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Produces electrolytes
Which of the following is NOT a function of a hormone?
Regulates metabolism
Controls growth and development
Regulates glandular secretions
Produces electrolytes
Regulates chemical composition and volume of the internal environment
antagonistic effect
When one hormone opposes the action of another hormone, it is called a(n)
local effect.
circulating effect.
synergistic effect.
permissive effect.
antagonistic effect
Mechanical stretching of the endocrine cell
Which of the following is NOT a common method of stimulating hormone secretion from an endocrine cell?
Signals from the nervous system
Chemical changes in the blood
Mechanical stretching of the endocrine cell
Releasing hormones.
Both Signals from the nervous system and Chemical changes in the blood
Neurohormones released from the hypothalamus
What controls hormone release from the anterior pituitary gland?
Muscle contraction
Neurohormones released from the hypothalamus
The peripheral nervous system
Action potentials from the thalamus
Chemical changes in the cerebrospinal fluid (CSF)
Synthesis of calcitonin
Which of the following statements does NOT describe a step in the synthesis and secretion of T3 and T4?
Coupling of T1 and T2
Oxidation of iodide
Synthesis of calcitonin
Iodination of tyrosine
Iodide trapping
Calcium
Parathyroid hormone is the major regulator of the plasma concentration of which of the following ions?
Manganese
Chloride
Calcium
Sodium
Potassium
Dehydration
Which of the following conditions would result from hyposecretion of aldosterone?
Decreased oxygen delivery to the brain
Metabolic alkalosis
Decreased airway dilation
Dehydration
Decreased heart rate
Insulin
Which blood glucose-lowering hormone is produced by the pancreatic islet cells?
Insulin
Glucagon
Somatostatin
Thyroid hormones
Calcitonin
Thyroid Hormone
Which of the following hormones promotes increases in the basal metabolic rate (BMR)?
Adrenocorticotropic hormone
Insulin
Glucagon
Thyroid hormone
Calcitonin
Cortisol, hGH, Thyroid hormone
Which of the following hormones play key regulatory roles in the body's long-term response to stress?
hGH, Insulin, Aldosterone
Insulin, Glucagon, Thyroid hormone
Cortisol, hGH, Thyroid hormone
Parathyroid hormone, Cortisol, hGH
Calcitonin, Thyroid hormone, Insulin
Increased digestive activities
Which of the following is NOT a common response of the body to long-term stress?
Increased lipolysis
Increased glycogenesis
Increased breakdown of proteins
Increased gluconeogenesis
Increased digestive activities
Leptin enhances appetite.
Which of the following is an incorrect pairing of a body system and an endocrine contribution to that system?
Epinephrine depresses the activity of the digestive system.
Leptin enhances appetite.
Thyroid hormones promote normal development and growth of the skeleton.
Erythropoietin regulates the amount of oxygen carried in blood by adjusting the number of red blood cells.
Glucocorticoids depress inflammation and immune responses.
SAD
Hypersecretion of a hormone by the endocrine gland marked in the diagram results in a type of depression that affects some people during the winter months, when the day length is short, known as
thyroid crisis (storm).
Addisonian crisis.
general adaptation syndrome (GAS).
seasonal affective disorder (SAD).
posttraumatic stress disorder (PTSD).
placenta.
Human chorionic gonadotropin (hCG) is produced by the
hypothalamus.
ovaries.
testes.
pituitary gland.
placenta.
adipose tissue.
Leptin is a hormone produced by the
placenta.
pituitary gland.
ovaries.
testes.
adipose tissue.
Ectoderm
The anterior pituitary develops from which of the following germ layers during embryonic development?
Mesoderm
Endoderm
Ectoderm
A combination of two of the layers
None of the answer selections are correct
sebaceous gland
Which of the following glands is NOT an endocrine gland?
pituitary gland
thyroid gland
adrenal gland
sebaceous gland
pineal gland
Circulating hormone
Since insulin released from the pancreas is carried in the bloodstream to distant target cells, like muscle cells, it is considered to be a(n)
autocrine.
paracrine.
circulating hormone.
neurotransmitter.
local hormone.
All
Which of the following is an example of a hormone that is secreted from an endocrine gland in response to a chemical change in the blood?
Parathyroid hormone release from the parathyroid gland.
ADH release from the posterior pituitary gland.
All the answer selections are correct.
Glucagon release from the pancreas.
Insulin release from the pancreas.
follicle-stimulating hormone.
