Nutrients that are necessary for health, but that human cells cannot synthesize, are called ________ nutrients.
Fill in the blank(s) with the appropriate word(s).
essential
Anatomy & Physiology
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The pigment found in vegetables that can make the skin appear orange or yellow is called
A) cadmium. B) carotene. C) hemoglobin. D) keratin. E) melanin.
Anatomy & Physiology
Which of the following is not a way muscle contractions can be graded?
A) changing the frequency of stimulation B) changing the strength of the stimulus C) changing the type of muscle fibers involved in the contraction D) changing the type of neurotransmitter released by the motor neuron
Anatomy & Physiology
Which of the following cranial nerve mediates the corneal reflex?
A) oculomotor B) trigeminal C) abducens D) trochlear
Anatomy & Physiology
Parasympathetic neurons are:
a. visceral motor b. always excitatory c. always inhibitory d. visceral sensory
Anatomy & Physiology