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lymphocyte
Label cell type A
eosinophil
Label cell type B
monocyte
Label cell type C
basophil
Label cell type D
neutrophil
Label cell type E
aortic arch
Label structure A (heart)
pulmonary trunk
Label structure B (heart)
left atrium
Label structure C (heart)
right atrium
Label structure D (heart)
left ventricle
Label structure E (heart)
right ventricle
Label structure F (heart)
inferior vena cava
Label structure G (heart)
cardiac muscle
Label muscle/muscle fiber type A
skeletal muscle
Label muscle/muscle fiber type B
C
Which letter indicates the region of the spleen that is composed mostly of lymphocytes?
C
Here are three blood vessels. Assuming that the difference in pressure along the length is the same for each, which would have the greatest blood flow?
thyroid hormone
A newly developed pesticide has been observed to bind to an intracellular hormone receptor. If ingested, residue from this pesticide could disrupt levels of
Adenylyl cyclase will not be activated.
A small molecule binds to a G protein, preventing its activation. What direct effect will this have on signaling that involves cAMP?
neural
A student is in a car accident and, although not hurt, immediately experiences pupil dilation, increased heart rate, and rapid breathing. What type of endocrine system stimulus did the student receive?
nerve axons
The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of
TSH
Which of the following is an anterior pituitary hormone?
ADH
Which of the following hormones contributes to the regulation of the body's fluid and electrolyte balance?
there is an excessive accumulation of colloid in the thyroid follicles
The development of a goiter indicates that
the activity of osteoclasts
When blood calcium levels are low, PTH stimulates
reduced mental activity
Which of the following responses is not part of the fight-or-flight response?
glucagon
If an autoimmune disorder targets the alpha cells, production of which hormone would be directly affected?
Insulin facilitates the movement of intracellular glucose transporters to the cell membrane.
Which of the following statements about insulin is true?
increase blood pressure
The end result of the Renin-Angiotensin-Aldosterone-System is to
blood oxygen levels
Athletes may take synthetic EPO to boost their
Epinephrine, a water-soluble hormone, binds to a receptor in the plasma membrane of the target cell.
Which statement correctly describes the interaction between a hormone and its target cell?
neural; the stimulus ending
The stimulus for oxytocin release is a _______ stimulus, and oxytocin release will be terminated by ________.
humoral
Elevated blood glucose levels stimulate cells of the pancreas to secrete the hormone insulin. The pancreas is responding to which type of stimulus?
The posterior pituitary releases oxytocin into the blood in response to action potentials from the hypothalamus
Select the correct statement regarding hypothalamus and pituitary interactions.
growth hormone; stimulates growth, especially skeletal muscle and bone
Which anterior pituitary hormone is correctly paired with its effect?
cortisol; increases blood glucose level
Which adrenal gland hormone is correctly paired with one of its effects?
atrial natriuretic peptide
The heart produces ______, which reduces blood volume and blood pressure.
important anabolic hormone; many of its effects mediated by IGFs
growth hormone
stimulates milk production
prolactin
tropic hormone that stimulates the gonads to secrete sex hormones
leutinizing hormone
increases uterine contractions during birth, secreted by posterior pituitary
oxytocin
major metabolic hormones of the body
T4 and T3
causes reabsorption of sodium ions by kidneys, only steroid hormone on list,
aldosterone
tropic hormone that stimulates thyroid gland to secrete thyroid hormone
TSH
secreted by posterior pituitary, causes kidneys to conserve water &/salt
antidiuretic hormone
increase heart rate, increase blood pressure, dilate the bronchioles, and decrease digestive activity
A hypodermic injection of epinephrine would
depression of CNS & lethargy
Absence of thyroid hormone would result in
erythrocytes
Identify the most numerous formed elements in blood.
The biconcave shape provides a greater surface area relative to the cell volume.
Select a structural characteristic of a red blood cell that contributes to its gas transport function
erythropoietin
Inadequate blood oxygen levels causes the kidneys to release which chemical messenger?
The kidneys fail to produce enough erythropoietin, a hormone needed for red blood cell production.
Which of the following best explains why patients with advanced kidney disease often develop anemia?
neutrophil & monocyte (a & e)
Are or become important phagocytes
eosinophil, basophil, neutrophil (b, d, e)
Granulocytes.
lymphocyte (a)
Abundant in lymph nodes and in the spleen.
basophil
Granule contents similar to those of mast cells
eosinophil
Which leukocyte kills parasitic worms by releasing enzymes from cytoplasmic granules?
megakaryocytic
Platelets develop from which precursor cells?
