What cells produce testosterone?
A. seminiferous cells
B. interstitial cells
C. cumulus cells
D. sustentacular cells
E. spermatogonia
Answer: B. interstitial cells
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If a muscle joins a bone without any visible tendon, it is said to have a(n) __________attachment.
A. aponeurosis B. indirect C. direct D. retinaculum E. hidden
Regulatory proteins are degraded outside of lysosomes by binding to ________ and then broken down by the proteasome.
A. lysosomes B. ribosomes C. chaperones D. ubiquitin
The diffusion of calcium ions into a smooth muscle cell does not depolarize the membrane so no action potential occurs
Indicate whether the statement is true or false.
Lymphatic capillaries are held in place by ________ filaments that attach the endothelial cells to nearby structures.
Fill in the blank(s) with the appropriate word(s).