The predominant lipid in the cell membrane is a ________.
A. glycolipid
B. cholesterol
C. phospholipid
D. prostaglandin
E. triglyceride
Answer: C
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Which plexus is located between the longitudinal and circular smooth muscle layers of the muscularis?
a) ENS b) Myenteric plexus c) Submucosal plexus d) Digestive plexus e) Absorption plexus
Which of the following factors that affect skin drag, can athletes usually alter?
A. roughness of the body surface B. amount of surface area in contact with the fluid C. viscosity of the fluid D. both A and B E. all of the above
Similar to skeletal muscle cells, all smooth muscle cells are excited by ACh.
Answer the following statement true (T) or false (F)
Another name for the pinna of the external ear is the ________.
A. external auditory meatus B. ear drum C. tympanic membrane D. auricle