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ANAPHY LAB > REFLEXES > Flashcards

REFLEXES Flashcards

1
Q

An automatic, involuntary response

A

REFLEX

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2
Q
  • can be a RESPONSE TO A STIMULUS or to internal feedback
  • necessary to survival
A

REFLEX

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3
Q

function of the reflex

A

MAINTAIN HOMEOSTASIS

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4
Q

the FUNCTIONAL UNIT of the nervous system

A

NEURON

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5
Q

Neurons and their components can be found in the

A

BRAIN, SPINAL CORD, PERIPHERAL TISSUES

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6
Q
  • RELAY sensory and motor information from one tissue to another using ELECTROCHEMICAL SIGNALS.
  • Act as INTEGRATING CENTERS
A

NEURONS

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7
Q

3 main structures of a neuron

A

cell body (soma, perikaryon)
dendrites
axons

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8
Q
  • Contains the components of a typical cell that conduct the normal processes of a living cell.
  • Responds to messages FROM DENDRITES by processing information.
A

CELL BODY (soma, perikaryon)

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9
Q
  • Extensions of the cell body that are RECEPTIVE TO STIMULI.
  • Conducts messages TOWARDS CELL BODY.
A

DENDRITES

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10
Q
  • A SINGLE EXTENSION of the cell body that transmits information from cell bodies to ‘other cells’.
  • ‘Other cells’ respond to messages by continuing the conduction of the message or physically doing work (e.g. muscle contraction).
A

AXONS

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11
Q

TYPES OF NEURONS

A

SENSORY
MOTOR
INTERNEURONS

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12
Q

composed of the axons and dendrites of multiple neurons

A

NERVE

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13
Q

where is the nerve located

A

OUTSIDE OF THE CNS

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14
Q

conduct messages to and from the CNS

A

NERVES

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15
Q

Messages conducted TOWARDS the CNS are – pain, touch, temperature

A

SENSORY IN NATURE

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16
Q

Messages conducted AWAY from the CNS are – result in muscle contraction or gland secretion.

A

MOTOR IN NATURE

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17
Q

houses a number of the cell bodies of the nerves located in the peripheral tissues

A

SPINAL CORD

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18
Q

Acts as one of the INTEGRATING CENTERS for reflexes

A

SPINAL CORD

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19
Q

The spinal cord is housed within the vertebrate of the ________

A

VERTEBRALMCOLUMN

20
Q

The spinal cord extends from the base of the skull to

A

LUMBAR 2

21
Q

regions of the spinal cord

A

cervical
thoracic
lumbar
sacral

22
Q

Nerves attach to the spinal cord at two roots

A

ANTERIOR & DORSAL ROOTS

23
Q

The actual anatomical and physiological basis behind a reflex is a

A

REFLEX ARC

24
Q

The SIMPLEST of all nerve pathways

A

REFLEX ARC

25
Q

The ROUTE messages or information travels through the nervous system

A

NERVE PATHWAY

26
Q

a nerve pathway involves what types of neurons

A

SENSORY & MOTOR

27
Q

a nerve or specialized tissue located at the end of a sensory neuron that is the FIRST STRUCTURE TO RESPOND to a stimulus

A

SENSORY RECEPTOR

28
Q

may act as the sensory receptor

A

SENSORY NEURON

29
Q

The TISSUE that responds to the message from the motor neuron

A

EFFECTOR ORGAN/TISSUE

30
Q

COMPONENTS OF A REFLEX ARC

A

SENSRY RECEPTOR
SENSORY NEURON
SPINAL CORD / BRAIN TISSUE
MOTOR NEURON
EFFECTOR ORGAN/TISSUE

31
Q

2 MAIN GROUPS OF REFLEXES

A

SOMATIC
AUTONOMIC / VISCERAL

32
Q

The effector tissues of ________ are SMOOTH muscle, CARDIAC muscle and GLANDULAR
tissue.

A

AUTONOMIC REFLEXES

33
Q

Both the _____ and _________ can act as integrating centers for AUTONOMIC REFLEXES

A

BRAIN & SPINAL CORD

34
Q

_________ result in gastric juice secretion, mouth watering upon seeing/smelling/thinking about food, regulating blood pressure, adjusting heart rate to level of exercise, etc.

A

AUTONOMIC REFLEXES

35
Q

The effector tissue of SOMATIC REFLEXES is _________

A

SKELETAL MUSCLE

36
Q

You have ________ over all of your skeletal muscles

A

CONSCIOUS CONTROL

37
Q

Stretching of muscle stimulates specialized sensory receptors located in THIGH MUSCLES called __________ to be stretched

A

MUSCLE SPINDLES

38
Q

withdrawal reflex involves how many neurons

A

3

39
Q

REMOVE a limb or body part form a PAINFUL STIMULUS

A

WITHDRAWAL REFLEX

40
Q

response to a STRETCH REFLEX

A

KNEE EXTENSION

41
Q

response to WITHDRAWAL REFLEX

A

KNEE FLEXION

42
Q

Associated with a withdrawal reflex of the LOWER LIMBS

A

CROSSED-EXTENSOR REFLEX

43
Q

PREVENTS FALLS by SHIFTING WEIGHT OF BODY to unaffected limb

A

CROSSED-EXTENSOR REFLEX

44
Q

response to CROSSED-EXTENSOR REFLEX

A

KNEE EXTENSION

45
Q

compression of spinal cord

A

SPINAL STENOSIS

46
Q

Demyelination Muscular dystrophies
Spinal cord injuries
Closed head injuries

A

ABSENT REFLEXES

ANAPHY LAB (10 decks)

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