CVS 3

Question 1

parasympathetic control of HR by what nerve?

Answer 1

vagus nerve

Question 2

sympathetic control of Heart contraction by what spinal cord segments?

Answer 2

T1-T4

rooted to heart and coronary arteries via

cardipulmonary nerve plexus = situated at the bifurcation of the trachea

Question 3

autonomic motor fibres that supply the heart travel from?

Answer 3

1. parasympathetic - vagus nerve
2. sympathetic - T1-T4 via cardiopulmonary nerve plexus

Question 4

Sensory and pain fibres from the hear wall travel to what spina cord level?

Answer 4

T1-T4

sympathetic nerves

note (the somatic - sensory nerves in T1-4 supply determatomes on inner aspect of arm - so pain from heart = can be interpreted as coming from dermatomes instead of heart (e.g/ left upper arm) upper arm dermatomes because these are strong impulses than autonomic ones

Question 5

modified cells in SA node are known as

Answer 5

Purkinje cells (nodal cells)

Question 6

outline conducting system

Answer 6

1. sinoatrial node
2. atrioventricular node
3. Bundle of His
4. Left and right bundle branches
5. Purkinje fibres

Question 7

sympathetic innervation of the heart

Answer 7

T1-T4 spinal segment

SA node/AV node

but also

myocardium muscle/cardiac muscle - can increase contractility

Question 8

label

Answer 8

1. SA node
2. Inter-atrial pathways (bachmans bundle)
3. Internodal pathways
4. AV node
5. Bundle of HIS
6. RIGHT bundle branch
7. LEFT bundle branch
8. Purkinje fibres

Question 9

label

Answer 9

1. SA node
2. Inter-atrial pathways (bachmans bundle)
3. Internodal pathways
4. AV node
5. Bundle of HIS
6. RIGHT bundle branch
7. LEFT bundle branch
8. Purkinje fibres

Question 10

Why is angina pain referred much more often to the left upper arm than the right?

Answer 10

heart is situated more to the left side of the chest and so the brain will interpret the pain impulses as coming from the left arm more frequently than it does the right arm

Question 11

Where is the SA node found

Answer 11

Right atrium

near opening of SVC

Question 12

where is the AV node found

Answer 12

near the coronary sinus on the inferior part of

-> interatrial septum.

Question 13

c) The atrioventricular bundles (of His) - lie within each side of the ???

Answer 13

interventricular septum

Question 14

label 1

Answer 14

RV

Question 15

2

Answer 15

Apex

Question 16

3

Answer 16

RA

Question 17

4

Answer 17

LV

Question 18

5

Answer 18

oesophagus

Question 19

6

Answer 19

LA

Question 20

7

Answer 20

aorta

Question 21

8

Answer 21

azygos vein

Question 22

1

Answer 22

Apex

Question 23

2.

Answer 23

RV

Question 24

3

Answer 24

RA

Question 25

4

Answer 25

Ascending aorta

Question 26

5

Answer 26

LA

Question 27

6

Answer 27

Descending aorta

Question 28

7

Answer 28

LV

Question 29

8

Answer 29

oesphagus

Question 30

1

Answer 30

trachea

Question 31

2

Answer 31

aortic knuckle/knob

Question 32

3

Answer 32

RA

Question 33

4

Answer 33

LV

Question 34

5

Answer 34

APEX

Question 35

Answer 35

circumflex artery

Question 36

the left marginal artery of the heart is a branch of the

Answer 36

circumflex artery

Question 37

the left marginal artery of the heart is a branch of the

Answer 37

circumflex artery

Question 38

Answer 38

Pectinate muscles

Question 39

Answer 39

Moderator band

Question 40

Answer 40

External iliac artery

Question 41

What is Coarctation of the Aorta?

Answer 41

Coarctation of the aorta is a birth defect in which a part of the aorta is narrower than usual.

Question 42

Answer 42

left

Question 43

Answer 43

right ventricle

Question 44

Answer 44

superior vena cava

Question 45

Answer 45

5th left intercostal space

Question 46

Answer 46

Sinus venosus - coronary sinus developed from sinus venosus

Question 47

Answer 47

middle cardiac vein

Question 48

Answer 48

trabeculae carneae

Question 49

Answer 49

right ventricle

Question 50

Answer 50

left brachiocephalic vein

Question 51

Answer 51

left **BUNDLE BRANCH** of bundle of HIS

Question 52

innervation of the SA node and AV node

Answer 52

sympathetic - T1-T4 parasympathetic - vagus nerves

Question 53

where is the atrioventricular (bundles of HIS) situated in the heart?

Answer 53

interventricular septum

Question 54

Distal to the inguinal ligament, the external iliac artery becomes the

Answer 54

common femoral artery

Question 55

Bifurcation of the abdominal aorta into common iliac arteries

Answer 55

L4

Question 56

main branches of the ascending aorta

Answer 56

left and right coronary arteries

Question 57

main branches of descending aorta

Answer 57

* posterior intercostal arteries * * oesophageal arteries * * bronchial arteries * * mediastinal branches

Question 58

◦ Common iliac arteries – arise at vertebral level

Answer 58

L4 and lie in the iliac fosse

Question 59

◦ External iliac arteries – arise from the common iliac arteries at vertebral level

Answer 59

L5

Question 60

◦ Internal iliac arteries – arise from the common iliac arteries at vertebral level

Answer 60

L5

Question 61

internal thoracic arteries arise from?

Answer 61

the subclavian arteries

Question 62

◦ Arteries have branches, while veins have

Answer 62

tributaries.

Question 63

branches of veins are called

Answer 63

tributaries.

Question 64

the great veins

Answer 64

SVC and IVC

Question 65

the great arteries

Answer 65

aorta and pulmonary trunk

Question 66

The SVC drains blood from the

Answer 66

head, neck and upper limbs

Question 67

the IVC drains blood from

Answer 67

the abdominal, pelvic cavities and lower limbs

Question 68

what do the anterior intercostal veins drain into

Answer 68

the internal thoracic vein

Question 69

what drains the posterior intercostal veins

Answer 69

azygos venous system -> SVC drains blood from posterior Intercostal veins into the SVC

Question 69

what drains the posterior intercostal veins

Answer 69

azygos venous system -> SVC drains blood from posterior Intercostal veins into the SVC

Question 70

the hemiazygos veins drain into?

Answer 70

the azygos vein by crossing from left to right at T8/T9

Question 71

what vertebrae level does the hemiazygos vein cross over to drain into the azygos vein

Answer 71

T8/T9

Question 72

the azygos vein drains into

Answer 72

SVC

Question 73

which chest wall veins are drained by the ayzgos and hemiazygos veins

Answer 73

posterior intercostal veins

Question 74

when does the subclavian artery become the the axillary artery

Answer 74

lateral boarder of the first rib

Question 75

the brachial artery bifurcates into?

Answer 75

radial and ulnar arteries at the cubital fossa

Question 76

depression at the front of the elbow

Answer 76

cubital fossa (where brachial artery bifurcates into the ulnar and radilal arteries)

Question 77

Answer 77

Dorsalis pedis artery

Question 78

Answer 78

External iliac artery

Question 79

Answer 79

right common illiac artery

Question 80

Answer 80

Popliteal artery

Question 81

Answer 81

Internal iliac artery

Question 82

Answer 82

Posterior tibial artery

Question 83

Answer 83

Anterior tibial artery

Question 84

Answer 84

femoral artery