39. Nerves that carry impulses toward the CNS only are a. afferent nerves b. eff

Question

39. Nerves that carry impulses toward the CNS only are a. afferent nerves b. efferent nerves c. motor nerves d. mixed nerves e. autonomic 40. Ascending sensory pathways consists of a chain of neurons referred to as first, second or third order neurons. What is the location of the cell body for first order neurons? a. dorsal root ganglion b. spinal thalamic tract c. thalamus d. hypothalamus e. postcentral gyrus 41. Transduction refers to conversion of a. presynaptic nerve impulses to postsynaptic nerve impulses b. stimulus energy into energy of a graded potential c. receptor energy to stimulus energy d. afferent impulses to efferent impulses e. action potential to graded potential

Explanation / Answer

Answers

39. Nerves that carry impulses toward the CNS only are afferent nerves.
- They recieve the information from sensory organs as an impulse and trasmit it towards the CNS.
Option A

40. The location of the cell body for first order neurons is dorsal root ganglia.
- The impulse from afferent nerve reaches dorsal root ganglia as cell bodies of first order neurons are located there.
Option A

41. Transduction refers to conversion of stimulus energy into energy of graded potential.
- The sensory signals are converted into nerve impulse to carry them towards the CNS.
Option B

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.