The charge difference between the inside and outside of a cell that is not sending any impulses is known as its _______
Fill in the blank(s) with the appropriate word(s).
resting membrane potential
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A person with frequent heartburn is more likely than others to eventually develop this condition
A) Large intestine
B) Stomach
C) Esophageal cancer
D) Appendix
E) Mouth
F) Salivary glands
G) Rectum
H) Cirrhosis
I) Gallbladder
J) Small intestine
Which of the following statements regarding smooth muscle versus striated muscle is false?
A. Calcium for skeletal muscle contraction enters the cell from the sarcoplasmic reticulum and through voltage-gated calcium channels in the plasma membrane, whereas the calcium for smooth muscle contraction enters the cell from the sarcoplasmic reticulum only. B. Smooth muscle contraction is regulated by the binding of calcium to calmodulin, whereas skeletal muscle contraction is regulated by the troponin-tropomyosin system. C. Smooth muscle is activated by the autonomic nervous system, whereas skeletal muscle is activated by the somatic nervous system. D. Separate enzymes mediate the binding of myosin to actin through phosphorylation and dephosphorylation in smooth muscle, whereas the myosin heads of skeletal muscle function as enzymes themselves to hydrolyze ATP. E. Smooth muscle contracts longer and relaxes more slowly compared to skeletal muscle.
Body cells have self-markers located
a. in their nuclei. b. in the endoplasmic reticulum. c. in the mitochondria. d. on the plasma membrane. e. inside the Golgi bodies.
What is the cecum a part of?
A) the mouth B) the large intestine C) the stomach D) the small intestine large intestine