BIOS 255 Midterm Review

BIOS 255 Midterm Review

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BIOS 255 Midterm Review

• Pulmonary Circulation

Answer: flow of blood from the heart to the lungs and back to the heart

• Systemic Circulation

Answer: flow of oxygenated blood to the whole body

• Location of the Heart

Answer: In the mediastinum, between the lungs, with its apex pointing to the LEFT of midline

• Pericardium

Answer: Double-layered membrane surrounding the heart which anchors and protects it.

• Fibrous Pericardium

Answer: Most superficial layer of the pericardium, composed of connective tissue

• Serous Pericardium

Answer: Membrane consisting of a visceral and parietal layer

• Parietal Pericardium

Answer: Lines inner surface of fibrous pericardium

• Visceral Pericardium

Answer: Lines external surface of the heart. AKA the Epicardium

• Epicardium

Answer: Outermost layer of the heart, AKA visceral pericardium

• Myocardium

Answer: Muscle layer of the heart

• Endocardium

Answer: lines innermost surfaces of the four chambers

• Atria

Answer: Two superior chambers of the heart

• Ventricles

Answer: Two inferior chambers of the heart

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