Chapter 15- Neural Integration I Flashcards Preview

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Flashcards in Chapter 15- Neural Integration I Deck (49)
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The primary sensory cortex of the cerebral hemispheres or areas of the cerebellar hemispheres receive.........information.

Somatic sensory

1

Visceral sensory information is distributed primarily to reflex centers in the...

Brain stem and diencephalon

2

The somatic nervous system consists of...

Motor neurons and pathways that control skeletal muscles

3

The somatic motor portion of the efferent division of the nervous system is responsible for control of...

Skeletal muscles

4

Regardless of the nature of the stimulus, sensory information must be sent to the CNS in the form of...

Action potentials

5

Free nerve endings can be stimulated by many different stimuli cause they exhibit...

Little receptor specificity

6

The receptors that provide information about the intensity and rate if change of a stimulus are called...

Tonic receptors

7

Each receptor has a characteristic sensitivity.

True

8

Nocicepters, common in the skin, joint capsules, and around the walls of blood vessels, are sensory receptors for...

Pain

9

The general sensory receptors that respond the physical distortion are the...

Mechanoreceptors

10

Thermoreceptors are phasic receptors because they are...

Very active when the temperature is changing

11

Tactile receptors provide sensations of...

Touch, pressure, and vibration

12

Pressure changes in the wall of a blood vessel are monitored by...

Baroreceptors

13

The pH, carbon dioxide, and oxygen concentrations of arterial blood are monitored by...

Chemoreceptors

14

The three major somatic sensory pathways are the...

Posterior column, spinothalamic, and spinocerebellar

15

The axons of the posterior column ascend within the...

Fasciculus gracilis and fasciculus cuneatus

16

The spinothalamic pathway consists of...

Lateral and anterior tracts

17

Proprioceptive data from peripheral structures, visual information from the eyes, and equilibrium related sensations are processed and integrated in the...

Cerebellum

18

The integrative activities preformed by neurons in the cerebellar cortex and basal nuclei are essential to the...

Precise control of voluntary and involuntary movements

19

The somatic nervous system issues somatic motor commands that direct the...

Control of skeletal muscles

20

The upper motor neuron of a somatic motor pathway has a cell body that lies in a...

CNS processing center

21

The three integrated pathways controlling conscious and subconscious motor commands in skeletal muscle are the...

Corticospinal, medial, and reticulospinal

22

The motor tracts in the spinal cord controlling subconscious regulation of balance and muscle tone are the............tracts

Tectospinal

23

The background patterns of movement involved in voluntary motor activities are controlled by...

Basal nuclei

24

The center of somatic motor control that plans and initiates voluntary motor activity is...

Hypothalamus

25

The center of somatic motor control that makes the movement efficient, smooth, and precisely controlled is the...

Cerebellum

26

The center of somatic motor control that controls basic respiratory reflexes is the...

Medulla oblongata

27

If a tract name begins with spino-,it must start in the...

Spinal cord and end in the brain, carrying sensory information

28

If the name of a tract ends in -spinal, it's axons must start in the...

Higher centers and end in the spinal cord, bearing motor commands

29

The posterior column pathway receives sensations associated with...

Highly localized fine touch, pressure, vibration, and position