12 Jun Normal breathing interupted by periods without breathing
Question
Question 40
Normal breathing interupted by periods without breathing is known as
a. snoring
b. cyclic breathing rhythm
c. apnea
d. alopecia
1 points
Question 41
Paired lungs are the dominant means of respiration in:
a. Mammals
b. Reptiles
c. Birds
d. All of these choices
1 points
Question 42
The corpus luteum is responsible for producing which of the following hormones?
a. all of these
b. progesterone
c. FSH
d. LH
e. GnRH
1 points
Question 43
Filtration begins in the:
a. Proximal tubule
b. Distal tubule
c. Loop of Henle
d. Glomerulus
1 points
Question 44
The respiratory pacemakers controlling the rhythmic pattern of breathing are found in the:
a. The frontal lobe
b. The motor cortex
c. Somatosensory cortex
d. Medulla oblongata (brain stem)
1 points
Question 45
The large muscle between the thoracic cavity and the abdominal cavity that aids in breathing is the:
a. Pleura
b. Bronchus
c. Alveolus
d. Diaphragm
1 points
Question 46
All respiratory systems depend upon:
a. Active transport of gases
b. Diffusion of dissolved gases
c. Osmosis of gases
d. Expansion of gases
1 points
Question 47
Which of the following actions does NOT occur during active exhalation?
a. abdominal muscles contract
b. lung pressure increases and chest volume decreases
c. internal intercostals contract
d. external intercostals contract
1 points
Question 48
In the human male, sperm are produced by spermatogenesis occurring in
a. seminiferous tubules.
b. the epididymis.
c. the vas deferens.
d. interstitial cells.
e. the prostate.
1 points
Question 49
Actual exchanges of gases in the lungs occurs in the
a. Bronchi
b. Alveoli
c. Bronchioles
d. Tracheas
e. Glottis
1 points
Question 50
A chemical substance that behaves as a natural analgesic is
a. an amphetamine.
b. LSD.
c. epinephrine.
d. endorphin.
e. none of these.
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