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CRS 1 - The Heart and Circulatory System
Some questions based on the heart lecture we had in week 5 of CRS.
13
Veterinary Medicine
Undergraduate 1
05/24/2011

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Cards

Term
What are the four main functions of the circulatory system?
Definition
Transport, protection(carries WBC and Ig), homeostasis(pH, ions, fluid volume) and pressure.
Term
What does the circulatory system transport?
Definition
-Nutrients
-Waste
-O2 and CO2
-Heat
-Hormones
Term
The Pulmonary Circuit transports blood to the lungs. True or false?
Definition
True.
Term
There is equal volumes of blood through the pulmonary and systemic circuit. True or false?
Definition
True. If not, there would be a build up of fluid in in one circuit.
Term
Give one reason for why low pressure is needed in the pulmonary circuit.
Definition
High pressure would cause damage to the capillaries in the lungs as they are of delicate structure.
Term
Outline the pathway of the systemic circuit.
Definition
Left ventricle-Aorta-Arteries-Arterioles-Capillaries-Venules-Systemic Veins-Right Atrium
Term
The systemic circuit transports blood with low oxygen content. True or false?
Definition
False. The pulmonary circuit transports blood with low oxygen content.
Term
Outline the pathway of the pulmonary circuit.
Definition
Right Ventricle-Pulmonary Artery-Arterioles-Capillaries-Pulmonary Veins-Left Atrium
Term
Large animals have a greater metabolic rate as they lose more heart per kg body weight. True or false?
Definition
False. Small animals have a greater metabolic rate as they lose more heart per kg body weight.
Term
How much of the heart lies to the left of the median plane in the body?
Definition
60%
Term
In this picture of the heart, what are the structures labelled 1 and 2?

[image]
Definition
1. Coronary groove
2. Subsinuosal groove
Term
What is the fossa ovalis?
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.
Term
What is the trabecula septomarginalis(septomarginal trabecula)?
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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