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49 Cards in this Set
- Front
- Back
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Heart and Pericardium components: (4)
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1. Diaphragm
2. Intercostals 3.Abdominals 4. Pericardium |
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What does the Diaphragm look like?
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it is dome shaped with a central tendon in the middle.
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the shape of the Diaphragm in relaxation:
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dome shaped
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Regarding the thoracic cavity, in contraction, the diaphragm is ________ to... and to...
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Flat...
to increase thoracic cavity volume to decrease thoracic cavity pressure |
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In regards to the abdominal cavity, the Disphragm contaction is flat because it...
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decreases abdominal cavity volume and increases abdominal cavity pressure.
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Diaphragm INN:
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C3, 4, 5 Phrenic nn.
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Intercostals play role in creating...
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...a ridged wall for negative pressure inside thorax.
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Contracting the abdominals can force the _______ _______ against the ______ _______ to force air out.
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abdominal viscera
abdominal diaphragm |
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Pericardium is:
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a Serous Membrance around the heart. (similar to lungs)
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The Lungs only have 2 Layers but the Heart has how many? Name them.
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3 layers:
Epicardium - outer protective layer of the heart. Myocardium - muscular middle layer wall of the heart. Endocardium - inner layer of the heart that is continuous with the inner lining of blood vessels. |
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The 1st level pericardium includes: (2)
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1. Visceral Pericardium
2. Parietal Pericardium |
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The 2nd level pericardium includes the __________ cavity.
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Pericardial
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The Pericardial Cavity is between:
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the Visceral and Parietal layers
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The 3rd layer pericardium includes: (1)
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Fibrous Pericardium
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The Fibrous Pericardium is:
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a very tough connective tissue.
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The Fibrous pericardium's job is to:
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anchor the heart to the sternum anteriorly and the diaphragm inferiorly.
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Veins are:
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any vessel that takes blood TO the heart.
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Arteries are:
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any vessel that takes blood AWAY from heart.
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the Subclavian vv. (left and right) return blood from...
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the upper limbs.
aka. Internal Thoracic aa. in thorax outer wall. |
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Internal Jugular v.
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returns blood from head
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where is the brachiocephalic vein?
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where subclavian vv. joins with Internal Jugular v.
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Superior Vena Cava (left and right) empties into:
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the right atrium
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Right Atrium
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receives blood from rest of body
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the Inferior Vena Cava returns blood from...
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...the lower limbs and abdomen
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what is the Auricle?
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pouch inside the L and R atrium
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Right Venticle:
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bloog passes through the Rights Atrioventricular (AV) Valve entering the RIght Atrium
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Right Atrioventricular has 3 cusps also known as:
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Tricuspid
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Papillary mm contracts to:
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keep the blood from flowing back into the Right Atrium from the Right Ventricle
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ChoradeTendineae ("heart strings") are the:
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connection between the Papillary mm and the Valves
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Pulmonary Trunk exits the:
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Right Ventricle
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The Pulmonary trunk looks like:
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valves in veins of our limbs
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Pulmonary Semilunar Valve is:
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the gateway into the Pulmonary Trunk
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There are how many Pulmonry Semilunar Valves?
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3 of these
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Pulmonary Arteries go to:
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L and R lungs for Oxygenation
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Pulmonary Veins empty into:
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the Left Atrium
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The Pulmonary Veins contains:
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oxygen rich blood which goes back to the heart from lungs
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the Left Atrium receives...
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...receives oxygen rich blood from the Pulmonary Veins
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Left Ventricle
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has thick wall (unlike the right ventricle) because blood must be pumped to the rest of the body.
side note: this is also why the heart sits mostly on the left side. |
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Left Atrioventricular (AV) Valve is also known as:
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Bicuspus Valve
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The Left Atrioventricular AV Valve had how many cusps?
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2 valve cusps. This is the only difference from the the Right AV Valve.
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Left AV Valve - Papillary mm. and ______ Tendineae can fail in old people and blood can flow backwards.
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Chordae
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Aorta has how many components?
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3
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The Aorta components are:(3)
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1. Ascending
2. Arch (has sub parts) 3. Decending |
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The Arch (of the Aorta) consist of 3 parts.
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1. The Brachiocephalic Trunk (17)
2. L Common Carotid (20) 3. L Subclavian (21) |
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The Brachiocephalic Trunk has 2 parts:
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1. R Common Carotid (18) - Goes to head
2. R Subclavian (19) goes to R Upper limb |
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The R Common Carotid goes to
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the head
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The R Subclavian goes to
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the R Upper Limb
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Aortic Semilunar Valve is identical to:
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Pulmonart Semilunar Valve
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The Aortic Semilunar Valve takes blood to:
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the Aorta
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