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Vasculature > Week 2 - Lesson 2 (Part 3) > Flashcards

Week 2 - Lesson 2 (Part 3) Flashcards

1
Q

Systole

A

Contration

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2
Q

Diastole

A

Relaxation

- refilling with blood

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3
Q

What happens in ventricular systole?

A

The heart contracts and it causes ejection of blood into the aorta and pulmonary trunk

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4
Q

How long does ventricular systole last for?

A

0.3 - 0.4 sec

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5
Q

How much blood leaves the ventricles with each contraction?

A

80-100cc

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6
Q

What is the peak of the arterial blood pressure in humans?

A

120mmHg

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7
Q

When does arterial systole occur?

A

Toward the end of the ventricular diastole

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8
Q

How is arterial systole completed?

A

By the filling of the ventricles

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9
Q

How do the ventricles contract?

A

Simultaneously

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10
Q

When does ventricular diastole occur?

A

It is the period during when both ventricles are relaxing

- filling, no contraction

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11
Q

When does atrial diastole occur?

A

It is the period during which the atria are relaxing

- filling

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12
Q

Are both atria in diastole at the same time?

A

Yes

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13
Q

What are 5 great vessels?

A
  1. Superior vena cava
  2. Inferior vena cava
  3. Pulmonary arteries
  4. Pulmonary veins
  5. Aorta
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14
Q

What do the great vessels do?

A

They drain blood into the atria and take blood away from the ventricles

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15
Q

Where does the aorta leave the heart?

A

From the left ventricle

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16
Q

What 3 segments is the aorta divided into?

A
  1. Ascending aorta
  2. Aortic arch
  3. Descending aorta
17
Q

What is the first major branch of the ascending aorta?

A

The left and right coronary arteries

18
Q

What do the left and right coronary arteries do?

A

They carry oxygenated blood to the heart muscle

19
Q

What 3 major branches come off of the aortic arch?

A
  1. Brachiocephalic artery
  2. Left common carotid artery
  3. Left subclavian artery
20
Q

What is another word for the brachiocephalic artery?

A

Innominate artery

21
Q

What does the innominate artery bifurcate into? (2)

A
  1. Right common carotid artery

2. Right subclavian artery

22
Q

What does the thoracic aorta supply? (6)

A
  1. Pericardium
  2. Mediastinum
  3. Diaphragm
  4. Esophagus
  5. Bronchi
  6. Intercostal muscles
23
Q

What does the abdominal aorta supply?

A

The abdominal viscera with oxygenated blood

24
Q

What are 8 examples of abdominal viscera?

A
  1. Celiac axis
  2. SMA
    - colon
  3. IMA
    - intestines
  4. Renal arteries
  5. Gonadal arteries
  6. Adrenal arteries
  7. Lumbar arteries
  8. Common iliac arteries
25
Q

What does the IVC do?

A

Carries deoxygenated blood from the lower half of the body into the right atrium of the heart

26
Q

What are the major tributaries of the IVC? (6)

A
  1. Hepatic veins
  2. Phrenic veins
  3. Renal and suprarenal veins
  4. Gonadal veins
  5. Lumbar veins
  6. Common iliac veins
27
Q

What kind of diameter does the SVC have?

A

A larger one

- short in length

28
Q

What does the SVC do?

A

Carries deoxygenated blood from the upper half of the body to the right atrium

29
Q

What is the SVC formed by?

A

The right and left brachiocephalic veins

- innominate veins

30
Q

What do the brachiocephalic veins drain? (3)

A
  1. The upper limbs
  2. Head
  3. Neck
31
Q

What does the azygos vein drain into?

A

The SVC

- just prior to right atrium

32
Q

Which brachiocephalic vein is longer?

A

The left one

33
Q

What does the azygos vein do?

A

Carries deoxygenated blood posterior chest and abdominal walls to the SVC
- unilateral

34
Q

Where does the azygos ascend?

A

In the thorax to the right side of the vertebral column

35
Q

What connects the SVC and the IVC?

A

The azygos vein

36
Q

What does the azygos vein serve as?

A

A great collateral pathway for blood flow if the SVC or IVC is blocked

Vasculature (45 decks)

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