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Bio 446 L Cardiovascular System Review Questions and Correct Answers
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What is a distended external jugular vein? it means an enlarged vein, where the blood doesn't flow readily. What happens if the blood cant flow readily? There's a blockage, so the blood will pump backwards what are the structures involved in the cardiovascular system? heart, blood vessels, and ly...

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  • August 17, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • bio 446 l cardiovascular system review questions a
  • what is a distended external jugular vein it mea
  • what happens if the blood cant flow readily ther

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Bio 446 L Cardiovascular System Review
Questions and Correct Answers
What is a distended external jugular vein? ✅it means an enlarged vein, where the
blood doesn't flow readily.

What happens if the blood cant flow readily? ✅There's a blockage, so the blood will
pump backwards

what are the structures involved in the cardiovascular system? ✅heart, blood vessels,
and lymphatic vessels

The cardiovascular system carries blood and lymphatic vessels to and from ? ✅tissues
of the body

blood vessels ✅tubelike structures that carry blood throughout the body

lymphatic vessels ✅large vessels with valves, which collect and carry lymph to lymph
nodes

pulmonary circulation ✅Right side of the heart: Circulation of blood between the heart
and the lungs

The right side of the heart pumps blood through pulmonary vessels, through the lungs
for oxygenation, and back to the left side of the heart

systemic circulation ✅Left side of the heart: circulation that supplies blood to all the
body except to the lungs

The left side of the heart pumps blood through vessels supplying either the head and
arms or the lower body, and back to the right side of the heart

what is the circuit leading up to the heart steps? ✅artery ---> arteriole---> Capillary --->
Venule ---> vein

postal system ✅A circulatory system in addition to the pulmonary and systemic
circulations, composed of two venous portal systems and one arterial portal system

- has 2 capillary beds associated with it.

What are the two venous portal systems? ✅1. Hepatic portal system (portal vein)
2. Hypophyseal portal system

, hepatic portal system ✅the veins that carry blood from the digestive organs to the liver

hypophyseal portal system ✅blood travels from the hypothalamus to the anterior
pituitary

Venous ✅pertaining to a vein

arterial portal system ✅A vascular arrangement where arterial blood passes through
two capillary beds in series.

efferent arteriole ✅carries blood away from the glomerulus (kidney)

Arteries ✅carry blood away from the heart (oxygenated)

Veins ✅carry blood to the heart (carbon- dioxidated)
- Have no real pressure needs the valves help
- At any time, most of the blood in the circulatory system is in the veins.

azygous vein ✅- Drains right side of thoracic
- Receives venous drainage of body wall.
- Empties into superior vena cava
- Potential anastomosis between inferior and superior vena cava.

What is cardiac tamponade? ✅compression of the heart by an accumulation of fluid in
the pericardial sac

- A potentially fatal situation in which the pericardial sac is filled with blood or fluid and
restricts the pumping/expansion of the heartDecreased arterial and pulse pressure
leads to elevated venous pressure (because blood can't get into the heart because the
pericardial sac is being filled with fluid)Jugular venous distension and shock also
present

venous pressure elevated means ✅blood is not getting into the heart because the
venous pressure is backed up

What is the position of the heart within the thoracic cavity? ✅Located between the
sternal angle and the 5th intercostal space (space between the ribs) behind the
sternumProjects anteriorly and to the left,

where two-thirds of the heart is located left of the midline

The right atrium of the heart receives 3 blood vessels? ✅superior, inferior vena cava,
and coronary sinus that drains the blood from the heart

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