BIO 150 EXAM 2
when air entering the respiratory tract leaves the pharynx, it next enters the
Larynx
if an individual is o+ which of the following antigens are on the surface of his or her red blood cells
Rh
the pacemaker of the heart is the
SA Node
which major digestive process involves nutrient molecules passing across the mucosal layer of the gastrointestinal tract into the blood or lymph
absorption
where in the lungs does the co2 and o2 exchange take place
alveoli
which one best describes an angiogram
an x-ray picture of blood vessels
a condition in which wheezing occurs with breathlessness and a persistent cough, and yields yellowish or greenish phlegm is
bronchitis
ventricular fibrillation is occurring in a patient who has just arrived in the emergency room, which one of the following treatments may be applied immediately to correct this potentially fatal arrhythmia
cardio version
arthrosclerosis is a condition that results in a thickening of arterial walls due to buildup of fatty deposits containing
cholesterol
the pancreatic ducts connect to the small intestine at the
duodenum
erythropoietin is a hormone secreted by the spleen that results in an increased production of red blood cells
false
during exhalation the pressure inside the lungs
initially higher than atmospheric pressure but drops as air leaves the body
the respiratory control center is located
medulla oblongata
which one of the following populations of cells is most markedly increased during bacterial infections
neutrophils
blood pressure in the veins is lower than in arteries, and a series of _ are necessary to prevent back flow of blood
one-way valves
the salivary glands include
parotid, submandibular, sublingual
type of muscle movement in the digestive system to move food is called
peristalsis
which of the following is a penetrating wound resulting in collapse of the lung
pneumothorax
these structures serve as gates that regulate blood flow from arterioles into capillaries
pre capillary sphincters
pepsin is an enzyme that acts on
proteins
after blood flows through the right atrium of the heart, its next major destination is the
right ventricle
movement of stimulus that causes a hear contraction
sinoatrial node- atria- atrioventricular node- atrioventricular bundle- purkinje fibers- ventricles
majority of nutrients are absorbed here
small intestine
amylase is an enzyme that breaks down
starch
lung diseases, such as emphysema can be diagnosed by measuring lung volumes and the rates at which these volumes change
true
the cardiac cycle consists of a period of heart contraction called systole and a period of heart relaxation called diastole
true
the rate and depth of normal breathing are controlled by the need to get rid of co2
true
unlike red blood cells, white blood cells are capable of leaving blood vessels to enter the tissue fluid between cells
true
in which one of the following blood vessels is blood under the lowest pressure
veins
