Jeopardy quiz two n such Flashcards
What blood cells are responsible for carrying gases such as oxygen and carbon dioxide?
a. Monocytes
b. Erythrocytes
c. Lymphocytes
d. Leukocytes
b
Which heart chamber pumps blood into the pulmonary circulation?
a. The right atrium
b. The left atrium
c. The right ventricle
d. The left ventricle
c
Which vessels are the major site of exchange between the blood and tissues?
a. Arteries
b. Veins
c. Capillaries
d. All of the above
c
The primary pacemaker of the heart is located in the _____.
a. SA node
b. AV node
c. Purkinje fibers
d. cardiac branch of the vagus nerve
a
Which blood vessels carry oxygenated blood?
a. The pulmonary artery and aorta
b. The pulmonary veins and vena cava
c. The pulmonary veins and aorta
d. The aorta and vena cava
c
What is a major function of the upper respiratory tract?
a. To filter incoming air
b. To dry inhaled air
c. To exchange gases with the blood and lung
d. To store air in the body
a
Gas exchange takes place in the respiratory system in the _____.
a. trachea
b. alveoli
c. bronchi
d. pleura
b
The central respiratory center, which controls breathing, is located in the _____.
a. lung
b. spinal cord
c. medulla oblongata
d. cerebral cortex
c
The amount of air taken in with each breath is called the _____.
a. vital capacity
b. tidal volume
c. residual volume
d. dead space volume
b
The blood carries most of its carbon dioxide _____.
a. as a dissolved gas
b. attached to hemoglobin
c. as bicarbonate
d. as carbonic acid
c
What is the chemical messenger that is released by a neuron during synaptic transmission?
a. Neurotransmitter
b. Action potential
c. Sodium
d. Calcium
a
What part of the neuron is specialized to conduct action potentials over long distances?
a. Dendrites
b. The cell body
c. An axon
d. A nissl body
c
What maintains the electrochemical gradient across a neuron’s plasma membrane?
a. Potassium channels
b. Positively charged proteins
c. Sodium-potassium pump
d. Myelin
c
What division of the peripheral system is activated by stressful and frightening stimuli?
a. Gastrointestinal
b. Sympathetic
c. Parasympathetic
d. None of the above
b
Which part of the central nervous system governs higher cognitive functions such as memory, decision making, and emotions?
a. Cerebellum
b. Cerebrum
c. Pons
d. Medulla
b