Exam 3 H-bio Ch10-11
the primary function of the stomach is to
absorb major nutrients
triggered by allergen
asthma
which disorder is characterized by bronchiole spasms?
asthma
Which disorder is classified a COPD?
emphysema
in which disorder is the elastic tissue of the lung
emphysema
why is the pancreas both an endocrine and an exocrine gland?
it secretes pancreatic juice through the pancreatic duct and insulin into the blood
most of the nutrient digestion and absorption take place in the
jejunum
caused by a bacterial or viral infection
pneumonia
cigarette smoking causes__.
slow bone healing
which layer of the digestive tract contains blood and lymph vessels?
submucosa
the liver preforms all of the following functions except for
secreting digestive enzymes into the small intestines
of the 20 amino acids available for protein synthesis how many must be obtained by dietary means?
8
stomach emptying is controlled by the secretion of
CCK
condition that can develop over 20-30 years
COPD
which infectious agent produce explosive diarrhea and foul-smelling belches?
Giardia intestinalis
which of the following is necessary for stomach enzyme activation?
HCI
which of the following is not a liver function?
It secretes digestive enzymes into the small intestine.
most common form of lung cancer
adenocarcinoma
during normal quiet exhalation,__.
alveolar pressure rises above atmospheric
the most important factor that regulates breathing activity is the___.
amount of carbon dioxide in the blood
disruption in the neural control of breathing
apnea
in which disorder is the neural control of the breathing cycle disrupted?
apnea
foods made from refined white flour and refined sugars
are linked to increase rick of heart disease and type 2 diabetes
what serves as an emulsifying agent in the small intestine?
bile
what is found within a small intestinal villus?
blood and lymph vessels
the respiratory pacemaker center is located in the ____.
brain stem
Which of the following is not part of the upper respiratory tract?
bronchi
increased mucus production
bronchitis
the majority of carbon dioxide carried in the blood is found is found in which form?
converted to bicarbonate
which of the following is an inflammatory disorder that affects the eyes, skin, liver, intestines?
crohn's disease
a diet low in fiber can leas to
diverticulitis
during the process of gas exchange, gases move ___.
down partial pressure gradients
the 1st portion of the small intestines is the
duodenum
the pancreas secretes digestive enzyme into the
duodenum
lungs distended and inelastic
emphysema
during swallowing food, which structures moves downward to prevent food from entering the trachea?
epiglottis
the lipids that cannot be synthesized by the liver are classified as
essential fatty acids
true or false. The role of the respiratory system is to ensure that oxygen leaves the body and carbon dioxide enters the body.
false
true or false: even if you quit smoking, the damage to your lungs is already and they will not return to normal.
false
which of the following is not a malabsorption disorder?
hepatitis
The term that describes a tissue lacking oxygen is ____.
hypoxic
when the pH of the blood becomes more acidic, the respiratory center
increase the rate and increase the depth of breathing
What accounts for the release of more oxygen from hemoglobin around highly active tissue?
increased blood pressure
you take a deep breath and then take a maximal exhale. the amount of air leaving your lungs is the___.
inspiratory reserve volume
the stomach secretion that aids in cit b12 absorption is
intrinsic factor
Which of the following is not part of the lower respiratory tract?
larynx
which part of the lower respiratory tract is intimately in contact with the cardiovascular system?
lungs
If it were not for the nasal cavity,
more debris would enter the lungs
what is the correct order of components of the digestive tract?
mouth,pharynx, esophagus, stomach,small intestine, large intestine, rectum, anus
danger of e-cigarettes
nicotine
decompression sickness occurs when which gas forms bubbles in the blood?
nitrogen
what diffuses from the air in the alveoli into the blood?
oxygen
which structure has both endocrine and exocrine function?
pancreas
the major determinant of the amount of oxyhemoglobin formed in the lung is __.
partial pressure of oxygen
the process that pushes food through the esophagus is called
peristalsis
the major nerve that controls inspiratory activity is the __.
phrenic nerve
a plant compound thatr may reduce the risk of heart disease and cancer is classified as a(n)
phytochemical
a collapsed lung occurs when a pressure in the ____.
pleural cavity increases
Upon X-ray, it could be seen that Josh's lungs were filled with fluid. What is the proper diagnosis for Josh's illness?
pneumonia
which portion of the stomach is connected to the duodenum?
pyloric sphincter
when red blood cells interact with tissue where the oxygen concentration is low, hemoglobin__.
release oxygen
you take a deep breath and take a maximal exhale. the amount of air left in you lungs is the ___.
residual volume
the saliva component that begins the breakdown of carbohydrates is
salivary amylase
the contraction w/in the small intestines that aid in digestion and absorption are known as
segmentation
most aggressive type of lung cancer
small cell carcinoma
which of the following is not a characteristic of alveoli?
small overall surface area
which type of lung cancer is the most aggressive form?
small-cell carcinoma
The broad band of loose connective tissue beneath the mucosa that contains blood vessels, lymph, and nerves is called the
submucosa
the cause of infant respiratory distress syndrome is a lack of ___.
surfactant
bacterial infection that destroys patches of lung tissue
tb
which disorder is the result of a bacterial infection that destroys patches of lung tissue and can also spread to other body parts?
tb
In addition to the partial pressure gradient, the other major factor that determines the rate of diffusion of gases in the lungs is ____
the alveoli membrane surface area
in the final phase of digestion
the end products are absorbed across brush border cells?
What do inspiration and expiration have in common?
they both use the same pathways
which portion of the larynx is the adam's apple?
thyroid cartilage
the amount of air that enters and leaves he lung with each breath is ___.
tidal volume
the amount of air that moves in and out with each breath is called the ___
tidal volume
which of the following is not a funtion of the digestive system?
to protect against pathogens
how does the respiratory center control the diaphragm?
via the phrenic nerve
night blindness and skin problems are due to a deficiency of
vit A
Weak bones and rickets in children are due to a deficiency of ____.
vit D
which vitamin is found in leafy green veggies and are necessary for proper blood clotting
vit k
Which portion of the swallowing process is voluntary?
voice box?o
