Which statement about platelets is incorrect?
a. They are produced in the bone marrow.
b. They form the meshwork of a blood clot in which other cellular elements become entrapped.
c. They form a plug when they adhere to the exposed collagen of a damaged vessel.
d. When aggregated, they release thromboxane A2 that promotes secretion of ADP.
e. When aggregated, they release ADP, which causes the surface of nearby circulating platelets to become sticky so that they also adhere to the enlarging platelet plug.
B
You might also like to view...
The glomerular capsule is composed of two layers of squamous epithelial cells.
Answer the following statement true (T) or false (F)
Three main classes of diuretic hormones have been identified in insects. Which of the following is NOT one of those classes?
A) CRF-related diuretic hormones B) Insect myokinins C) Corticotrophin-releasing factors D) Cardioacceleratory peptides
In the equation CO2 + H2O H2CO3 H++ HCO3 - which of these is an acid?
A) H2O B) H+ C) H2CO3 D) HCO3- E) CO2
If a diploid somatic cell has 46 chromosomes, a haploid gamete would have ________ chromosomes.
A. 23 B. 12 C. 46 D. 92