anatomy

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The normal resting stroke volume is _______

70ml

Which blood type contains the A antigen only

A

Which of the following increases heart rate?

Epinephrine

What two groups of steroid hormones are made by female ovaries?

Estrogens and progesterone

What multinucleate cell gives rise to thousands of anucleate fragments known as platelets?

Megakaryocyte

Which vessels return oxygen-rich blood to the left atrium of the heart

Pulmonary veins

What is the primary effect of prolactin

Stimulate and maintain milk production after childbirth

What can we infer from the following: 110/70 mm Hg?

Systolic pressure measurement over diastolic pressure measurement

Which of these hormones regulate calcium levels in the body

calcitonin and parathyroid hormone (PTH)

Being lipid soluble, steroids can do all the following except ________

catalyze a reaction that produces cyclic AMP (cAMP)

What is the final step of hemostasis in which the formation of a blood clot is accomplished?

coagulation

Select the statement that best describes the function of tropic hormones

Tropic hormones stimulate other endocrine glands to secrete hormones

The "fight-or-flight" response triggers the release of ________

adrenaline/epinephrine

Releasing and inhibiting hormones produced by the hypothalamus influence the activities ofthe ________

anterior pituitary gland

The path of blood flow within the systemic vascular system is _____

arteries, arterioles, capillary beds, venules, veins

the atrioventricular valves are closed when ________.

atrial pressure is less than ventricular pressure

The two major groups of white blood cells are ______

granulocytes and agranulocytes

Cardiac output is the product of which two variables

heart rate and stroke volume

What is not contained in the plasma of blood

hemoglobin

Rising blood levels of aldosterone cause the kidney tubules to ________

increase absorption of sodium ions

Alcohol inhibits the secretion of antidiuretic hormone (ADH). What impact will this have onthe body?

increased thirst and dehydration

the friction blood encounters as it flows through the vessels is called ________

peripheral resistance

In the second-messenger system, what serves as the first messenger?

the hormone

The body's major metabolic hormone, which is actually two iodine-containing hormones, iscalled ________.

thyroid hormone

When the right ventricle contracts, which specific valve closes to prevent blood from flowinginto the right atrium?

tricuspid valve

The pulmonary semilunar valve is normally open during ____

ventricular systole

Which of these anterior pituitary hormones regulates the endocrine activity of the cortexregion of the adrenal gland?

Adrenocorticotropic hormone (ACTH)

Which of the following does not correctly characterize blood

Blood is cooler than body temperature

Which blood type(s) can a person with blood type O receive?

Blood type O

What component of a red blood cell binds and transports oxygen

Hemoglobin

What stimulates the release of calcitonin?

Increasing level of blood calcium ions

Which of the following vessels has the lowest blood pressure?

Venae cavae

What structure divides the left ventricle from the right ventricle?

interventricular septum

Erythrocytes ________.

lack a nucleus and most organelles

Pulmonary circulation involves blood flow to and from the heart and the ______

lungs

the pineal gland produces _______

melatonin

Rising levels of parathyroid hormone (PTH) will inhibit its further hormone release. This typeof control mechanism is best described as

negative feedback mechanism

The most numerous of the white blood cells are the

neutrophils

While cross matching an unknown blood type, agglutination was observed with neither theanti-A nor the anti-B sera. You evaluate these results to indicate that the unknown blood contains________

no antigens

Veins ________.

often have valves to prevent the backflow of blood


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