Walking a tightrope would activate which portion(s) of the medulla?
A. The olives
B. The pyramids
C. The pyramids and the superior colliculi
D. The pyramids and the olives
E. The superior colliculi
Answer: D
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Which of the following is an example of a parasympathetic visceral reflex?
A) defecation reflex B) cardioacceleratory reflex C) pupillary reflex D) ejaculation (in males) in response to tactile stimuli E) vasomotor reflex
What is found in the lateral gray horns of the spinal cord?
A. The cell bodies of somatic sensory neurons B. The cell bodies of somatic motor neurons C. The cell bodies of sensory neurons D. The cell bodies of autonomic motor neurons
Which statement is correct?
A) Using expensive hair products can enhance the mitotic growth of hair cells within the shaft. B) A hair shaft is made of varying densities and consistencies of keratin. C) All hairs have the same growth cycle until mid-life. D) Carotene is the major pigment that colors hair shafts. E) Any hair loss signifies a medical condition, which should be checked by a doctor.
The nucleus of a cell functions to
A. control and coordinate cellular activities. B. produce ATP. C. digest lipids. D. synthesize proteins. E. produce secretory vesicles.