Exam 4 Flashcards
(26 cards)
The sensation of thirst results from
Select one:
a. stimulation of baroreceptors.
b. a decrease in the osmolality of the extracellular fluid.
c. hypertension (increased blood pressure).
d. an increase in the plasma volume.
e. stimulation of osmoreceptor cells in the hypothalamus.
e. stimulation of osmoreceptor cells in the hypothalamus.
Which of the following is NOT a buffer system of the body?
Select one:
a. Phosphate buffer system
b. Protein buffer system
c. NaCl buffer system
d. Hemoglobin buffer
e. Bicarbonate buffer system
c. NaCl buffer system
Adequate image absorption from the GI tract depends on
Select one:
a. serum image levels.
b. the osmolality of the extracellular fluid.
c. adequate amounts of vitamin C.
d. serum calcitonin levels.
e. adequate amounts of vitamin D.
e. adequate amounts of vitamin D.
Calcium’s roles in the body include
Select one:
a. action potentials in heart muscle.
b. blood clotting.
c. bone health.
d. muscle contraction.
e. All of the choices are correct
e. All of the choices are correct
Renin is released by the_________.
Select one:
a. spleen
b. pancreas
c. kidney
d. lungs
e. liver
c. kidney
Which of the following is NOT a principle sensor for thirst regulation?
Select one:
a. Osmoreceptors in the hypothalamus
b. Mouth mucosa
c. Juxtaglomerular apparatus
d. Arterial baroreceptors
b. Mouth mucosa
Which of the following does not belong with the others?
Select one:
a. image concentration increases
b. Acidosis
c. pH increases
d. Carbonic acid levels increase
e. pH decreases
c. pH increases
Angiotensin II increases blood volume by stimulating
Select one:
a. water movement into the cells.
b. renal excretion of image.
c. thirst.
d. vasodilatation.
e. ADH production.
c. thirst.
Fertilization can only occur
Select one:
a. when there is no menstrual flow.
b. after oxytocin is released from the hypothalamus.
c. when a sperm cell penetrates a secondary oocyte.
d. if orgasms occur in both the male and female.
e. on day 14 of the cycle.
c. when a sperm cell penetrates a secondary oocyte.
Assume a couple has just completed intercourse, and sperm cells have been deposited in the woman’s reproductive tract. Trace the pathway of the sperm cells through the female reproductive tract to the point where fertilization will most likely occur.
(1) Cervix
(2) Uterine tube
(3) Cavity of uterus
(4) Vagina
Select one:
a. 1, 2, 3, 4
b. 4, 3, 2, 1
c. 1, 3, 2, 4
d. 4, 3, 1, 2
e. 4, 1, 3, 2
e. 4, 1, 3, 2
Sexual drive in females
Select one:
a. can be affected by psychological factors.
b. is influenced by androgens that affect the hypothalamus.
c. All of the choices are correct.
d. is dependent on hormones.
c. All of the choices are correct.
Given the following glands, choose the arrangement that represents the order in which the glands release their secretions to form semen.
(1) Prostate gland
(2) Bulbourethral glands
(3) Seminal vesicles
Select one:
a. 2, 1, 3
b. 2, 3, 2
c. 3, 1, 2
d. 1, 2, 3
e. 3, 2, 1
c. 3, 1, 2
The major factor controlling the onset of puberty in males is
Select one:
a. the hypothalamus becoming less sensitive to the inhibitory effects of androgens.
b. the production of testosterone by the testes.
c. a decrease in GnRH levels.
d. None of the choices are correct.
e. the ability of the pituitary to secrete FSH and LH.
a. the hypothalamus becoming less sensitive to the inhibitory effects of androgens.
Follicles in the ovary that are never ovulated
Select one:
a. proliferate.
b. undergo atresia.
c. become the corpus albicans.
d. undergo and complete meiosis in the ovary.
e. form secondary follicles.
b. undergo atresia.
Fertilization occurs when the
Select one:
a. sperm cell head enters the zygote.
b. oocyte ruptures from the ovary.
c. sperm cells enter the vagina.
d. oocyte is implanted in the uterus.
e. nuclei of the secondary oocyte and the sperm cell unite.
e. nuclei of the secondary oocyte and the sperm cell unite.
A primary oocyte with a single layer of granulosa cells is most appropriately called a_________.
Select one:
a. Graafian follicle
b. mature follicle
c. corpus luteum
d. primordial follicle
e. secondary follicle
d. primordial follicle
A patient was evaluated with the following results noted: lack of response to pain stimuli, inability to maintain breathing without medical intervention, isoelectric EEG. These results indicate_________.
Select one:
a. brain death
b. respiratory distress syndrome
c. minor damage to the cerebral cortex
d. trisomy 18
a. brain death
The type of fetal monitoring that uses sound waves to visualize the developing fetus is a/an_________.
Select one:
a. fetoscopy
b. chorionic villi sampling
c. auscultation
d. amniocentesis
e. ultrasound
e. ultrasound
If a female who is a carrier for a genetic disorder has a child with a male who is also a carrier for the same disorder, the probability that their offspring will have the disorder is_________.
Select one:
a. 0%
b. 100%
c. 50%
d. 25%
d. 25%
A patent ductus arteriosus means that the_________ did not close.
Select one:
a. intraatrial septum
b. connection between the inferior vena cava and the abdominal aorta
c. connection between the pulmonary trunk and the aorta
d. intraventricular septum
e. umbilical arteries and veins
c. connection between the pulmonary trunk and the aorta
Type AB of the ABO blood group is an example of_________.
Select one:
a. polymorphism
b. recessiveness
c. complete dominance
d. codominance
e. incomplete dominance
d. codominance
Regarding fertilization, which of the following events happens first?
Select one:
a. The acrosomal reaction
b. The slow block to polyspermy
c. The cortical reaction
d. The fast block to polyspermy
a. The acrosomal reaction
Colostrum differs from milk in that it contains_________.
Select one:
a. no antibodies
b. more protein
c. little fat
d. more fat
e. more lactose
c. little fat
The specific location of a gene on a chromosome is its_________.
Select one:
a. locus
b. homolog
c. allele
d. genotype
e. phenotype
a. locus
