Anatomy & Physiology Blood & Vessels

Which of the following is the blood vessel that distributes blood to organs?
a. arteries
b. capillaries
c. venules
d. arterioles
e. veins

a. arteries

This is a blood vessel that conveys blood from the tissues back to the heart.
a. artery
b. arteriole
c. aorta
d. vein
e. capillary

d. vein

Which artery wall is responsible for vasoconstriction?
a. tunica interna
b. tunica media
c. tunica externa
d. tunica albuginea
e. tunica fascia

b. tunica media

This layer of the artery is composed mainly of elastic and collagen fibers
s. tunica interna
b. tunica media
c. tunica externa
d. tunica albuginea
e. tunica fascia

c. tunica externa

When an artery or arteriole is damaged, its smooth muscle contracts producing
a. a tear in the artery
b. a branch off the artery called an arteriole
c. a vascular spasm
d. tetanus
e. constriction of the outer four layers

c. a vascular spasm

Elastic arteries function as a
a. vasodilator
b. conduit to the tissues of the trunk only
c. barrier to microcirculation
d. pressure reservoir
e. vasoconstrictors only

d. pressure reservoir

These vessels make up the largest blood reservoir
a. arteries and arterioles
arterioles and capillaries
c. venules and capillaries
d. veins and venules
e. aorta and veins

d. veins and venules

This vessel plays a key role in regulating blood flow into capillaries
a. arteries
b. arterioles
c. venules
d. veins
e. aorta

b. arterioles

Which of the below is NOT found in arteries but is found in veins?
a. tunica externa
b. tunica media
c. tunica interna
d. valves

d. valves

Capillaries are also known as
a. exchange vessels
b. vasoconstrictors
c. vasodilators
d. pressure reservoirs
e. distributing vessels

a. exchange vessels

Which of the below is the most important capillary exchange method?
a. diffusion
b. transcytosis
c. bulk flow
d. active transport
e. primary transport

a. diffusion

These control the flow of blood through a capillary bed
a. thoroughfare channel
b. precapillary sphincter
c. postcapillary sphincter
d. venules
e. veins

b. precapillary sphincter

Continuous capillaries can be found in the following tissues.
a. skeletal muscle
b. smooth muscle
c. connective tissue
d. lungs
e. all of the above

e. all of the above

The alternate route of blood flow to a body part through an anastomosis is called
a. anastome
b. blood reservoir
c. detour blood
d. collateral circulation
e. microcirculation

d. collateral circulation

The largest factor that promotes reabsorption of fluids, into blood, from the interstitial fluids is
a. tissue hydrostatic pressure
b. tissue osmotic pressure
c. blood osmotic pressure
d. blood hydrostatic pressure
e. colloid pressure

c. blood osmotic pressure

The pressure driven movement of fluids and solutes from blood into interstitial fluid is called
a reabsorption
b. filtration
c. bulk flow
d. hydrostatic pressure
e. colloid pressure

b. filtration

This is the volume of blood that flows through any tissue in a given time period
a. microcirculation
b. circulation
c. blood flow
d. blood pressure
e. resistance

c. blood flow

Blood flow depends on which of the following criteria.
a. blood pressure
b. systemic vascular resistance
c. blood type
d. blood pressure and systemic vascular pressure
e. blood pressure and heart rate

d. blood pressure and systemic vascular pressure

Which of the below would NOT increase blood pressure.
a. increased blood volume
b. increased sympathetic stimulation
c. increased heart rate
d. increased stroke volume
e. decreased cardiac output

e. decreased cardiac output

Which of the below factors do NOT increase systemic vascular resistance?
a. decreased vessel lumen diameter
b. increased blood viscosity
c. decreased vela length
d. increased vasodilation
e. increased blood cell count

c. decreased vessel length

This depends mostly on the ratio of RBC to plasma volume.
a. total blood volume
b. blood viscosity
c. systemic resistance
d. blood vessel length
e. size of vessel lumen

b. blood viscosity

circulation time
a. varies with diet
b. is set by the hypothalamus
c. in a resting person is normally 1 minute
d. depends on hormones from the liver
e. will stop a heart if it is lower than 20 seconds

c. in a resting person is normally 1 minute

The cardiovascular center is located
a. in the thorax
b. in the cerebral cortex
c. in the cerebellum
d. in the medulla oblongata
e. in the hypothalamus

d. in the medulla oblongata

Which of the below factors is most important in forcing blood flow through veins?
a. heart rate
b. stroke volume
c. muscular activity
d. blood velocity
e. valve opening

c. muscular activity

Which of the below would be the response of the body as a result of decreased frequency of action potentials arising from the baroreceptors?
a. increased blood pressure
b. increased parasympathetic stimulation
c. decreased heart rate
d. decreased stoke vo

a. increased blood pressure

Which of the following hormones would NOT cause an increase in blood pressure?
a. atrial natriuretic peptide
b. antidiuretic hormone
c. aldosterone
d. angiotensin
e. increased norepinephrine

a. atrial natriuretic peptide

Chemoreceptors in blood vessels measuring high levels of blood carbon dioxide would NOT cause which of the following
a. increased heart rate
b. increased vasoconstriction of blood vessels
c. increased blood pressure
d. decreased respiratory rate
e. decrea

