QUESTION 120 Which is the longest stage of labor? the dilation (first) stage the
ID: 3484204 • Letter: Q
Question
QUESTION 120
Which is the longest stage of labor?
the dilation (first) stage
the expulsion (second) stage
the placental (third) stage
the postpartum stage
the puerperium stage
0.5 points
QUESTION 121
The hormone oxytocin aids the birth process by stimulating
fetal muscular movements.
uterine wall contractions.
an increase in progesterone secretion.
an increase in estrogen secretion.
0.5 points
QUESTION 122
The hematocrit is
an estimate of blood flow/hour.
the number of WBCs per mm3.
the amount of hemoglobin by weight in the blood.
the percentage of RBCs in a given volume of blood.
the number of RBCs in the body.
0.5 points
QUESTION 123
During expiration, the alveolar pressure must be
greater than atmospheric pressure.
less than atmospheric pressure.
equal to atmospheric pressure.
greater than pleural pressure.
None of these choices is correct.
0.5 points
QUESTION 124
In an ECG, the P wave represents
depolarization of the atria.
depolarization of the ventricles.
repolarization of the atria.
repolarization of the ventricles.
0.5 points
QUESTION 125
The tricuspid valve regulates the opening between
the right atrium and the left atrium.
the right atrium and right ventricle.
the right atrium and the left ventricle.
the left atrium and the left ventricle.
the left ventricle and the right ventricle.
0.5 points
QUESTION 126
Another name for urination is
defecation.
mastication.
micturition.
peristalsis.
0.5 points
QUESTION 127
Plasma is ____ while formed elements are ____.
a blood gas; blood clots
the liquid portion of blood; the cells
lacking in protein; regulators of blood osmolality
the cellular portion of blood; acellular components
mostly protein; the matrix
0.5 points
QUESTION 128
Which of the following is the correct order for the tissues of the digestive tract from external to internal?
muscularis, mucosa, submucosa, serosa
serosa, muscularis, submucosa, mucosa
mucosa, submucosa, muscularis, serosa
submucosa, mucosa, muscularis, serosa
0.5 points
QUESTION 129
Contraction of the respiratory muscles causes the thoracic cavity to ______ in volume.
increase
decrease
remain unchanged
0.5 points
QUESTION 130
Water moves back and forth across the plasma membrane by the process of
osmosis.
filtration.
facilitated diffusion.
active transport.
endocytosis.
0.5 points
QUESTION 131
Arrange the following structures in correct sequence:
(1) ureter
(2) renal pelvis
(3) calyx
(4) urinary bladder
(5) urethra
1, 2, 3, 4, 5
3, 2, 1, 4, 5
2, 4, 5, 3, 1
3, 4, 1, 2, 5
1, 3, 2, 4, 5
0.5 points
QUESTION 132
What do all hormones have in common?
They are made from amino acids.
They are bound to transport molecules in the blood.
They bind to and interact with a receptor in the target cell.
They use the second messenger mechanism to control the target cell.
They are all lipid-soluble.
0.5 points
QUESTION 133
The kidneys play a major role regulating blood volume.
True
False
0.5 points
QUESTION 134
What hormone is antagonistic to the actions of aldosterone?
cortisol
atrial natriuretic peptide
ACTH
epinephrine
0.5 points
QUESTION 135
What type of tissue forms the mucosa of the trachea?
pseudostratified ciliated columnar epithelium
keratinized stratified squamous epithelium
stratified squamous epithelium
simple columnar epithelium
0.5 points
QUESTION 136
During the ventricular systole, the AV valves _______ and the semilunar valves _____.
close; open
close; close
open; close
open; open
0.5 points
QUESTION 137
The cardiac output is dependent on
heart rate.
respiration rate.
stroke volume
Both heart rate and stroke volume are correct.
0.5 points
QUESTION 138
The kidneys aid in maintaining blood pressure by
preserving salt and water balance.
maintaining a normal blood volume.
producing renin.
All of the choices are correct.
0.5 points
QUESTION 139
Structurally, lymph vessels are most similar to
veins.
arteries.
arterioles.
capillaries.
venules.
0.5 points
QUESTION 140
Which of the following represents the correct sequence when tracing the path of blood from the superior or inferior vena cava to the lungs?
left atrium, pulmonary semilunar valve, left ventricle, mitral valve, pulmonary arteries
right atrium, tricuspid valve, right ventricle, pulmonary semilunar valve, pulmonary arteries
tricuspid valve, right atrium, aortic semilunar valve, right ventricle, pulmonary veins
pulmonary semilunar valve, right atrium, mitral valve, right ventricle, pulmonary veins
0.5 points
QUESTION 141
Calcitonin
raises blood calcium.
lowers blood calcium.
deposits excess calcium into bones.
Both lowers blood calcium and deposits excess calcium into bones are correct.
0.5 points
QUESTION 142
As a child, you had the chicken pox. You are exposed to chicken pox several years later, but you do not get them again. What kind of immunity do you have?
natural active
artificial active
natural passive
artificial passive
0.5 points
QUESTION 143
Bacteria in the large intestine
break down some undigested food.
produce vitamins.
produce gas.
All of the choices are correct.
0.5 points
QUESTION 144
Edema is
cancer of lymphoid tissue.
swelling of lymph nodes due to infection.
swelling due to excess tissue fluid.
infection of a lymphatic vessel.
0.5 points
QUESTION 145
The three most abundant classes of nutrients are
carbohydrates, proteins, and minerals.
fats, proteins, and carbohydrates.
proteins, nucleic acids, and carbohydrates.
triglycerides, starches, and proteins.
proteins, fats, and minerals.
0.5 points
QUESTION 146
Which of the following is NOT a function of saliva?
starts the digestion of proteins
moistens food for swallowing
starts the digestion of starches
removes microbes
0.5 points
QUESTION 147
What type of receptors, found in the aorta and common carotids arteries, send information to the cardioregulatory center to control heart rate?
proprioceptors
nociceptors
baroreceptors
photoreceptors
0.5 points
QUESTION 148
Which auditory ossicle is attached to the tympanic membrane?
labyrinth
incas
malleus
stapes
oval window
0.5 points
QUESTION 149
The right atrium
receives oxygen rich blood from lungs.
pumps oxygen rich blood toward the body tissues.
receives oxygen poor blood from the body tissues.
pumps oxygen poor blood to the lungs.
0.5 points
QUESTION 150
Which of the following is NOT a component of saliva?
the dilation (first) stage
the expulsion (second) stage
the placental (third) stage
the postpartum stage
the puerperium stage
Explanation / Answer
120. The answer is the dilation (first) stage (averages 10 to 12 hours)
121. The answer is uterine wall contractions
122. The answer is the percentage of RBCs in a given volume of blood.
123. The answer is greater than atmospheric pressure.
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