question

Hormones are normally secreted via ducts into the bloodstream.

answer

False

question

Hormones serve as intracellular messengers.

answer

False

question

Testosterone is a gonadotropin.

answer

False

question

Many effects of growth hormone are mediated by insulin-like growth factors (igfs) secreted by the pancreas.

answer

False

question

Peptide hormones are synthesized by cytoplasmic ribosomes as active enzymes.

answer

False

question

The exhaustion stage of the general adaptation syndrome (stress response) sets in only if protein reserves are depleted.

answer

False

question

Eicosanoids are derived from steroids.

answer

False

question

Addison disease is a consequence of a tumor of the adrenal medulla.

answer

False

question

Hemostasis is the production of formed elements of blood.

answer

False

question

Blood viscosity stems mainly from electrolytes and monomers dissolved in plasma.

answer

False

question

Lymphoid hepopoiesis occurs mainly in the bone marrow.

answer

False

question

A person develops antibodies A only after he is exposed to antigen A and anti B antibodies only after he is exposed to antigen B.

answer

False

question

RH incompatibility between a sensitized RH + woman and RH - fetus can cause hemoytic disease of the newborn.

answer

False

question

Circulating WBC spend most of their lives in the bloodstream.

answer

False

question

Coagulation starts with a vascular spasm and ends with the formation of platelet plug.

answer

False

question

The maximum amount of air the lungs can contain is known as inspiratory capacity.

answer

False

question

Respiratory arrest is an irreversible condition.

answer

False

question

Breathing is controlled solely by the medulla oblongata and pons.

answer

False

question

The rate of oxygen diffusion is affected by the pressure gradient of carbon dioxide.

answer

False

question

According to the Bohr effect, a low level of oxyhemoglobin enables the blood to transport more CO2.

answer

False

question

Hemoglobin releases the same amount of oxygen to all the tissues. regardless of variations in their metabolic rate.

answer

False

question

The uterus is a thick muscular chamber inferior to the urinary bladder.

answer

False

question

Inhibin modulates the secretion of LH.

answer

False

question

The ovarian cycle typically lasts about 28 days, with day 1 considered to be the first day after ovulation.

answer

False

question

Most primary oocytes undergo atresia during climacteric.

answer

False

question

Progesterone stimulates uterine contractions.

answer

False

question

Prolactin is secreted during pregnancy to stimulate milk synthesis so that milk will be available by the time the infant is born.

answer

False

question

Women with morning sickness tend to prefer spicy and pungent foods.

answer

False

question

Large veins, medium veins, and venules have valves to prevent the backflow of blood.

answer

False

question

Blood flow is pulsatile in arteries and veins, but it is steady in capillaries.

answer

False

question

Decompensated shock is normally corrected by the body's homeostatic mechanisms.

answer

False

question

Lung tissue receives nourishment and waste removal from the pulmonary circuit.

answer

False

question

The three primary branches of the celiac trunk are the common hepatic, left gastric, and splenic veins.

answer

False

question

The brachial vein is the most common site of blood pressure measurement with the sphygmomanometer.

answer

False

question

Most tissue fluid is reabsorbed by the lymphatic system

answer

False

question

Humoral immunity takes care of intracellular viruses, whereas cellular immunity takes care of extracellular viruses.

answer

False

question

Clonal selection of T cells happens in the thymus.

answer

False

question

Interferon's are secreted in response to bacterial infections.

answer

False

question

Endurance athletes commonly have a resting heart rate as low as 40 bpm, and a stroke volume as low as 50 mL/beat.

answer

False

question

Lymph originates in blood capillaries that pick up tissue fluid.

answer

False

question

Ventricular pressure increases the fastest during ventricular filling.

answer

False

question

The ventricles are almost empty at the end of ventricular diastole.

answer

False

question

Cardiac muscle can only use glucose as a source of organic fuel.

answer

False

question

The pulmonary circuit is supplied by both the right and the left sides of the heart.

answer

False

question

The systemic circuit contains oxygen-rich blood only.

answer

False

question

Blood in the heart chambers provides most of the myocardium's oxygen and nutrient needs.

answer

False

question

Desmosomes form channels that allow each cardiocyte to electrically stimulate its neighbors.

answer

False

question

Both the thymus and the pineal gland shrink after childhood.

answer

True

question

Thyroid hormone has a calorigenic effect.

answer

True

question

Epinephrine is said to have a glucose-sparing effect.

