When an electrical impulse reaches the end of a nerve cell, the nerve cell releases the neurotransmitter __________ , and that begins the contraction of a muscle fiber.
Fill in the blank(s) with correct word
Ans: acetylcholine
Anatomy & Physiology
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Briefly describe the events leading to the implantation of the blastocyst in the uterus, including how it is nourished
What will be an ideal response
Anatomy & Physiology
Not counting sesamoid bones, what is the total number of tarsals, metatarsals, and phalanges in a single ankle and foot?
A. 32 B. 24 C. 26 D. 30 E. 27
Anatomy & Physiology
Which of the following is NOT reabsorbed in the nephron loop?
sodium bicarbonate chloride water
Anatomy & Physiology
What molecule in the nucleus contains instructions for making proteins?
A) histone molecules B) DNA C) RNA D) ATP E) enzymes
Anatomy & Physiology