Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

bio 150 exam 3 > blood vessels > Flashcards

blood vessels Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What does the medullary ischemic reflex result in?
Reduced circulation to the brain
Hormone secretion by the adrenal medulla when perfusion drops
Increased circulation to the brain
Increased circulation to the adrenal medulla
Ischemia of the medulla oblongata

A

Increased circulation to the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where is the vasomotor center located?
Spinal cord
Cerebral cortex
Cerebellum
Medulla oblongata
Hypothalamus

A

Medulla oblongata

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What type of shock occurs when bacterial toxins trigger vasodilation and increase capillary permeability?
Anaphylactic
Compensated
Cardiogenic
Neurogenic
Septic

A

Septic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Which vessels have the thickest tunica media?
Small veins
Capillaries
Large veins
Large arteries
Small arteries

A

large arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The lungs receive a systemic blood supply by way of which vessel(s)?
Pulmonary veins
Right pulmonary artery
Left pulmonary artery
Bronchial arteries
Lobar arteries

A

Bronchial arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

The outermost wall of an artery or vein is called the __________ and in large arteries and veins contains the __________.
tunica intima; endothelium
tunica externa; vasa vasorum
tunica intima; basement membrane
tunica media; smooth muscle
tunica externa; valves

A

tunica externa; vasa vasorum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Blood flow to the __________ remains quite stable even when mean arterial pressure (MAP) fluctuates from 60 to 140 mm Hg.
skeletal muscles
hypothalamus
stomach
adrenal gland
kidneys

A

hypothalamus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the longest vein commonly used in grafts in coronary bypass surgery?
Great saphenous vein
Femoral vein
Deep femoral vein
Common iliac vein
Inferior vena cava

A

Great saphenous vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Which of the following are not tributaries of the inferior vena cava?
The lumbar veins
The internal and external iliac veins
The inferior phrenic veins
The hepatic veins
The vertebral veins

A

The vertebral veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Hypertension is commonly considered to be a chronic resting blood pressure higher than __________.
130/60
180/90
200/90
120/75
140/90

A

140/90

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Alternative routes of blood supply are called __________.
anastomoses
thoroughfare channels
capillary beds
preferred channels
metarterioles

A

anastomoses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the most important force driving filtration at the arterial end of a capillary?
Tissue fluid colloid osmotic pressure
Blood colloid osmotic pressure
Oncotic pressure
Blood hydrostatic pressure
Interstitial hydrostatic pressure

A

Blood hydrostatic pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

A nurse takes your blood pressure and tells you the numbers are 110/70. What are your blood pressures?

	Diastolic = 110 mmHg, Systolic = 40 mmHg, Pulse Pressure = 70 mmHg, MAP = 90 mmMg
	Diastolic = 110 mmHg, Systolic = 70 mmHg, Pulse Pressure = 40 mmHg, MAP = 90 mmMg
	Diastolic = 110 mmHg, Systolic = 70 mmHg, Pulse Pressure = 40 mmHg, MAP = 107 mmMg
	Systolic = 110 mmHg, Diastolic = 70 mmHg, Pulse Pressure = 40 mmHg, MAP = 90 mmMg

Systolic = 110 mmHg, Diastolic = 70 mmHg, Pulse Pressure = 40 mmHg, MAP = 83 mmMg

A

Systolic = 110 mmHg, Diastolic = 70 mmHg, Pulse Pressure = 40 mmHg, MAP = 83 mmMg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the afferent vessels that carry blood back to the heart?
Veins
Capillaries
Arterioles
Arteries
Sinusoids

A

veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Arteries are sometimes called the __________ vessels of the cardiovascular system because they have strong-resilient tissue structure.
resistance
fenestrated
compliance
hydrodynamic
capacitance

A

resistance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A mean arterial pressure below 60 mmHg can cause which of the following?
Cerebral edema
Neurogenic shock
Syncope
Cardiogenic shock
Compensated shock

A

Syncope

17
Q

Which of the following would decrease capillary filtration?
Dietary protein deficiency
Increased permeability of lymphatic capillaries
Dehydration
Increased capillary permeability
Obstructed venous return

A

Increased capillary permeability

18
Q

How is venous return to your heart affected when you go for an easy jog?
It is unaffected.
It is increased due to increased skeletal muscular pump activity.
It is decreased due to decreased skeletal muscular pump activity.
It is increased due to decreased skeletal muscular pump activity.
It is decreased due to increased skeletal muscular pump activity.

A

It is increased due to increased skeletal muscular pump activity.