All the following hormones are produced and secreted by the ovaries EXCEPT
estradiol.
inhibin.
progesterone.
follicle-stimulating hormone.
estrone.
Production of oxygen
Which of the following is NOT a major function of the blood?
Transportation of heat
Production of oxygen
Transportation of nutrients
Regulation of blood pH
Protection against infectious disease
Hemocytoblasts are a common component of circulating blood.
Which of the following is NOT a true statement regarding blood?
The normal average temperature of blood is around 100.4o F.
The normal pH range for blood is 7.35-7.45.
Blood is a liquid connective tissue consisting of cells and a liquid extracellular matrix.
Hemocytoblasts are a common component of circulating blood.
The primary circulating blood cell is the RBC.
hemopoiesis.
The process by which the formed elements of the blood develop is called
polycythemia.
hemopoiesis.
thrombocytosis.
hemostasis.
hematospermia.
erythropoietin (EPO)
Which of the following hormones stimulates proliferation of red blood cells in red bone marrow?
human growth hormone (hGH)
calcitonin (CT)
follicle-stimulating hormone (FSH)
thrombopoietin (TPO)
erythropoietin (EPO)
gas transport.
The major function of red blood cells is
cytokine stimulation.
blood cell proliferation.
gas transport.
disease resistance.
nutrient transport.
Neutrophil
Which of the following blood cells is a phagocyte?
Basophil
Platelet
Lymphocyte
Erythrocyte
Neutrophil
Basophil
Which of the following blood cells release granules that intensify the inflammatory response and promote hypersensitivity (allergic) reactions?
Eosinophil
Neutrophil
Monocyte
Lymphocyte
Basophil
vascular spasm, platelet plug formation, clotting
Which of following correctly lists the sequence of steps that occur during hemostasis in response to a damaged blood vessel?
vascular spasm, platelet plug formation, clotting
anemia, hemogenesis, platelet plug formation
hemolysis, vascular spasm, platelet plug formation
vascular spasm, clotting, polycythemia
emigration, clotting, hemolysis
Mom is Rh negative and fetus is Rh positive
Which of the following situations could result in maternal antibodies attacking fetal blood cells during a second pregnancy?
Mom is Rh negative and fetus is Rh positive
Mom is Rh positive and fetus is Rh positive
Mom is Rh negative and fetus is Rh negative
Mom is Rh positive and fetus is Rh negative
Heparin
Which of the following substances is an anticoagulant produced by mast cells and basophils?
Fibrinogen
Thromboxane A2
Heparin
Plasmin
Prostacyclin
plasma without the clotting factors.
Serum is
the same as plasma.
the same as lymph.
formed during the first step in blood clotting.
plasma without the clotting factors.
pulmonary interstitial fluid.
pernicious anemia
Reduced vitamin B12 absorption from the small intestine due to reduced intrinsic factor production in the stomach results in condition called
megaloblastic anemia.
pernicious anemia.
aplastic anemia.
iron deficiency anemia.
hemorrhagic anemia.
aplastic anemia.
Destruction of red bone marrow due to radiation results in
megaloblastic anemia.
pernicious anemia.
iron deficiency anemia.
hemorrhagic anemia.
aplastic anemia.
megaloblastic anemia.
A condition in which inadequate intake of vitamin B12 or folic acid causes production of large abnormal red blood cells is called
iron deficiency anemia.
megaloblastic anemia.
pernicious anemia.
hemorrhagic anemia.
aplastic anemia.
a condition in which the oxygen-carrying capacity of blood is reduced.
Anemia is defined as
a condition where blood does not clot properly.
a condition where blood cells are lysed by the immune response.
a condition where there is excessive bleeding.
a condition in which the oxygen-carrying capacity of blood is reduced.
none of these choices.
120 days
The average life span of an erythrocyte in the circulation is
120 days.
4 to 5 hours.
4 to 5 years.
5 to 9 days.
120 weeks.
no nucleus
Which of the following are characteristics of BOTH erythrocytes and thromobocytes?
cytoplasmic granules
no nucleus
develop from myeloblasts
large segmented nucleus
lifespan of 5 to 9 days
more than one answer selection is correct
thrombocytes
Which of the following formed elements in blood are removed by fixed macrophages in the spleen and liver after only 5 to 9 days in the circulation?
basophils
erythrocytes
monocytes
eosinophils
thrombocytes
the umbilical cord of a donor shortly after birth.
