Which of the following chemicals paralyzes skeletal muscle by binding to the acetylcholine receptor sites?
a. black widow spider venom.
b. curare.
c. organophosphates.
d. DDT.
e. local anesthetics.
B
Anatomy & Physiology
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Adjacent cardiac muscle cells are joined together end-to-end in the ventricles by
a. intercalated discs. b. sarcomeres. c. Purkinje fibers. d. sinoatrial nodes. e. atrioventricular nodes.
Anatomy & Physiology
The nose is _______ to the mouth.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Which of the following is an example of membranous organelles?
A) lysosomes
B) cilia
C) centrioles
D) ribosomes
E) cytoskeleton
Anatomy & Physiology
Observing the parts of the brain is a part of the study of
A. physiology. B. anatomy. C. homeostasis. D. anthropology.
Anatomy & Physiology