Ch.13 Flashcards
15) Muscle spindles are located in the ___ and sense;
15) muscle , degree of stretch
27) What term refers to how the body can anticipate a change in balance as you begin to move?
27) postural reflex / feed foward
12) If a reflex involves more than two neurons and synapses, it is called;
12) Polysynaptic
8) Autonomic reflexes involve what type of muscle(s)?
8) smooth muscle
16) Golgi tendon organs are located in the ___ and sense;
16)near tendon, sense force on muscle
28) What does feed forward combine with to make sure that you don’t fall down?
28) combines with feedback
1) In a neural reflex, where does the stimulus originate from?
1) Sensory receptor
3) Afferent neurons send signals toward;
3) CNS integration
10) Reflexes which occur within the brain primarily involve the special senses T/F
10) F
23) The most common reflexive adjustment to a painful stimulus is to;
23) Flex away.
29) What 2 functions do reflexes have in the GI tract? In the CV system?
29) moves product and valvues
19) Increasing the number of motor units involved in a muscle contraction is called;
19) retractment
20) If the CNS senses an overload of the muscle, the reflex action is to increase contraction force T/F
20) F
30) What two controls effective reflexes of the visceral organs?
30) autonomic neurons and hormonal
21) What type of receptors are stimulated when a nail enters your foot?
21) Nociceptor
17) Joint receptors help to sense what two things?
17) sense pressure on joint , position of joint (angle)
18) In a joint like the elbow, all of the nerves, receptors, and muscles are called one;
18)myotactic unit
25) Which of the following is not true of the cross extensor reflex;
25) - signal sent to opposite leg
- extensor stimulationted
- flexor inhibitors
- body supported
7) Somatic reflexes involve what type of muscle(s)?
7) skeletal musule
24) The brain can feel the pain at the same time that the reflex is attempting to remove the stimulus T/F
24) T
4) Efferent neurons send signals toward;
4) Muscle and gland.
22) Where are most pain reflexes integrated?
22) spinal cord
14) Which of the following is not a function of a visceral reflex;
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)
26) Postural reflexes often integrate the cerebellum in the reflex T/F
26) T
6) Even if a reflex does not involve the brain, the brain will receive information that it has occurred T/F
6) T
2) Where are most sensory receptors?
2) skin
5) Most reflexes are intended to help prevent ___ or to assist with ___.
5)injury, movement
13) Autonomic reflexes may be either mono- or polysynaptic T/F
13) F.
11) If a reflex involves two neurons and one synapse, it is called;
11) monosynaptic
9) Reflexes in which the integration occurs below the head are called;
9) spinal
