Final Exam: Ch 20 Flashcards
Arteries are sometimes called the ______ vesssels of the cardiovascular system because they have strong-resilient tissue structure
Resistance
Which vessels have the overall thickest tunica media made of smooth muscle
Large arteries
Where is the greatest volume of blood found in the body
Veins
Which of the following is not a possible circulatory route from the heart
- Heart
- Arteries
- Capillary bed
- Vein
- Capillary bed
- Arteries
- Heart
What is the mean arterial pressure for a person with 110 and 65 mm Hg as systolic and diastolic pressure respectively
80 mm Hg
Which of the following has the most important effect on blood viscosity
Vessel radius
What is the best way to decrease blood pressure
Healthy weight
Where is the vasomotor center located
Medulla oblongata
Hypertension is commonly considered to be a chronic resting blood pressure higher than
130/80
What is taken up by the capillaries at their venous end
Waste products
Which of the following would decrease capillary filtration
Dehydration
What type of shock occurs when bacterial toxins trigger vasodilation and increase capillary permeability
Septic
A bee sting can trigger a massive release of histamine which causes _______ and _____ in arterial blood pressure
Vasodilation
Decrease
What is the most important force in venous flow
Blood pressure generated by the heart
Blood flow to the ____ remains quite stable even when mean arterial pressure (MAP) fluctuates from 60 to 140 mm Hg
Brain
How many pulmonary arteries empty into the right atrium of the heart
0
The lungs receive blood coming from the heart through which blood vessels
Pulmonary arteries which are blue
Which of the following is absent in humans
Right and left brachiocephalic arteries
Which vessel supplies 80% of the cerebrum
Internal carotid artery
What are the major branches of the abdominal aorta from superior to inferior
- Celiac trunk
- Superior mesenteric artery
- Renal arteries
- Gonadal arteries
- Inferior mesenteric artery
- Common iliac arteries
Which of the following is not a vein of the lower limb
Anterior interosseous vein
Which of the following is a portal system
- Heart
- Artery
- Arteriole
- Capillary bed
- Arteriole
- Capillary bed
- Venule
- Vein
- Heart
A nurse takes your blood pressure and tells you the numbers are 110/70. What are your blood pressures?
Systolic= 110 mm Hg
Diastolic= 70 mm Hg
Pulse pressure= 40 mm Hg
MAP= 83 mm Hg
How is venous return to your heart affected when you go for an easy jog
It is increased due to increased skeletal muscular pump activity
During exercise arterioles to the skeletal muscles
Dilate in response to increased muscle metabolities
What are the blood vessel that carry blood back to the heart
Veins
What is one possible path of blood from the heart to the left hallux and back to the heart
- Aorta
- Left common iliac artery
- Left external iliac artery
- Left femoral artery
- Left popliteal artery
- Left anterior tibial artery
- Dorsal pedal artery
- Dorsal venous arch
- Left great saphenous vein
- Left femoral vein
- Left external iliac vein
- Left common iliac vein
- Inferior vena cava
Which structure is highlighted
Cephalic vein
Which structure is highlighted
Left renal artery
Which type of blood vessel is shown here
Continuous capillary
Which type of blood vessel is shown here
Sinusoid
Which type of circulatory pathway is labeled 4 in this diagram
Arterial anastomosis
Which type of circulatory pathway is labeled 3 in this diagram
Venous anastomosis
Which type of circulatory pathway is labeled 2 in this diagram
Arteriovenous anastomosis
Which type of circulatory pathway is labeled 1 in this diagram
Portal system
Name the branch of the aortic arch labeled 1
Right common carotid artery
Name the branch of the aortic arch labeled 2
Right subclavian artery
Name the branch of the aortic arch labeled 3
Brachiocephalic trunk
Name the branch of the aortic arch labeled 4
Left common carotid artery
Name the branch of the aortic arch labeled 5
Left subclavian artery
