Unit 3 Test

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The sinoatrial (SA) node is indicated by ________.

Label A

The atrioventricular (AV) node is indicated by ________.

Label B

The bundle branches are indicated by ________.

Label D

The gland that produces insulin and glucagon is indicated by ________.

Label H

The pancreas is indicated by ________

Label H

The female glands that are stimulated by follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are indicated by ________.

Label I

The gland that produces testosterone is indicated by ________.

Label J

Growth hormone

anterior pituitary

Luteinizing hormone (LH)

anterior pituitary

Prolactin (PRL)

anterior pituitary

A substance that stimulates the immune system to release antibodies is the ________.

antigen

What is largest artery in the body?

aorta

Which type of granulocyte releases histamine at sites of inflammation?

basophils

Which vein returns blood to the superior vena cava?

brachiocephalic vein

The two hormones released by the thyroid gland are ________.

calcitonin and thyroid hormone

Microcirculation occurs in these vessels

capillaries

Venules drain these tiny beds of vessels

capillaries

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

epinephrine

Oxytocin

hypothalamus

When blood glucose levels are too high, the beta cells of the pancreas release ________ to decrease levels.

insulin

What organs are served by the renal arteries and veins?

kidneys

The four pulmonary veins return oxygenated blood to this chamber

left atrium

The interatrial septum separates the right atrium from this chamber

left atrium

Heart chamber with the thickest wall

left ventricle

Inferior discharging chamber on the left side of the heart

left ventricle

The bicuspid (mitral) valve is situated between the left atrium and this chamber

left ventricle

Veins ________.

often have valves to prevent the backflow of blood

Parathyroid hormone (PTH)

parathyroid glands

The tricuspid valve is located between the ________.

right atrium and right ventricle

The gland that produces melatonin is indicated by ________.

Label A

The neutrophil is indicated by ________.

Label A

The pineal gland is indicated by ________.

Label A

The monocyte is indicated by ________.

Label B

The atrioventricular bundle (bundle of His) is represented by ________.

Label C

The gland that hangs from a stalk from the hypothalamus is indicated by ________.

Label C

The gland that is primarily responsible for regulating metabolism is indicated by ________.

Label D

The lymphocyte is indicated by ________.

Label D

The Purkinje fibers are indicated by ________.

Label E

The gland that produces thymosin is indicated by ________.

Label F

The thymus is indicated by ________.

Label F

The glands that produce cortisol and epinephrine are indicated by ________.

Label G

What organ receives blood from the hepatic portal vein?

liver

Pulmonary circulation involves blood flow to and from the heart and the ________.

lungs

Which hormone appears to play an important role in establishing the body's sleep-wake cycle?

melatonin

What is the muscular layer of the heart wall?

myocardium

The external carotid artery serves the skin and muscles of the head and ________.

neck

Glucocorticoids

adrenal cortex

Epinephrine

adrenal medulla

Norepinephrine

adrenal medulla

Male sex hormones produced by the adrenal cortex are called ________.

androgens

The aorta is classified as one of these vessels

arteries

These vessels carry blood away from the heart

arteries

These vessels have thicker walls and a heavier tunica media

arteries

The path of blood flow within the systemic vascular system is ________.

arteries, arterioles, capillary beds, venules, veins

Glucagon

pancreas

Insulin

pancreas

Which vein returns blood to the femoral vein?

popliteal vein

If you carry the Rh antigen, you are referred to as Rh ________.

positive

Heart chamber that contains the sinoatrial node

right atrium

The coronary sinus empties blood from cardiac circulation into this chamber

right atrium

The sinoatrial (SA) node is located in the ________.

right atrium

Heart chamber that pumps blood to the pulmonary trunk

right ventricle

Which of the following is often called the pacemaker of the heart?

sinoatrial (SA) node

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart?

sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle (bundle of His), right and left bundle branches, Purkinje fibers

Due to low pressure in these vessels, skeletal muscle activity aids the return of blood by milking it along in these vessels toward the heart

veins

Some of these larger vessels have valves to prevent backflow

veins

Superior and inferior vena cava are classified as these types of vessels

veins

These vessels have thinner walls and transport oxygen-poor blood

veins

These vessels return blood to the heart

veins

Which of the following vessels has the lowest blood pressure?

venae cavae

The eosinophil is indicated by ________.

Label C

Cortisone

adrenal cortex

Adrenocorticotropic hormone (ACTH)

anterior pituitary

Follicle-stimulating hormone (FSH)

anterior pituitary

Thyrotropic hormone (TH) or thyroid-stimulating hormone (TSH)

anterior pituitary

What part of a red blood cell binds and transports oxygen?

hemoglobin

The process by which bleeding is stopped is called ________.

hemostasis

Releasing and inhibiting hormones

hypothalamus

The pineal gland produces ________.

melatonin

Which type of vessel is constructed only from tunica intima?

capillaries

Place these leukocytes in order from the most common to the least common:1) basophil2) eosinophil3) lymphocyte4) monocyte5) neutrophil

5) neutrophil 3) lymphocyte 4) monocyte 2) eosinophil 1) basophil

Normal blood pH falls in a range between ________ to ________.

7.35; 7.45

The blood type that possesses the A antigen only

Blood type A

The blood type that can receive blood types B and AB

Blood type AB

The blood type that does NOT form anti-A or anti-B antibodies

Blood type AB

The blood type that forms both anti-A and anti-B antibodies

Blood type O

The blood type that has no antigens

Blood type O

The most common blood type

Blood type O

Thymosin

thymus gland

Calcitonin

thyroid gland

Thyroxine (T4)

thyroid gland

The body's major metabolic hormone is called:

thyroid hormone

The correct sequence of layers of a typical blood vessel, from superficial to deep, are ________.

tunica externa, tunica media, tunica intima

Which one of the following represents the proper sequence of hemostasis?

vascular spasm, platelet plug formation, coagulation

Which blood type is referred to as the "universal recipient" since it can receive blood types A, B, AB, and O?

AB

Which formed element is the most abundant in blood?

erythrocyte

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

estrogens and progesterone

Some people purchase melatonin as an over-the-counter medication. For what specific purpose?

sleep aid

Destroys worn-out blood cells and returns some of their break-down products to the liver

spleen

Aldosterone

adrenal cortex


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