Question 1

Trace a drop of blood from where it picks up oxygen in the lung to when it returns to the lung,naming the vessels and heart chambers and valves it passes in correct order.

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Question 2

An alternative name for the mouth is the ________ _________.

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Question 3

The rhythm and depth of breathing normally are controlled by the level of ________ _______ in the blood.

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Question 4

The name of the instrument that we use to measure blood pressure is the ______________.

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Question 5

The external openings to the tracheal systems of arthropods are called ________________.

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Question 6

The lower affinity of hemoglobin for oxygen in the presence of increased carbon dioxide is called the _______ ________.

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Question 7

The volume of blood forced from either ventricle each minute is known as _________ _________.

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Question 8

The blood vessel that delivers oxygen and nutrients to the heart is the ________ ________.

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Question 9

Outline the formation of red blood cells and white blood cells.Why have red blood cells (erythrocytes)lost their nucleus?

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Question 10

The heartbeat originates in specialized muscle tissue called the _______ _______ in the sinoatrial node

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Question 11

The contraction of the heart is known as ____________,and the relaxation is diastole.

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Question 12

Outline the internal fluid components within a vertebrate organism.

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Question 13

The flap that keeps food and water from going into the larynx is the _______________.

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Question 14

In very small organisms,or those with a large surface area relative to mass,substantial exchange of respiratory gases can take place by ____________ directly between the organism and its environment.

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Question 15

Briefly discuss the functions of the many inorganic and organic substances in solution within body fluids.

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Question 16

Describe the components of vertebrate plasma and vertebrate "formed" elements.

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Question 17

The mammalian lung is filled with millions of small air sacs called _______________.

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Question 18

Why is the catalytic sequence leading to blood clotting so complex? Wouldn't it make evolutionary and metabolic sense to have a more immediate and much shorter biochemical sequence leading to blood clotting?

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Question 19

Oxygen passes from the air sacs of the lungs into the blood capillaries by a process called __________________ along partial pressure gradients.

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Question 20

What are the physiological roles of fibrinogen,fibrin,prothrombin,and thromboplastin? Where,why,and when are these compounds made?

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Quiz 31: Homeostasis: Internal Fluids and Respiration