A cord-blood transplant involves obtaining the stem cells to transplant into the diseased patient from
the spermatic cord of a donor's testes.
the umbilical cord of a donor shortly after birth.
the irradiated bone marrow of the patient.
the spinal cord of an aborted fetus.
the spinal cord of the patient.
More than one of the answer selection is correct.
If type A blood is infused into a patient with type O blood, which of the following adverse reactions would you expect to observe in the patient?
More than one of the answer selection is correct.
No adverse reactions would occur.
Released hemoglobin clogging the filtration membrane of the kidneys.
Agglutination (clumping) of the transfused blood cells.
Complement-induced hemolysis of the transfused blood cells.
AB negative
Which of the following blood types is a person whose blood cells were agglutinated by both anti-A serum and anti-B serum, but not by anti-Rh serum?
AB negative
AB positive
O negative
O positive
None of the selections are correct
Mediastinum
Which of the following terms identifies the anatomical region found between the lungs that extends from the sternum to the vertebral column and from the first rib to the diaphragm?
Epicardium
Thoracic cavity
Abdominal cavity
Pericardium
Mediastinum
pericardium
The membrane that surrounds and protects the heart is called the
pleura.
endocardium.
pericardium.
myocardium.
mediastinum.
fibrous pericardium.
The outermost layer of the pericardium, which consists of inelastic dense irregular connective tissue, is called the
endocardium.
fibrous pericardium.
epicardium.
parietal layer of pericardium.
serous pericardium.
Pericardial fluid
Which of the following is used to reduce friction between the layers of membranes surrounding the heart?
Capillary endothelium
Synovial fluid
Endocardium
Pleural fluid
Pericardial fluid
Myocardium
Which layer of the heart wall consists of cardiac muscle tissue?
Myocardium
Epicardium
Pericardium
Endocardium
Hypocardium
gap junctions.
Cardiac muscle fibers are electrically connected to neighboring fibers by
desmosomes.
interneurons.
chordae tendinae.
tight junctions.
gap junctions.
Cardiac conduction system
Which network of specialized cardiac muscle fibers provide a path for each cycle of cardiac excitation to progress through the heart?
Pulmonary circuit
Intercalated discs
Cardiovascular center
Systemic circuit
Cardiac conduction system
SA node, AV node, Bundle of His, Purkinje fibers
Which of the following correctly lists the sequence of structures that a cardiac action potential follows in order to excite normal contraction of the heart?
SA node, AV node, Bundle of His, Purkinje fibers
Purkinje fibers, AV node, SA node, Bundle of His
Bundle of His, SA node, AV node, Purkinje fibers
Bundle of His, Purkinje fibers, Atrioventricular (AV) node
Sinoatrial (SA) node, Purkinje fibers, AV node, Bundle of His
cardiac output.
The volume of blood ejected from the left ventricle into the aorta each minute is called the
cardiac input.
stroke volume.
heart rate.
pulse pressure.
cardiac output.
systole
Which term refers to the period of time during a cardiac cycle when contraction of a chamber occurs and pressure within the chamber rises?
diastole
filling
repolarization
systole
fibrillation
Semilunar valves closing
The second heart sound (dupp) closely follows which of the events listed below?
Semilunar valves opening
Atrioventricular valves opening
Atrioventricular valves closing
Semilunar valves closing
Valvular stenosis
Increased potassium levels in plasma
Which of the following would lead to a decreased heart rate?
Increased sympathetic stimulation
Increased norepinephrine release
Increased potassium levels in plasma
Increased calcium levels in plasma
Increased thyroid hormone release
left or right, aorta or pulmonary trunk
Cardiac output is the volume of blood ejected from the _____ ventricle into the _____ each minute.
left, aorta
right, aorta
left or right, aorta or pulmonary trunk
right, pulmonary trunk
both left and right aorta are correct
Allowing blood to flow directly from the right atrium into the left atrium
What is the function of the foramen ovale during fetal life?
Prevents back flow of blood from pulmonary trunk into the right ventricle.
Prevents back flow of blood from aorta into the left ventricle.
Allowing blood to flow directly from the right ventricle into the left ventricle.
Allowing blood to flow directly from the right atrium into the left atrium.
