Download Circulatory & Respiratory

Circulatory & Respiratory
1. The thick, muscular vessels that transport blood away from
the heart are the
(1) atria
(3) veins
(2) arteries
(4) ventricles
2. A pulse can be detected most easily in
(1) an artery
(3) a capillary
(2) a vein
(4) a lacteal
3. The thin-walled vessels of the circulatory system where
most oxygen and carbon dioxide are exchanged are
(1) alveoli
(3) capillaries
(2) arteries
(4) veins
4. Blood normally flows from the capillaries directly into
(1) small arteries
(3) lymph vessels
(2) small veins
(4) heart atria
5. The diagram below illustrates the transport of oxygen and
carbon dioxide.
In which organisms does this type of transport occur?
(1) hydra and ameba
(2) human and frog
(3) grasshopper and chicken
(4) paramecium and earthworm
6. Which type of vessel normally contains valves that prevent
the backward flow of materials?
(1) artery
(3) capillary
(2) arteriole
(4) vein
7. Veins are blood vessels that
(1) deliver blood to the cells of the body
(2) contain striated muscle
(3) carry blood toward the heart
(4) readily exchange materials between the blood and
body cells
8. In the human heart, the muscular structure of the ventricles
enables them to
(1) pump blood a greater distance than atria can
(2) carry only oxygenated blood
(3) carry only deoxygenated blood
(4) pump blood directly into the atria
9. For blood to pass through the heart from the left atrium to
the left ventricle, it must first pass through
(1) an artery
(3) a vein
(2) a valve
(4) a capillary
10. The human heart is separated into left and right sides. This
type of structure provides for the
(1) separation of oxygenated blood from deoxygenated
blood
(2) prevention of blood clots in the ventricles
(3) pumping of blood directly into the atria from the
ventricles
(4) circulation of blood in an open circulatory system
11. A type of "heart attack" in which a narrowing of the
coronary artery causes an inadequate supply of oxygen to
reach the heart muscle is known as
(1) anemia
(3) angina pectoris
(2) leukemia
(4) cerebral palsy
12. A blood abnormality that results from uncontrolled
production of abnormal white blood cells by the bone
marrow is known as
(1) leukemia
(3) thrombosis
(2) anemia
(4) emphysema
13. Which statement concerning blood pressure is not correct?
(1) The maintenance of an increased blood pressure can
lead to a weakening of heart muscle.
(2) Blood pressure is partially the result of the contraction
of the left ventricle.
(3) As the intake of saturated fats in the diet increases, the
possibility that blood pressure will become elevated
also increases.
(4) Blood pressure is normally higher during diastole than
during systole.
14. Which structure is lined with a ciliated mucous membrane
that warms, moistens, and filters air?
(1) pharynx
(3) epiglottis
(2) alveolus
(4) nasal cavity
15. Which statement best describes the human respiratory
system?
(1) It is composed of a network of moist passageways that
permit air to flow from the external environment to the
lungs.
(2) Each cell of the human body is in direct contact with
the external environment, and gas exchange occurs by
diffusion.
(3) The external body surface is kept moist to allow for
gas exchange.
(4) Gases diffuse across membranes on both the external
and internal surfaces of the body.
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Circulatory & Respiratory
16. Which structure in humans is lined with ciliated mucous
membrane, is supported by cartilaginous rings, and
functions as a passageway for air?
(1) esophagus
(3) pharynx
(2) alveolus
(4) trachea
17. What will most likely happen when food is in the trachea?
(1) The food will interfere with the passage of air to the
alveoli.
(2) The food will undergo emulsification and
deamination.
(3) The food will be moved down to the stomach by
peristalsis.
(4) The food will be completely digested as a result of
enzyme action.
18. Which diagram best illustrates the function of an alveolus?
(2)
(1)
(3)
19. Which sequence most correctly represents the network of
passageways which normally permits air to flow from the
external environment to the human lungs?
(1) nasal cavity, bronchioles, trachea, pharynx, bronchi
(2) nasal cavity, pharynx, trachea, bronchi, bronchioles
(3) nasal cavity, trachea, pharynx, bronchi, bronchioles
(4) nasal cavity, bronchi, bronchioles, pharynx, trachea
20. Humans breathe more rapidly during exercise than before
it because during exercise the blood contains
(1) an increased level of oxygen
(2) a decreased number of red blood cells
(3) an increased level of carbon dioxide
(4) a decreased amount of hemoglobin
21. Which disease is linked to smoking and results in a
reduction in the number and elasticity of alveoli?
(1) emphysema
(3) bronchitis
(2) asthma
(4) meningitis
22. Which set of symptoms would most likely lead to a
diagnosis of asthma?
(1) enlargement and degeneration of the alveoli
(2) constriction of the bronchial tubes and wheezing
(3) inflammation and swelling of the epiglottis
(4) constriction of the nasal cavity and watery eyes
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