What is the main function of the quadriceps femoris group
a. arm flexion
b. hand supination
c. thigh abduction
d. knee extension
e. foot inversion
Answer: d. knee extension
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One of the divided origins of a muscle is termed a head.
Answer the following statement true (T) or false (F)
Which of the following is the correct sequence of events in bulk-phase endocytosis shown in the figure?
a) plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes > solutes released b) solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > vesicle formed pinches off into cytosol > digestion by enzymes c) vesicle formed pinches off into cytosol > solutes released > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes d) vesicle formed pinches off into cytosol > plasma membrane forms vesicle around extracellular droplets > fusion of lysosome and vesicle > digestion by enzymes > solutes released e) plasma membrane forms vesicle around extracellular droplets > vesicle formed pinches off into cytosol > fusion of lysosome and vesicle > digestion by enzymes > solutes released
Which of the following is not true of veins?
a. Blood drains into them from venules. b. They carry blood back to the heart. c. They have a thicker tunica media than do arteries. d. Their innermost layer is called the tunica intima.
A goblet cell produces ____________
Fill in the blank(s) with the appropriate word(s).