Exam 3

Question 1

Neurolemmocytes in PNS and oligodendroglia in the CNS comprise the

Answer 1

Myelin sheaths

Question 2

Star shaped neuroglia

Answer 2

Astrocytes

Question 3

What contains cerebral spinal fluid

Answer 3

Subrarachnoid space, cerebral aqueduct, ventricles

Question 4

What contains cell bodies of peripheral somatic sensory neurons

Answer 4

Dorsal root ganglia

Question 5

Collection of neuron cell bodies and synapses lying inside the CNS

Answer 5

Nucleus

Question 6

Centers in brain that control respiration

Answer 6

Pons and medulla

Question 7

Coordinates reflexes and movements that serve to maintain posture

Answer 7

Cerebellum

Question 8

Relay center for both sensory abd motor activities (link between cerebral cortex and lower centers)

Answer 8

Thalamus

Question 9

Division of nervous system related to stress

Answer 9

Autonomic, sympathetic

Question 10

The ANS functions to maintain homeostasis. Excitatory activies of sympathetic and inhibitory activities of the parasympathetic

Answer 10

True

Question 11

Division of nervous system that is associated with everyday regulation of visceral effectors

Answer 11

Autonomic, parasympathetic

Question 12

What contains peripheral somatic motoneurons

Answer 12

Ventral horn

Question 13

Parasympathetic

Answer 13

Craniosacral origin

Question 14

Preganglionic neuron

Answer 14

Conduct impulses to ganglion

Question 15

Postganglionic neuron

Answer 15

Conduct impulses from ganglion

Question 16

Sympathetic

Answer 16

Thoracolumbar origin

Question 17

Sympathetic chain ganglia

Answer 17

Extend from C2 to coccyx vertebrae

Question 18

Part of neuron that conducts impulses away from soma

Answer 18

Axon

Question 19

Found in spinal cord

Answer 19

Cell bodies of efferent neurons
Cell bodies of interneurons

Question 20

Cell bodies of afferent neurons are located

Answer 20

Dorsal root ganglia

Question 21

Contains cell bodies of peripheral sympathetic autonomic motoneurons

Answer 21

Sympathetic chain ganglia

Question 22

Sensory neurons of peripheral nervous system are

Answer 22

Pseudounipolar

Question 23

Which part of spinal cord supplies nerves to shoulder girdles and arms

Answer 23

Cervical

Question 24

Adult spinal cord extends to which vertebral level

Answer 24

L1 or L2

Question 25

Most superficial layer of meningeal covering of spinal cord is

Answer 25

Dura mater

Question 26

Fold of dura mater that projects between cerebral hemispheres in the midsagittal plane

Answer 26

Falx cerebri

Question 27

Diffusion of cerebral spinal fluid across arachnoid villi returns this fluid to

Answer 27

Venous circulation

Question 28

Lateral apertures and median aperture provide a passageway for the circulation of cerebral spinal fluid to the

Answer 28

Subarachnoid space

Question 29

Primary motor and sensory strips of cerebral cortex are separated by the

Answer 29

Central sulcus

Question 30

The surface of the precenteal gyrus contains the

Answer 30

Primary motor cortex

Question 31

Sensory and motor regions of the cortex are connected to nearby areas that interpret the incoming data or coordinate the motor response. Those areas are

Answer 31

Association areas

Question 32

Portions of cerebral cortex are interconnected by

Answer 32

Association fibers Commissural fibers Projection fibers

Question 33

Vagus nerve is number

Answer 33

10

Question 34

Voluntary motor commands are routed over which pathways

Answer 34

Corticospinal tracts

Question 35

Preganglionic neurons from T and L segments that synapse with the postganglionic neurons in the paravertebral ganglia are part of which division of the autonomic nervous system

Answer 35

Sympathetic

Question 36

Cells of CNS are derived from

Answer 36

Ectoderm

Question 37

Cranial nerves 3, 4, 6 control eye movement which may be tested by having patient look up down, right left and diagonally

Answer 37

True