This figure shows the muscles of facial expression. What muscle does number 8 indicate?
A. Mentalis
B. Sternocleidomastoid
C. Risorius
D. Depressor labii inferioris
E. Levator labii superioris
Answer: A
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Which of the following structures is a barrier to the filtration of proteins across the glomerulus?
A. capillary endothelial cells B. basement membrane C. lacis cells D. parietal epithelial cells E. mesangial cells
In fish, the pattern of the sequential activation of muscle contraction is known as __________ and is under the control of the central nervous system
Fill in the blank with the correct word.
Select the incorrect association
a. anatomy/function b. human body/multicellular. c. carbon dioxide/cell waste product. d. physiology/body function. e. unicellular/one-celled.
Cardiac muscle cannot undergo tetanus because its absolute refractory period lasts almost as long as the muscle twitch
Indicate whether the statement is true or false.