Serves as a valve in the vena cava to regulate venous blood flow.
ventricular pressure increases and ventricular volume remains the same
Isovolumetric contraction is the phase of the cardiac cardiac cycle in which
the semilunar valves are open.
ventricular repolarization occurs.
ventricular pressure increases and ventricular volume remains the same.
atrial depolarization occurs.
oxygenated blood leaves the heart into the systemic circulation.
left ventricle
Which of the following chambers of the heart is surrounded by the thickest layer of myocardium?
right ventricle
right auricle
right atrium
left ventricle
left atrium
Valves
Heart murmurs are often heard in individuals with abnormalities in the _____ of the heart.
AV node
endocardium
valves
SA node
myocardium
a higher resting cardiac output.
In comparison to a sedentary individual, a well-trained athlete will usually have all the following characteristics EXCEPT
hypertrophy of the heart.
resting bradycardia.
a higher cardiac reserve.
a higher stroke volume.
a higher resting cardiac output.
cardiomyoplasty
A corrective cardiac procedure in which a large piece of a patient's own latissimus dorsi muscle is wrapped around the heart and stimulated by an implanted pacemaker to assist the pumping action of a damaged heart.
tetrology of Fallot
myocardial infarction
cardiomegaly
cardiomyopathy
cardiomyoplasty
Arteries
Which of the following blood vessels carries blood away from the heart to other organs?
arteries
capillaries
veins
venules
arterioles
Veins
Which of the following blood vessels carries blood from the tissues back to the heart?
arteries
capillaries
arterioles
aorta
veins
Diffusion
Which of the following is the most important method of capillary exchange?
bulk flow
primary active transport
secondary active transport
diffusion
transcytosis
blood colloid osmotic pressure.
The largest driving force for pulling fluid from the interstitial spaces back into the capillaries is
blood colloid osmotic pressure.
interstitial fluid hydrostatic pressure.
interstitial fluid osmotic pressure.
blood hydrostatic pressure.
glomerular hydrostatic pressure.
Cardiac output
The volume of blood that circulates through the systemic (or pulmonary) blood vessels per minute is called
cardiac reserve.
total peripheral resistance.
stroke volume.
tidal volume.
cardiac output.
Heart rate and stroke volume
Cardiac output is dependent on both
heart rate and stroke volume.
stroke volume and systemic vascular resistance.
blood pressure and heart rate.
heart rate and systemic vascular resistance.
blood type and stroke volume.
Increased arteriolar vasodilation
Which of the following would NOT result in an increase in arterial blood pressure?
Increased heart rate
Increased blood volume
Increased sympathetic stimulation
Increased stroke volume
Increased arteriolar vasodilation
Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs.
Which of the following is NOT a contribution of the cardiovascular system to other body systems?
Blood delivers calcium and phosphate ions that are needed for building bone extracellular matrix.
Blood carries carbon dioxide to body tissues and removes oxygen for use by other organs.
Blood carries newly absorbed nutrients and water to the liver.
Blood circulates cells and chemicals that carry out immune functions.
Blood delivers clotting factors and WBCs that aid in hemostasis when skin is damaged.
Medulla oblangata
The cardiovascular center is located
in the cerebral cortex.
in the thoracic cavity.
in the medulla oblongata.
in the cerebellum.
in the hypothalamus.
2 and 4
In which of the following types of blood vessels is blood pressure NOT pulsing?
1. Arteries
2. Capillaries
3. Arterioles
4. Venules
1 only
2 only
3 only
4 only
Both 2 and 4
pulse pressure
Abnormal conditions such as atherosclerosis and patent ductus arteriosus cause an large increase in the
venular hydrostatic pressure.
capillary hyrdostatic pressure.
central venous pressure.
blood colloid osmotic pressure.
pulse pressure.
Hypovolemic
This type of shock is due to decreased blood volume.
Hypovolemic
Obstructive
Vascular
Neurogenic
Cardiogenic
ANP
Which of the following would NOT occur in response to hypovolemic shock?
Activation of the renin-angiotensin-aldosterone (RAA) system.
Secretion of antidiuretic hormone (ADH).
Release of local vasodilators.
Activation of the sympathetic division of the ANS.
Release of atrial natriuretic peptide (ANP).
superior and inferior vena cava and coronary sinus.
All the veins of the systemic circulation eventually drain into the
superior vena cava.
superior and inferior vena cava.
coronary sinus.
inferior vena cava.
superior and inferior vena cava and coronary sinus.
R & L pulmonary arteries
The pulmonary trunk divides into
right and left common carotid arteries.
right and left pulmonary arteries.
right and left subclavain arteries.
right and left pulmonary veins.
brachiocephalic trunk and left subclavian artery.