d. decreased respiratory rate

The myogenic response make smooth muscle
a. contract more forcefully when stretched
b. contract more forcefully when relaxed
c. stay in an isotonic state
d. less elastic
e. more elastic

a. contract more forcefully when stretched

Where can pulse not be felt?
a. arteries
b. veins
c. venules
d. capillaries
e. arterioles

d. capillaries

What do these chemicals have in common: potassium, hydrogen ions, lactic acid, nitric oxide and adenosine?
a. they are all potent vasoconstrictors
b. they are all potent vasodilators
c. they are used to begin smooth muscle contractions
d. they regulate th

b. they are all potent vasodilators

This pressure provides information about the condition of the cardiovascular system such as atherosclerosis and patent ductus arterioles.
a. diastolic blood pressure
b. systolic blood pressure
c. pulse pressure
d. venule pressure
e. capillary pressure

c. pulse pressure

This type of shock is due to decreased blood volume.
a. hypovolemic
b. cardiogenic
c. vascular
d. obstructive
e. neurogenic

a. hypovolemic

What do the following have in common: superficial temporal artery, brachial artery and dorsal artery of the foot?
a. they are all areas where you can not hear Korotkoff sounds
b. they are all only found on the left side of the body
c. they are all pulse p

c. they are all pulse points

Which of the following is not a response to hypovolemic shock?
a. activation of the RAA system
b. secretion of ADH
c. activation of the sympathetic division of the ANS
d. release of vasoconstrictors
e. release of vasodilators

d. release of vasoconstrictors

All the veins of the systemic circulation drain into the
a. superior vena cava
b. inferior vena cava
c. coronary sinus
d. superior and inferior vena cava
e. superior and inferior vena cava and coronary sinus

e. superior and inferior vena cava and coronary sinus

The pulmonary trunk divides into
a. right pulmonary artery
b. left pulmonary artery
c. pulmonary veins
d. right and left pulmonary arteries
e. right pulmonary vein and artery

d. right and left pulmonary arteries

In fetal circulation what is the opening between the right and left atria called?
a. ductus venosus
b. umbilicus
c. umbilical vein
d. foramen ovale
e. placenta

d. foramen ovale

Which of the below vessels is a pulse point at the wrist?
a. radial artery
b. subclavian artery
c. axillary artery
d. cephalic artery
e. palmar artery

a. radial artery

Which of the below vessels supplies blood to the intestines?
a. radial artery
b. subclavian artery
c. mesenteric artery
d. coronary artery
e. popliteal artery

c. Mesenteric artery

Which of the below vessels supplies blood to the kidney?
a. Hepatic artery
b. Renal artery
c. mesenteric artery
d. coronary artery
e. popliteal artery

b. renal artery

Which of the below vessels drains blood from the lower leg?
a. jugular vein
b. superior vena cava
c.tibial vein
d. coronary vein
e. iliac vein

c. tibial vein

which of the below vessels drains blood from the head and neck?
a. carotid vein
b. inferior vena cava
c. axillary vein
d. femoral vein
e. jugular vein

e. jugular vein

Which of the below vessels drains blood from the lower body to the right atrium?
a. inferior vena cava
b. superior vena cava
c. tibial vein
d. coronary vein
e. iliac vein

a. inferior vena cava

After birth when the umbilical cord is cut what do the umbilical arteries fill with?
a. placental fluid
b. blood
c. connective tissue
d. smooth muscle
e. capillary beds

c. connective tissue

Describe the five main types of blood vessels as you explain the flow of blood between the heart and the tissues.

Blood is carried away from the heart in arteries. All arteries have an outer tunica extreme (mostly elastic and collagen fibers), an inner tunica media (mostly smooth muscle and elastic fibers) and a lining called the tunica internal (endothelial tissue).

In a freak accident, an overheated and dehydrated roofer falls off the roof and onto a mirror that is being brought into a construction site. The mirror breaks and cuts several blood vessels, including the femoral artery. What will happen to the roofer's

If the roofer overheated, he probably had already lost a significant volume of body fluid through perspiration as his body tried to cool off. That loss would account for the dehydration. Loss of fluid without significant loss of solutes causes the blood c

Identify and discuss the factors that contribute to systemic vascular resistance.

1) Blood viscosity ratio of formed elements and proteins to plasma; increasing viscosity via increasing formed elements or decreasing plasma volume increases resistance
2) Total blood vela length directly proportional to resistance; increasing length of c

A patient has the misfortune to have both diabetes insidious and Addison's disease. How will those conditions affect the patient's ability to regulate blood pressure?

Diabetes insidious associated with deficient secretion of ADH (antidiuretic hormone or vasopressin). Addison's disease is associated with inadequate secretion of aldosterone and cortisol from the adrenal cortex. ADH and aldosterone influence blood pressur

Describe the route of an RBC traveling from the heart to the left elbow and back to the heart.

From the heart, the RBC will enter the ascending aorta and then the aortic arch. The RBC will exit the aorta through the left subclavian artery, continue on that route through the axillary artery and into the brachial artery. At the elbow, the blood cell