1) vascular spasm, (2) platelet plug formation, (3) coagulation
Correctly order the three steps of hemostasis.
thrombocytopenia
Which bleeding disorder results from not having enough platelets?
type A
Which ABO blood type has red blood cells with type A antigens (agglutinogens) on their external surface and anti-B antibodies (agglutinins) in the blood plasma?
AB negative
A blood sample agglutinates (clumps) with anti-A and anti-B sera, but not with anti-Rh (D) serum. Which blood type does this test reveal?
basophil
The white blood cell that releases histamine and other inflammatory chemicals is the
copper, zinc, and vitamin B12
The production of healthy erythrocytes depends upon the availability of ________.
diapedesis
The process by which leukocytes squeeze through adjacent cells in a blood vessel wall is called
basophils
A patient has been experiencing severe, persistent allergy symptoms that are reduced when she takes an antihistamine. Before the treatment, this patient was likely to have had increased activity of which leukocyte?
an Rh− person is carrying a second Rh+ fetus
Hemolytic disease of the newborn is a risk during a subsequent pregnancy in which
The rapid breakdown of defective erythrocytes releases large amounts of hemoglobin, which is converted into bilirubin.
Why does a patient with thalassemia often develop jaundice and have high bilirubin levels?
The blood sample underwent clotting, and the serum separated from the clot.
A lab technician collects a blood sample in a glass tube. After about an hour, she harvests serum to continue her blood analysis. What happened to the blood sample in the glass tube that allowed the lab technician to harvest serum?
Type O negative, because it lacks A and B antigens, making it the universal donor.
In an emergency situation where a patient's blood type is unknown, which type of blood is transfused and why?
Severe burns trigger an immune response, increasing white blood cell production to fight infection and aid healing
Why is leukocytosis an expected finding in a patient with a severe burn injury?
tricuspid valve
Which heart valve prevents backflow into the right atrium?
The left ventricle wall is thicker than the right ventricle wall
Which of the following statements is true?
pulmonary trunk
Which structure does the right ventricle pumps blood into?
cardiac muscle
refractory period is almost as long as the contraction
skeletal muscle
source of calcium for contraction in only sarcoplasmic reticulum
Intercalated discs connect adjacent muscle cells.
Which anatomical or physiological feature correctly describes cardiac muscle and not skeletal muscle?
sinoatrial node
Which component of the conduction system normally sets the pace for the heart as a whole?
QRS complex
Identify the component of the ECG that corresponds to depolarization of the ventricles.
the semilunar valves open
What happens when the ventricular pressure exceeds the aortic pressure?
end diastolic volume
Which term refers to the volume of blood remaining in a ventricle after contraction?
increased preload
Select the factor that increases cardiac output.
tricuspid, pulmonary semilunar, bicuspid, aortic semilunar
Which of the following lists the valves in the order through which the blood flows from the vena cava through the heart?
Only cardiac muscle is capable of autorhythmicity
Which of the following is unique to cardiac muscle cells?
calcium
The influx of which ion accounts for the plateau phase?
None of the above; atrial repolarization is masked by ventricular depolarization
Which portion of the ECG corresponds to repolarization of the atria?
closing of the atrioventricular valves
The first heart sound represents which portion of the cardiac cycle?
afterload
The force the heart must overcome to pump blood is known as ________.
it increases
What happens to preload when there is venous constriction in the veins?
right upper limb
Which body region drains lymph into the right lymphatic duct?
interstitial fluid that has entered the lymphatic vesicles
What is lymph?
reticular cells
Which lymphoid cells produce the lymphoid tissue stroma?
thymus
Select the example of a primary lymphoid organ.
red bone marrow
Where do B lymphocytes mature to become immunocompetent lymphocytes?
there are more afferent vessels feeding the node than efferent vessels draining it
Which statement is correct regarding lymph node structure?
It removes bloodborne pathogens and old, defective red blood cells.
What is a function of the spleen?
wall of the small intestine
Where are Peyer's patches located?
it is a bilobed organ prominent in newborns
Select the correct description of the thymus.
It's the primary lymphoid organ where T cells become immunocompetent.
Which phrase correctly characterizes the thymus?
transport leaked plasma protiens and fluids to the cardiovascular system
Lymphatic vessels
greater fluid pressure in the interstitial space
Entry of lymph into the lymphatic capillaries is promoted by which of the following
reticular tissue
The structural framework of lymphoid organs is