question
A negative nitrogen balance would be present in which situation?
Answer
  • pregnancy
  • growth
  • starvation
  • all of the above

Question 42

Question
the nutrient used almost exclusively for ATP production is
Answer
  • amino acids
  • fatty acids
  • fructose
  • glucose

Question 43

Question
in general metabolic terms, food digestion is a form of
Answer
  • metabolism; cellular respiration
  • anabolism, catabolism
  • cellular respiration; metabolism
  • catabolism anabolism

Question 44

Question
the liver produces about _________ of blood cholesterol
Answer
  • 15%
  • 20%
  • 80%
  • 85%

Question 45

Question
which of the following is an essential fatty acid
Answer
  • triglyceride
  • linoleic acid
  • c. leucine
  • tyrosine

Question 46

Question
What is the true function of molecular oxygen acquired by the lungs?
Answer
  • oxygen catalyzes the breaking of bonds in the glucose molecules
  • Oxygen catalyzes the synthesis of ATP
  • Oxygen serves as the final electron acceptor for the oxidation of food molecules
  • Oxygen drives energy dependent processes in our cell.

Question 47

Question
Which of the following is a lipid that is NOT used for energy?
Answer
  • triglyceride
  • fatty acid
  • cholesterol
  • saturated fat

Question 48

Question
Which vitamin in extreme excess causes liver damage?
Answer
  • biotin
  • niacin
  • ascorbic acid
  • tocopherol

Question 49

Question
This mineral is widely distributed in our plasma and tissue fluid (extracellular fluid).
Answer
  • iron
  • calcium
  • sodium
  • potassium

Question 50

Question
This mineral is the most abundant mineral in the human body
Answer
  • iron
  • calcium
  • sodium
  • potassium
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