Substance P_____ . a. increases pain-related signals b. is a natural painkiller c. is the active ingredient in aspirin

____ provides the major internal reinforcement of the posterior part of the eyeball, and helps to keep the retina pressed firmly against wall of eyeball (formed ONLY before brith).   A. macula lutea   B. vitreous humor   C. ciliary zonule   D. aqueous humor What type of cells in the eye have axons leaving the retina via the optic nerve for vision?   A. bipolar cells   B. photoreceptors   C. ganglion cells   D. rods and cones In terms of eye reflexes, extrinsic eye muscles are responsible for medial eye movements that is essential for near vision. This movement is called _______ (both eyes are directed toward the near object viewed).   A. visual acuity   B. binocular vision   C. depth perception   D. convergence

Caffeine inhibits feeding activity in tobacco hornworm larvae by ________. a. Inhibiting phosphodiesterase (PDE). b. Increasing cAMP c. Both inhibiting phosphodiesterase (PDE) and increasing cAMP

Where would you expect to observe the rash that results from a viral infection called shingles, which typically affects a single dorsal root ganglion? a. On both sides of the neck, but not extending into the thorax. b. Radiating down the left forearm, left chest, and throat area. c. Only a small section of skin that crosses the midline. d. Only within a single dermatome. e. Only on one side of the body starting from the shoulder and extending into the leg.