Neuro: Pharm of Eye

Question 1

Pupilary Sphincter Muscle

(Iris)

Answer 1

• M₃ receptor (Parasympathetic Nervous System)
• Stimulation –> Contraction –> Miosis
• Blockage –> Relaxtion –> Mydriasis

Question 2

Radial Dilator Muscle

(Iris)

Answer 2

• α receptor - Sympathetic Nervous System
• Stimulation –> Contraction –> Mydriasis
• Blockage –> Relexation –> Miosis

Question 3

Ciliary Muscle

Answer 3

• M₃ - Parasympathetic Nervous System
• Stimulation –> Contraction –> Accommodation for Near Vision
• Blockage –> Relaxation –> Focus for Far Vision

Question 4

Ciliary Body Epithelium

Answer 4

• β receptor - Sympathetic Nervous System
• Stimulation –> Secretion of Aqeuous Humor
• Blockage –> Decreased Aqeuous Humor Production