Term
| What are the four main functions of the circulatory system? |
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Definition
| Transport, protection(carries WBC and Ig), homeostasis(pH, ions, fluid volume) and pressure. |
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Term
| What does the circulatory system transport? |
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Definition
-Nutrients
-Waste
-O2 and CO2
-Heat
-Hormones |
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Term
| The Pulmonary Circuit transports blood to the lungs. True or false? |
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Definition
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Term
| There is equal volumes of blood through the pulmonary and systemic circuit. True or false? |
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Definition
| True. If not, there would be a build up of fluid in in one circuit. |
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Term
| Give one reason for why low pressure is needed in the pulmonary circuit. |
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Definition
| High pressure would cause damage to the capillaries in the lungs as they are of delicate structure. |
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Term
| Outline the pathway of the systemic circuit. |
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Definition
| Left ventricle-Aorta-Arteries-Arterioles-Capillaries-Venules-Systemic Veins-Right Atrium |
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Term
| The systemic circuit transports blood with low oxygen content. True or false? |
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Definition
| False. The pulmonary circuit transports blood with low oxygen content. |
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Term
| Outline the pathway of the pulmonary circuit. |
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Definition
| Right Ventricle-Pulmonary Artery-Arterioles-Capillaries-Pulmonary Veins-Left Atrium |
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Term
| Large animals have a greater metabolic rate as they lose more heart per kg body weight. True or false? |
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Definition
| False. Small animals have a greater metabolic rate as they lose more heart per kg body weight. |
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Term
| How much of the heart lies to the left of the median plane in the body? |
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Definition
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Term
In this picture of the heart, what are the structures labelled 1 and 2?
[image] |
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Definition
1. Coronary groove
2. Subsinuosal groove |
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Term
| What is the fossa ovalis? |
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Definition
| The fossa ovalis is the remnant of the foramen ovale, which in the fetal heart allows blood to enter the left atrium from the right atrium. |
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Term
| What is the trabecula septomarginalis(septomarginal trabecula)? |
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Definition
| It is a muscular band of heart tissue found in the right ventricle. It is well-marked in sheep and some other animals, and frequently extends from the base of the anterior papillary muscle to the ventricular septum. |
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