A circular muscle band that contracts at an orifice is also known as a _______________
Fill in the blank with correct word.
sphincter
You might also like to view...
The contraction phase of the cardiac cycle is termed ________.
Fill in the blank(s) with the appropriate word(s).
During spermatogenesis, the first meiotic division yields two ____, and the second meiotic division yields four ____
a. primary spermatocytes; secondary spermatocytes b. secondary spermatocytes; spermatids c. spermatids; spermatozoa d. spermatogonia; primary spermatocytes e. spermatogonia; secondary spermatocytes
In this image showing connective tissue components, what structure does number 1 indicate?
A. Mesenchymal cell B. Macrophage C. Fibroblast D. Extracellular matrix E. Adipocyte
What is hematology?
A) Hematology is the study of the heart. B) Hematology is the study of blood vessel structure and function. C) Hematology is the study of blood, blood-producing organs, and blood disorders. D) Hematology is the study of the immune system. E) Hematology is the study of cancers of the blood.