Mesenteric
Which of the following vessels supplies blood to the intestines?
Radial artery
Popliteal artery
Coronary artery
Subclavian artery
Mesenteric artery
Tibial vein
Which of the following vessels drains blood from the lower leg?
Tibial vein
Jugular vein
Superior vena cava
Coronary vein
Inferior mesenteric vein
Jugular vein
Which of the following vessels drains blood from the head and neck?
Femoral vein
Jugular vein
Inferior vena cava
Median cubital vein
Axillary vein
Inferior vena cava
Which of the following vessels carries the venous blood from the lower body into the right atrium?
Superior vena cava
Tibial vein
Inferior vena cava
Coronary vein
Iliac vein
Angioblasts
During embryonic development, blood vessels are formed by
angioblasts.
osteoblasts.
pluripotent stem cells.
fibroblasts.
endodermal cells.
Increased compliance of the aorta
All of the following changes are commonly observed in the cardiovascular system in response to aging EXCEPT
decreased cardiac output.
increased compliance of the aorta.
loss of cardiac muscle strength.
decline in maximum heart rate.
increased systolic blood pressure.
Stage 1
Which of the following categories would an individual with a blood pressure of 145/95 be placed in?
Normal
Prehypertension
Stage 2 hypertension
Stage 1 hypertension
High normal
Maintaining water homeostasis in the body
Which of the following is NOT a function of the lymphatic and immune system?
Carrying out immune responses
Maintaining water homeostasis in the body
Draining excess interstitial fluid
Transporting dietary lipids
Location
What is the major difference between lymph and interstitial fluid?
Composition of electrolytes
Location
Types of proteins present
Red blood cells are present in interstitial fluid
White blood cells are present in lymph
Macrophages
Which of these does NOT provide a physical or chemical barrier?
Urine
Stratified squamous epithelium
Macrophages
Saliva
Mucus
Mucus production
Which of the following is NOT a sign of inflammation?
Redness
Pain
Heat
Mucus production
Swelling
Immunocompetent
When B and T cells are fully developed and mature, they are described as being
Immunocompetent
Pluripotent stem cells
Primary lymphatic cells
Specifically promoted
Germ cells
Antigen presenting cells
Which class of cells includes macrophages, B cells and dendritic cells?
T cells
Primary lymphocytes
Epitope cells
Antigen presenting cells
RBC
T cell
To become activated, which of the following requires being bound to a foreign antigen AND simultaneous costimulation?
Interferon
Antigen presenting cell
MHC antigen
B Cell
T Cell
Helper T cells
Which cells display CD4 proteins and interact with MHC Class II antigens?
Helper T Cells
Memory T Cells
MHC antigens
B cells
Cytotoxic T cells
IgA
Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions?
IgM
IgD
IgA
IgE
IgG
Opsonization
Which action makes microbes more susceptible to phagocytosis?
Cytolysis
Inflammation
Complement
Hybridoma
Opsonization
Anergy cells
Which of the following is an inactive, self responsive cell?
Anergy cell
Hybridoma cell
Epitopic cell
Natural killer cell
Deleted cell
immunodeficiency diseases
The inability of the immune system to protect the body from a pathogen causes
transplantations
autoimmune disease
graft
immunodeficiency diseases
allergy
Anaphylatic
An acute allergic response can lead to:
active immunity
transplantation
anaphylactic shock
retroviruses
passive immunity
Allergen
Antigens that induce an allergic reaction are called
granulysin
allergen
interleukin-1
lymphotoxin
perforin
T helper cells
Which cell is involved in both types of adaptive immunity?
T Helper cells
Macrophages
Cytotoxic T Cells
B lymphocytes
Eosinophils
Increased response of T cells to antigens
Which of the following is NOT an effect of aging on the immune system?
Decreased response to vaccines
Decreased production of antibodies
Increased response of T cells to antigens
Increased susceptibility to malignancies
Increased susceptibility to infections
Inhibition of the immune system
Which of the following is an effect of stress on the immune system?
Increased activity of B lymphocytes
Increased activity of T lymphocytes
Increased production of antibodies
Activation of the immune system
Inhibition of the immune system
Helper T cells
Which cells of the immune system are the primary targets the HIV virus?
B cells
Helper T cells
Cytotoxic T cells
Antigen-presenting cells
All of these cells are affected by HIV