A motor unit is a single muscle plus all of the motor neurons that innervate it
Indicate whether the statement is true or false
F
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All of the following are true of the subcutaneous layer except it
A) contains many blood vessels. B) permits independent movement of deeper structures. C) contains large amounts of adipose tissue. D) is attached to the dermis by a basement membrane. E) is well supplied with nerves that pass into the skin.
Beginning inferior to the urinary bladder, sperm travel to the exterior through the urethral regions in what sequence?
a. prostatic urethra, spongy urethra, membranous urethra b. prostatic urethra, membranous urethra, spongy urethra c. membranous urethra, prostatic urethra, spongy urethra d. spongy urethra, prostatic urethra, membranous urethra
Which of the following would be an example of the process taking place at B?
A)the movement of a specific protein from the membrane to the cytoplasm B)the binding of a chemical messenger activating a cytoplasmic enzyme, such as kinase, that leads to specific cellular responses C)the transport of a specific chemical messenger into the cell D)the conversion of a chemical messenger molecule into a specific product
What creates the taeniae coli?
A) longitudinal layer of the muscularis externa B) oblique layer of the muscularis externa C) circular layer of the muscularis externa D) serosa