19
Q

During exercise, arterioles to the skeletal muscles __________.
dilate in response to increased muscle metabolites
constrict in response to increases in both O2 and CO2
constrict in response to increased muscle metabolites
constrict in response to increased O2 and decreased CO2
dilate in response to increased O2 and decreased CO2

A

dilate in response to increased muscle metabolites

20
Q

In people who stand for long periods, blood tends to pool in the lower limbs and this may result in varicose veins. What causes the varicose veins?
An aneurysm or weak point in an artery
An aneurysm or weak point in a vein
Failure of the venous valves
Failure of the lymphatic valves
A ruptured aneurysm in a vein

A

Failure of the venous valves

21
Q

Which of the following decreases blood pressure?
Norepinephrine
Natriuretic peptides
Angiotensin II
Antidiuretic hormone
Aldosterone

A

Antidiuretic hormone

22
Q

While out hiking, a friend of yours falls and suffers a trauma. You notice they start to go into shock. What do you do to help?
Encourage them to sit up.
Lie them down and elevate their head.
Have them lie on their side and curl up into a fetal position.
Lie them down and elevate their legs.
Hold them upright in a standing position.

A

Lie them down and elevate their legs.

23
Q

Which of the following is absent in humans?
Right and left subclavian arteries
Right and left brachiocephalic veins
Right and left common carotid arteries
Right and left brachiocephalic arteries
Right and left subclavian veins

A

Right and left brachiocephalic arteries

24
Q

Which of the following constitutes the principal venous drainage of the thoracic organs?
The branches of the celiac trunk
The azygos system
The coronary and pulmonary veins
The mesenteric circulation
The hepatic portal system

A

The azygos system

25
Q

How many pulmonary arteries empty into the right atrium of the heart?
4
8
1
2
0

A

0

26
Q

Your grandmother is experiencing temporary dizziness, blurred vision, paralysis on her left side, and mild aphasia. What do you think might be happening?
She is having a myocardial infarction.
She is having a TIA.
She has arteriosclerosis.
She has an aortic aneurism.
She has hypotension.

A

She is having a TIA.

27
Q

Which of the following routes of blood flow is correct?
Heart → conducting artery → arteriole → distributing artery → capillary → large vein → venule → medium vein → heart
Heart → distributing artery → conducting artery → arteriole → capillary → venule → large vein → medium vein → heart
Heart → large vein → medium vein → venule→ capillary → arteriole → distributing artery → conducting artery → heart
Heart → venule → medium vein → large vein → capillary → conducting artery → distributing artery → arteriole → heart
Heart → conducting artery → distributing artery → arteriole → capillary → venule → medium vein → large vein → heart

A

Heart → conducting artery → distributing artery → arteriole → capillary → venule → medium vein → large vein → heart

28
Q

Where is the greatest volume of blood found in the body?
Heart
Arteries
Veins
Pulmonary circuit
Capillaries

A

Veins

29
Q

Myocardial infarction can lead to what type of shock?
Venous pooling (vascular)
Hypovolemic
Obstructed venous return
Neurogenic
Cardiogenic

A

Cardiogenic

30
Q

Which of the following are powerful vasoconstrictors?

	Norepinephrine and antidiuretic hormone (ADH)

Norepinephrine and angiotensin II

Norepinephrine and natriuretic peptides

	Epinephrine and aldosterone
	Epinephrine and antidiuretic hormone (ADH)
A

Norepinephrine and angiotensin II

31
Q

Which of the following is associated with vasomotion?
Elastic tissue in the tunica externa
Fenestrations in the tunica externa
Smooth muscle in the tunica media
Collagen and elastic tissue in the tunica media
Endothelium in the tunica interna

A

Smooth muscle in the tunica media

32
Q

Pulmonary arteries have __________ blood pressure compared to systemic arteries.
considerably lower
considerably higher
a little higher
similar
a little lower

A

considerably lower

33
Q

What is taken up by the capillaries at their venous end?
Waste products
Glucose
Organic nutrients
Amino acids
Oxygen

A

Waste products

34
Q

Which of the following activities would fatigue your hand muscles the fastest?
Alternately squeezing a ball then relaxing
Tossing a ball from hand to hand
Throwing a ball in the air and catching it as many times as you can
Bouncing a ball on the floor as many times as you can
Squeezing a ball as hard as you can without stopping

A

Squeezing a ball as hard as you can without stopping

35
Q

Which of the following doesnot contribute to venous return?
Widespread vasodilation
Contraction of skeletal muscles of the limbs
The suction created by the atria slightly expanding during ventricular systole
The expansion of the thoracic cavity during inhalation
The difference of pressure between venules and the venae cavae

A

Widespread vasodilation

36
Q

Why does our blood pressure generally go up as we age?
Our veins get “hard” and absorb less systolic force
Our arteries get “hard” and absorb less diastolic force
Our arteries get “hard” and absorb less systolic force
Our veins get “hard” and absorb less diastolic force
Our capillaries get “hard” and less filtration occurs

A

Our arteries get “hard” and absorb less systolic force

37
Q

A bee sting can trigger a massive release of histamine, which causes __________ and a(n) __________ in arterial blood pressure.
vasodilation; increase
vasoconstriction; decrease
vasoconstriction; oscillation
vasodilation; decrease
vasoconstriction; increase

A

vasodilation; decrease

38
Q

Which of the following has the most important effect on blood velocity?
Blood osmolarity
Vessel length
Vessel radius
Hematocrit
Blood viscosity

A

Vessel radius

bio 150 exam 3 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions