Infantile Reflexes Flashcards
Stages of Reflex: Age of Onset
- birth
- 2-3 months
- 5-6 months
A. Cortical
B. Spinal
C. Brainstem
- B
- C
- A
What is the expected response when the Palmar grasp reflex is elicited?
Flexion of all fingers, hand fisting
What is the expected response when the placing reflex is elicited?
Extremity flexion to place hand or foot over an obstacle
What is the expected response when the Tonic labyrinthine reflex is elicited in prone?
predominant flexor tone
What is the expected response when the Tonic
labyrinthine reflex is elicited in supine?
Predominant extensor tone
Enumerate the stimulus and response of the Neck righting or body derotational reflex.
Stimulus: Neck rotation in supine
Response: Sequential body rotation from shoulder to pelvis toward direction of face
Identify the RESPONSE of the Protective
extension or parachute reactions reflex.
Extension / abduction of lateral extremity
towards displacement to prevent falling
TRUE OR FALSE: Head and body righting reflex emerges at 5 months
True
It emerges at 4-6 months
TRUE OR FALSE: Head righting reflex emerges at 1 month in prone. In supine, it emerges in 3-4 months
A. Both statements are true
B. Both statements are false
C. Only the 1st statement is true
D. Only the 2nd statement is true
D. Only the 2nd statement is true
Prone - 2 months
In which month does the Equilibrium reflex emerge in sitting and standing?
Sitting - 6-8 months
Standing - 12-14 months
Match the reflexes based on the stimulus presented.
- Touch or pressure on palm or stretching finger flexors
- Visual and vestibular
- Supine or Prone position
- Displacement of center of gravity
- pressure on sole distal to MT heads
A. Palmar grasp
B. Plantar grasp
C. Tonic labyrinthine
D. Equilibrium or tilting reactions
E. Head righting
- A
- E
- C
- D
- B
Match the reflexes based on the age of suppression.
- 5-6 months
- 4-6 months
- 12-14 months
A. Palmar grasp
B. Plantar grasp
C. Tonic labyrinthine
D. Equilibrium or tilting reactions
E. Head righting
- A
- C
- B
Name 2 infantile reflex that is suppressed by 6-7 months.
- Symmetric tonic neck reflex
- Asymmetric tonic neck reflex
Name 2 infantile reflex that is suppressed by 4-6 months.
- Moro reflex
- Startle reflex
Enumerate the stimulus and response of the Symmetric tonic neck reflex.
Stimulus: Neck flexion or extension
Response: Arms flex, legs extend (flexion stimulus); arms extend, legs flex (extension stimulus)
Enumerate the stimulus and response of the Automatic neonatal walking reflex.
Stimulus: plantar contact and passive tilting of body forward and side to side on vertical support
Response: Alternating automatic steps with support
Determine which reflex is being described.
Stimulus: Displacement of center of gravity
Response: Adjustment of tone and posture of trunk
A. Head righting
B. Head and body righting
C. Protective extension or parachute reactions
D. Equilibrium or tilting reactions
D. Equilibrium or tilting reactions
Determine which reflex is being described.
Stimulus: Tactile, vestibular, proprioceptive
Response: Align body parts in anatomic
position relative to each other and gravity
A. Head righting
B. Head and body righting
C. Protective extension or parachute reactions
D. Equilibrium or tilting reactions
B. Head and body righting
This reflex’s RESPONSE is flexion of all toes. What reflex is being described?
Plantar grasp reflex
This reflex’s RESPONSE is the alignment of face/head vertically. What reflex is being described?
Head righting reflex
This reflex’s STIMULUS is tactile
contact on dorsum of foot or hand. What reflex is being described?
Placement or placing reflex
This reflex’s STIMULUS is displacement
of center of gravity outside supporting base in sitting or standing. What reflex is being described?
Protective extension or parachute reactions
Match the reflexes based on the stimulus presented.
- Sudden noise
- Light pressure or weight bearing on plantar surface
- Stroking lips / around mouth
- Head turning to side
- Sudden neck extension
A. Moro
B. Startle
C. Rooting
D. Positive Supporting
E. Asymmetric tonic neck
- B
- D
- C
- E
- A
Match the reflexes based on the response presented. You may choose 1-2 answers per number.
- Extremities extend on face side, flex on occiput side
- Moving mouth, head toward stimulus in search of nipple
- Shoulder abd, elbow & finger ext followed by arm flex add
- Legs extend for partial support of body weight
A. Moro
B. Startle
C. Rooting
D. Positive Supporting
E. Asymmetric tonic neck
- E
- C
- A & B
- D
Determine the age of suppression of the following reflex.
- Automatic neonatal walking
- