Test 5 Flashcards
(53 cards)
The cardiovascular system consists of the following except…
The lungs
Exchange of gases and metabolites between the blood and tissues occurs in the ___.
Capillaries
The cells that lack a nucleus and have a relatively short life span are ___.
Erythrocytes
The reptile heart is distinguished from the amphibian heart by the presence of…
A partially divided ventricle
The blood pressure is at its lowest during…
The diastolic period
Respiration involves the movement of gases by the process of ___.
Diffusion
The most efficient lungs are found in which of the terrestrial vertebrates listed below?
Birds
The oxygen content of dry air in the atmosphere is about ___.
21%
The individual functioning unit of a kidney that consists of a system of tubules and associated small blood vessels is called a ___.
Nephron
The diffusion of water across a plasma membrane is referred to as ___.
Osmosis
The homeostatic functions of the kidneys are regulated by two hormones. One of these is antidiuretic hormone, and the other is ___.
Aldosterone
The excretory organs in the insects create an excretory fluid by secreting K+ ions, which draw water osmotically. These organs branch off anterior to the hindgut and are called what?
Malpighian tubules
Each of the following is a part of the kidney except…
The urinary bladder
The kidneys are important homeostatic organs, contributing to the stability of all of the following except ___.
Immunity
Which of the following best describes freshwater fish?
Hyperosmotic regulators
In the ___, a tuft of capillaries in the renal cortex, blood is filtered through the porous capillary walls.
Glomerulus
All of the following are reabsorbed in the neuron except …
Urea
Select the incorrectly matched organism and its nitrogenous waste product.
Insects - ammonia
Which of the following animals could drink seawater and not get dehydrated?
Herring gull
Cardiac output is the volume of blood pumped by each…
Ventricle per minute
A closed circulatory system as opposed to an open circulatory system permits..
Transport of blood which is always enclosed within vessels from front and black to a pump, the heart
The blood cells that have some kind of protective function are all of the following except..
Erythrocytes
The general term that describes the uptake of oxygen from the environment and the disposal of carbon dioxide at the body system level is…
Respiration
The large, irregularly shaped cells that kill bacteria by digesting them are called ___.
Macrophages