Ch.13

Question 1

15) Muscle spindles are located in the ___ and sense;

Answer 1

15) muscle , degree of stretch

Question 2

27) What term refers to how the body can anticipate a change in balance as you begin to move?

Answer 2

27) postural reflex / feed foward

Question 3

12) If a reflex involves more than two neurons and synapses, it is called;

Answer 3

12) Polysynaptic

Question 4

8) Autonomic reflexes involve what type of muscle(s)?

Answer 4

8) smooth muscle

Question 5

16) Golgi tendon organs are located in the ___ and sense;

Answer 5

16)near tendon, sense force on muscle

Question 6

28) What does feed forward combine with to make sure that you don’t fall down?

Answer 6

28) combines with feedback

Question 7

1) In a neural reflex, where does the stimulus originate from?

Answer 7

1) Sensory receptor

Question 8

3) Afferent neurons send signals toward;

Answer 8

3) CNS integration

Question 9

10) Reflexes which occur within the brain primarily involve the special senses T/F

Answer 9

10) F

Question 10

23) The most common reflexive adjustment to a painful stimulus is to;

Answer 10

23) Flex away.

Question 11

29) What 2 functions do reflexes have in the GI tract? In the CV system?

Answer 11

29) moves product and valvues

Question 12

19) Increasing the number of motor units involved in a muscle contraction is called;

Answer 12

19) retractment

Question 13

20) If the CNS senses an overload of the muscle, the reflex action is to increase contraction force T/F

Answer 13

20) F

Question 14

30) What two controls effective reflexes of the visceral organs?

Answer 14

30) autonomic neurons and hormonal

Question 15

21) What type of receptors are stimulated when a nail enters your foot?

Answer 15

21) Nociceptor

Question 16

17) Joint receptors help to sense what two things?

Answer 16

17) sense pressure on joint , position of joint (angle)

Question 17

18) In a joint like the elbow, all of the nerves, receptors, and muscles are called one;

Answer 17

18)myotactic unit

Question 18

25) Which of the following is not true of the cross extensor reflex;

Answer 18

25) - signal sent to opposite leg
- extensor stimulationted
- flexor inhibitors
- body supported

Question 19

7) Somatic reflexes involve what type of muscle(s)?

Answer 19

7) skeletal musule

Question 20

24) The brain can feel the pain at the same time that the reflex is attempting to remove the stimulus T/F

Answer 20

24) T

Question 21

4) Efferent neurons send signals toward;

Answer 21

4) Muscle and gland.

Question 22

22) Where are most pain reflexes integrated?

Answer 22

22) spinal cord

Question 23

14) Which of the following is not a function of a visceral reflex;

Answer 23

14) Functions :
- cause piloercetor muscle to form goose bumps
- regulates internal organ function ( especially digestion)
- help maintain blood pressure
- integrate in spinal cord or lower brain (usually medulla)

Question 24

26) Postural reflexes often integrate the cerebellum in the reflex T/F

Answer 24

26) T

Question 25

6) Even if a reflex does not involve the brain, the brain will receive information that it has occurred T/F

Answer 25

6) T

Question 26

2) Where are most sensory receptors?

Answer 26

2) skin

Question 27

5) Most reflexes are intended to help prevent ___ or to assist with ___.

Answer 27

5)injury, movement

Question 28

13) Autonomic reflexes may be either mono- or polysynaptic T/F

Answer 28

13) F.

Question 29

11) If a reflex involves two neurons and one synapse, it is called;

Answer 29

11) monosynaptic

Question 30

9) Reflexes in which the integration occurs below the head are called;

Answer 30

9) spinal