Question

True or False

T or F - Damage to the olfactory nerve could result in blurred vision.

T or F -  EPSP’s are triggered by neurotransmitter GABA.

T or F - Local potentials occur on the dendrites or soma of the neuron and are graded or decrimental in nature.

T or F - Acetylcholine from a presysnaptic neuron is released into the synaptic cleft as a result of chlorine ions entering its’ synaptic bulb.

T or F - The epineurium surrounds individual nerve fibers.

T or F - During the absolute refractory period, it is possible for another action potential to occur.

T or F - The spinal nerve is only motor, not sensory.

T or F - The hypothalamus is responsible for smooth, coordinated muscle movements.

Answer 1

ANSWER. -

1. FALSE

- Blurred vision can be caused by Occipital neuralgia where indidual can feel blurred vision.

- Olfactory nerve damage causes loosing ability of smell and taste.

2. TRUE

- EPSP is mediated largely by inhibitory neurotrasmittion (IPSP) which is done by glycine in spinal cord, GABA(gama amino butyric acid) a metabolite also mediate EPSP.

3. TRUE

- in neurons local potential or graded potential happens in specialized regions of connection with synaptic contact like post synaptic plasma membrane in dendrite or soma.

4. FALSE

- Calcium entry causes synaptic vessicle to release acetylcholine to the synaptic cleft. Acetylcholine is strored in small sacs or vesicles in terminal.

5. FALSE

- The Endoneurium surrounds the individual nerve fibers.

- Epineurium surrounds fasicular bundles.

6. FALSE

- Na+ channels are inactive, extra depolarization will not lead to new action potential.

7. FALSE

- Anatomically spinal nerve is a mixed nerve, which capable to carry both sensory and motor. Which carry between spinal cord and various body parts.

8. FALSE

- Smooth coordinate muscle movement is done by basal ganglia and cerebellum part of brain.

- hypothalamus is responsible for metabolic process and activities of ANS.