QUESTIONS AND ANSWERS
Which of the following is not a function of the mucus-lined nasal passages? -
ANSWERSCooling exhaled air
Which of the following has an effect on the pH of blood? - ANSWERSCarbon dioxide
What causes air to move into the lungs during inspiration? - ANSWERSPressure
gradient between atomosphere and alveoli
Another word for breathing is ventilation. - ANSWERSTrue
Oxygen is carried in the blood in the form of bicarbonate ions and is bound to
hemoglobin. - ANSWERSFalse
The layer of serous membrane that is firmly attached to the surface of a lung is called
the __________. - ANSWERSvisceral pleura
The __________ is the tube that conveys urine outside the body. - ANSWERSurethra
Which of the following chemicals might athletes abuse because of its potential ability to
improve performance by increasing red blood cell production? -
ANSWERSErythropoietin (EPO)
The hormone ADH promotes water reabsorption through the wall(s) of the __________.
- ANSWERSdistal tubule and collecting duct
The efferent arteriole supplies blood to the capillaries of the glomerulus. -
ANSWERSFalse
The kidneys play an important role in the regulation of red blood cell production. -
ANSWERSTrue
The tuft of capillaries located between the afferent and efferent arterioles is the
__________. - ANSWERSglomerulus
What is edema? - ANSWERSAbnormal accumulation of extracellular fluid
What is meant by the phrase acid-base balance? - ANSWERSMaintenance of the
correct amount of hydrogen ion in the blood
, Which of the following will cause the respiratory center to increase the breathing rate? -
ANSWERSDecrease in plasma pH
In a healthy body, the volume of water remains relatively stable at all times. -
ANSWERSTrue
Factors that alter water balance will also alter electrolyte balance. - ANSWERSTrue
Water produced as a byproduct of the oxidation of nutrients is called __________ water.
- ANSWERSmetabolic
Identify the correct sequence for the steps of meiosis I. - ANSWERSProphase I →
metaphase I → anaphase I → telophase I
Ovulation is triggered by a surge of _________ from the anterior pituitary gland. -
ANSWERSLH
What structure does the sperm enter upon exiting the ductus deferens? -
ANSWERSEjaculatory duct
Chromosomes align down the center of a cell undergoing meiosis in metaphase. -
ANSWERSTrue
The secretions of the prostate gland neutralize the acid in semen. - ANSWERSTrue
Following ovulation, the remaining follicular cells in the ovary enlarge to form an
endocrine structure called the __________. - ANSWERScorpus luteum
What is the function of the placenta? - ANSWERSAllows oxygen and nutrients to diffuse
from maternal blood to the embryo.
The fetus is protected from certain infections, to which the mother is immune, by
__________. - ANSWERSantibodies from the mother's immune system
Implantation usually begins at about the end of the first ________ of development -
ANSWERSweek
The fetal stage of development begins at the end of the eighth week. - ANSWERSTrue
Aging-related changes include shrinking of the prostate in men and enlargement of the
breasts in women. - ANSWERSFalse
The structure that surrounds the cell membrane of the secondary oocyte is the
__________. - ANSWERSzona pellucida