Question

1. True or False: The white matter in the cerebral cortex is called the arbor vitae.                 

2.

2. What type of neuron contains two cell processes?                 

3.

3. True or False: In the gray matter of the brain and spinal cord, there are many more neuroglia cells than neurons.                 

4.

4. True or False: Neuroglial cells are found in the central nervous system but not in the peripheral nervous system.                 _________.

5. All of the following cranial nerves innervate the extrinsic eye muscles except:

5.

1. the oculomotor nerve (III).
2. optic nerve (II).
3. abducens nerve (VI).
4. trochlear nerve (IV).

6.

6. The aqueduct of the midbrain is a narrow channel that connects what two brain ventricles?                 

7.

True or False: There are 10 pairs of cranial nerves.                 

8.

The outermost meningeal layer that surrounds the brain and spinal cord is the ______________________.

9.

9. True or False: The primary sensory area is located in the frontal lobe of the cerebrum.                 

10.

10. Spinal nerves are classified as mixed nerves because                 

                     

11.

11. True or False: The spinal cord ends between the T₁₂ and L₁ vertebrae.                 

12.

True or False: If two pins touch your skin simultaneously and you detect only one sensation, the pins touched the skin in the same receptive field.                 _______.

13.

13. Stretch reflexes involve the activity of what type of sensory receptors?                 

14.

14. The normal response for the ______________________reflex test is a slight extension of the leg.

15.

15. The normal response for both the plantar reflex and the _________________reflex is plantar flexion of the foot.

16.

16. True or False: Stretch reflexes are important because they protect muscles from damage caused by overextension.                 

17.

17. True or False: Of the three types of papillae on the surface of the tongue, only the filiform papillae contain taste buds.                 

18.

18. The area of the retina that lacks photoreceptive cells is called the ___________________.

19.

19. What structure contains smooth muscle that can dilate or constrict the pupil?                 

20.

20. What structure contains smooth muscle that can change the shape of the lens?                 

Answer 1

Answers.

Question 1.

False.

• The white matter of cerebellum is called as Arbor vitae.

Question 2.

Bipolar neuron.

• The axon and a dendrite are the two process of bipolar neuron.

Question 3.

True.

Question 4.

False.

Question 5.

B. Optic nerve.

• These are provide sensory innervation to the eye.

Question 6.

Third and fourth ventricles.

Question 7.

False

• There are 12 pairs of cranial nerves.

Question 8.

Dura mater.

Question 9.

False.

Question 10.

They contain both sensory and motor neurons