A reflex in which the sensory input and motor output are on opposite sides of the spinal cord, is called a(n) ________ reflex arc
A) monosynaptic
B) contralateral
C) ipsilateral
D) intersegmental
E) polysynaptic
B
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What is the correct order for the events that occur during a reflex? a: Impulse travels through sensory neuron to the CNSb: A stimulus activates a receptorc: Information is processed by interneuronsd: Motor neuron transmits impulse to effectore: Effector responds
A. c, b, a, e, d B. b, a, c, d, e C. a, b, c, d, e D. c, a, b, d, e E. b, d, c, a, e
Chromosomes are shaped like the letter Z
Indicate whether the statement is true or false
The tissue phagocytes called macrophages are derived from
a. neutrophils b. eosinophils c. basophils d. lymphocytes e. monocytes
Compartments A and B are separated by a membrane that is permeable to K+ but not to Na+ or Cl-. At time zero, a solution of KCl is poured into compartment A and an equally concentrated solution of NaCl is poured into compartment B
Which would be true once equilibrium is reached? A. The concentration of Na+ in A will be higher than it was at time zero. B. Diffusion of K+ from A to B will be greater than the diffusion of K+ from B to A. C. There will be a potential difference across the membrane, with side B negative relative to side A. D. The electrical potential difference and diffusion potential due to the concentration gradient for K+ will be equal in magnitude and opposite in direction. E. The concentration of Cl- will be higher in B than it was at time zero.