Which of the following transports oxygen rich blood?
pulmonary vein
to ausculate the aortic semilunar valve, you would place your stethoscope in the.....
second intercoastal space to the right of the sternum
during an afternoon class, Lisa starts to feel hungry and worries that her blood sugar level may be dropping. Which hormone is helping to prevent a drop in blood sugar level?
glucagon
an individual who is blood type AB negative can....
receive any blood type in moderate amounts except that with the Rh antigen
chemical substances secreted by cells into the extracellular fluids that travel through the blood and regulate the metabolic function of other cells in the body are called
hormones
oxytocin...
release is an example of a positive feedback control mechanism
normal development of the immune response is due in part to hormones produced by the
thymus gland
which of the following is not a functional characteristic of WBCs?
granulosis
if the length of the absolute refractory period in cardiac muscle cells was the same as it is for skeletal muscle cells.......
? contractions might occur, which would stop the hearts pumping action
regulating hormones from the hypothalamus...
first enter into the hypophyseal portal system
mineralcorticoroid is to aldosterone as glucocorticoroid is to....
cortisol
correct the correct statement about the heart valves
the AV valves prevent backflow of blood into the atria during ventricular contraction
the left ventricular wall of the heart is thicker than the right wall in order to
pump blood with greater pressure
when neither anti-A serum or anti-B serum clot on a blood plate with donor blood, the blood type is.....
O
when does the period of atrial repolarization occur?
ventricular depolarization
a person with an extremely high count of neutrophils is likely suffering
a bacterial infection
the source of blood carried to capillaries in the myocardium would be the ...
coronary arteries
if we were able to artifically alter the membrane permeability of pacemaker cells so that sodium influx is more rapid, ....
threshold is reached more quickly and heart rate would increase
gluconeogenesis, the formation of glucose from fats and proteins, is due to the action of...
cortisol
compared to skeletal muscle, cardiac muscle....
has gap junctions that allow it to act as a functional syncytium
loss of fibrinogin with the plasma would most likely cause which of the following?
loss of blood clotting
which of the following is NOT a parathyroid gland mechanism to maintain adequate levels of blood calcium?
inhibition of calcitonin synthesis
blood within the pulmonary veins returns to the ...
left atrium
several hormones ae synthesized in the hypothalamus and transported to the anterior pituitary gland. the machanism of transportation from hypothalamus to anterior pituitary gland is through the...
hypophyseal portal system
Which vessel of the heart receives blood from the right ventricle?
pulmonary trunk
the posterior lobe of the pituitary gland is NOT a true endocrine gland because....
it is only a hormone storage area that receives hormones from the hypothalamus for release
which of the following is NOT a category for endocrine gland stimulus?
enzymatic
one of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients. which of the following describes this mechanism?
hormonal stimulation
during exercise, which of the following would occur on an ECG compared to an individual at rest?
the time from one R to the next R would decrease
which of the following is NOT part of the intrinsic conduction system of the heart?
AV valve
Which of the events below does NOT occur when the semilunar valves are open?
ventricles are in diastole
Together, leukocytes and platelets comprise approximately ________ percent of total blood volume.
1
antidiuretic hormone (ADH)
secretion is inhibited by alcohol
which of the following factors does not influence heart rate
skin color
which of the following is not a structural characteristic that contributes to erythrocyte gas transport functions?
mitotically active
What is the average normal pH range of blood?
7.35-7.45
Which blood type is the universal donor?
O
which of the following is not a phase of hemostasis?
fibrinolysis
which of the following receive blood during ventricular systole?
both the aorta and pulmonary trunk
select the correct statement about the function of myocardial cells.
the entire heart contracts as a unit or it does not contract at all
A man has been told that he is not synthesizing enough follicle-stimulating hormone (FSH), and for this reason he may be unable to father a child. Choose the correct statement to explain this problem.
FSH stimulates sperm production in the testes
No visible cytoplasmic granules are present in ________.
monocytes
During the period of ventricular filling ________.
blood flows passively through the atria and the open AV valves into the ventricles
Adrenocorticotropic hormone (ACTH)
secretion is regulated by a hypothalamic regulatory hormone
When viewing a dissected heart, it is easy to visually discern the right and left ventricles by ________.
noticing the thickness of the ventricle walls
Normal heart sounds are caused by which of the following events?
closure of the heart valves
which of the following is characteristic of all leukocytes?
they are nucleated
Fred's blood was determined to be AB positive. What does this mean?
there are no antibodies to A, to B, or to Rh antigens in the plasma
bisphenol-A (BPA) is an endocrine disruptor that can leach out of certain plastics.............which of the following explains how persistent small amounts of BPA in the body can have effects?
up-regulation
which of the following is a protective function of blood?
maintenance of body temp
the P wave of a normal electrocardiogram indicates.....
atrial depolarization
which of the following is NOT a steroid based hormone?
epinephrine
the AV valves are closed ..
when the ventricles are in systole