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Bio 139 Test 5 > Heart > Flashcards

Heart Flashcards

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Biology 101 flashcards
1
Q

How many chamber of the heart

A

4 2- atria and 2 ventricles

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2
Q

Arteries

A

Move blood away from heart

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3
Q

Veins

A

Blood toward the heart

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4
Q

2 Major circulations

A

1) Systemic and 2) Pulmonary

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5
Q

How many chamber does a frog have

A

3

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6
Q

Red vs Blue

A

Red has O2

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7
Q

Where is the Heart

A

In the mediastinum more on the LEFT side

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8
Q

Apex of the heart

A

the Point bottom

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9
Q

2 Layers or the Pericardium

A

1) Fibrous pericardium 2) Serous pericardium ( parietal pericardium and visceral pericardium

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10
Q

Where is the pericardium Cavity between?

A

The Parietal and visceral pericardium

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11
Q

Walls of the Heart (layers)

A

1) Epicardium (Visceral pericardium) (outer) 2) Myocardium(cardiac muscle) 3) endocardium(innermost)(areolar connective tissue)

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12
Q

Cardiac muscle

A

1) 1-2 nuclei 2) branched fibers 3) Mitochondria 3) striated 4) intercalated discs

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13
Q

Heart valves

A

Atrioventricular and Semilunar

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14
Q

Atrioventricular valves

A

1) Tricuspid 2) Bicuspid(mitral)

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15
Q

Semilunar valves

A

1) Pulmonary semilunar 2) Aortic Semilunar

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16
Q

Fibrous Skeleton

A

1) Dense; irreg Ct between atria and ventricles 2) Anchors Valves 3) Prevents electrical activity from going atria to ventricles

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17
Q

Right Atrium

A

1) Receives blood from systemic circulation 2) Interatrial septum(midline) 3) Fossa ovalis 4 pectinate muscles 4) auricle 4) blood flows through TRICUSPID to get to Right Ventricle

18
Q

Right Ventricle

A

1) Receives blood from Right Atrium 2) Interventricular septum 3) Trabeculae carnae 4) Papillary Muscles (3) 5) Chordae tenonea 6) Blood flows through right pulmonary SEMILUNAR valve to get to pulmonary trunk(lungs)

19
Q

Left Atrium

A

1) Receives blood from pulmonary VEINS 2) Pectinate muscles 3) Auricle 4) Blood flows through BICUSPID (mitral valve to get to LEFT ventricle6) NO fossa orals

20
Q

LEFT ventricle

A

1) Receives blood from left atrium 2) THICK wall 3) Trabeculae carnae 4) Papillary Muscles 2 5 Chordae tendineae

21
Q

When the heart contracts

A

Systole

22
Q

When hear relaxes

A

Diastole

23
Q

During Diastole how much blood fills ventricles

A

70%

24
Q

What tops off ventricles

A

Atria Contracting

25
Q

Cardiac conduction system is and how many parts

A

Autorphythmicity and 5 components

26
Q

5 Components in order of Cardiac conduction system

A

1) Sinoatrial (SA) node 2) Atrioventricular AV node 3) bundles of his 4) Bundle of branches 5) Purkinje fibers

27
Q

EKG

A

Electrocardiogram p-wave -> QRS complex then T wave

28
Q

The QRS complex

A

Depolarization of the ventricles.

29
Q

The P wave

A

The P wave depolarizes the cells of the atria.

30
Q

T Wave

A

Last The T wave is ventricular repolarization.

31
Q

Coronary Circulation

A

Right coronary artery and left coronary artery

32
Q

Right coronary artery

A

Marginal and posterior intraventricular

33
Q

Left coronary artery

A

1) Left anterior descending 2)Circumflex

34
Q

Coronary Veins

A

1) great cardiac FRONT Vein 2) Middle cardiac(back) vein 3) Small cardica vein(small)

35
Q

Coronary sinus

A

It dumps blood into right atrium from all three veins

36
Q

Schema

A

Lack of blood Flow

37
Q

ST Elevation EGK

A

Heart attack

38
Q

ventricular fibrillation

A

Use a defibrillation( heart attack waves on EKG)

39
Q

How is the heart inverted?

A

By both sympathetic and parasympathetic(rest)

40
Q

Resting heart rate

A

60-80 bc parasympathica

41
Q

SA Node beats?

A

90-100

42
Q

Max Heart Rate

A

220-Age

Bio 139 Test 5 (6 decks)

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