answer

True

question

Cholesterol is essential for the synthesis of steroid hormones.

answer

True

question

Regardless of the cause of stress, the body reacts in a fairly consistent way to different stressors.

answer

True

question

Prostaglandins are considered paracrines.

answer

True

question

Oxygen and carbon dioxide bind to different parts of hemoglobin

answer

True

question

The liver stores excess iron in ferritin

answer

True

question

The most important component of the cytoplasm of rc are hemoglobin and carbonic anhydrase

answer

True

question

Incompatibility of one person blood with another results from the action of plasma antibodies against the rbc antigens

answer

True

question

Lymphocytes secrete antibobies , coordinate action of their immune cells and serve in immune memory

answer

True

question

Monocytes differentiate into large phagocytic cells

answer

True

question

Clotting deficiency can result from thrombocytopenia or hemophilia

answer

True

question

AFTER a wound is sealed ,tissue repair is followed by fibrinolysis

answer

True

question

Erythrocytes do not carry out aerobic respiration; thus, they do not consume any of the oxygen they are transporting.

answer

True

question

The pleurae and pleural fluid help prevent the spread of pulmonary infection to the pericardium.

answer

True

question

Gas transport is the process of carrying gases from the alveoli to the systemic tissues and vice versa

answer

True

question

In the female fetus, the absence of testosterone results in the development of the external genitalia into clitoris, labia minora, and labia majora.

answer

True

question

The vagina has no glands but it is moistened by mucus from glands in the cervical canal.

answer

True

question

Although two breast cancer genes are known, most cases are nonhereditary

answer

True

question

The number of ovarian follicles declines with age, leading to a reduction of estrogen levels

answer

True

question

The proliferative phase of the uterus is driven by estrogen from the ovaries.

answer

True

question

In the excitement phase, the uterus rises from its forward-tilted (anteverted) position.

answer

True

question

Unlike men, women lack a refractory period and may experience successive orgasms

answer

True

question

Human chorionic gonadotropin (HCG) stimulates the corpus luteum to grow and secrete estrogen and progesterone

answer

True

question

Oxytocin stimulates contraction of myoepithelial cell of the mammary acini.

answer

True

question

Blood flow through a capillary bed is regulated by precapillary sphincters.

answer

True

question

Blood filtered through the hepatic sinusoids exits the liver via the hepatic veins

answer

True

question

Increased capillary filtration, reduced reabsorption, or obstruction of lymphatic drainage can lead to edema

answer

True

question

The pulmonary circuit is the only route in which arteries carry less oxygen than veins.

answer

True

question

The greatest outflow from the dural venous sinuses is via the internal jugular vein.

answer

True

question

Arterial flow to the lower limb comes from the external iliac artery.

answer

True

question

The radial artery is lateral to the ulnar artery

answer

True

question

Generalized vasomotion can raise or lower blood pressure throughout the body.

answer

True

question

The fibrous skeleton of the heart serves as electrical insulation between the atria and the ventricles.

answer

True

question

Parasympathetic stimulation reduces heart rate.

answer

True

question

If the SA node is damaged, nodal rhythm is sufficient to sustain life.

answer

True

question

Repolarization of a ventricular cardiocyte takes longer than repolarization of a typical neuron.

answer

True

question

Atrial hypertrophy would probably cause an enlarged P wave on an electrocardiogram.

answer

True

question

Papillary muscles prevent the AV valves from prolapsing (bulging) excessively into the atria when the ventricles contract.

answer

True

question

Hypercapnia and acidosis have positive chronotropic effects.

answer

True

question

Red bone marrow is the point of origin of all immune cells of the lymphatic system.

answer

True

question

Mucous membranes prevent most pathogens from entering the body because of the stickiness of the mucus and the presence of lysozymes.

answer

True

question

Pus is made of dead neutrophils, macrophages, and other tissue debris from a damaged tissue.

answer

True

question

Interleukins are chemical signals by which immune cells communicate with each other.

answer

True

question

Helper T cells respond only to epitopes attached to MHC proteins.

answer

True

question

Cytotoxic T cells respond only to antigens bound to MHC-I proteins.

answer

True

question

Memory B cells are found circulating mainly in the lymph.

answer

True

question

Some antibodies against foreign antigens can react to similar self-antigens causing an autoimmune disease.

answer

True

A&P II Final True & False – Flashcards

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