Questions 1. Which of the following statements is FALSE? A. Drugs that block pro

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Questions

1. Which of the following statements is FALSE?

A. Drugs that block prostaglandin synthesis prevent pain signals from being initiated in sensory neurons

B. The crossing of an axon from one side of the body to the other within an ascending pathway is called decussation

C. The thalamus is the final relay point for ascending somatosensory information that will be projected to the primary sensory cortex

D. The area monitored by a single receptor cell is called its receptive field

E. The information from a tactile receptor on the left side of the body is transmitted to the right primary motor cortex in the pre-central gyrus for conscious awareness

2. When a sound wave carries vibration to the basilar membrane which causes cilia of the inner ear hair cells to be pressed against the tectorial membrane

A. There is a change in the transmembrane potential of the hair cells

B. Nausea occurs

C. The hair cells are permanently damaged

D. The force is converted into mechanical energy

E. The cells for gap junctions with the cilia of the tectorial membrane

Explanation / Answer

1)option e. 2) option A. when sounds raises or lowere hair cells and bends the hairs against the hairs against surrounding fluid and tectorial memebrane, when hairs are displaced mechanoreceptors are activated changing membrane potential of hair cell.   

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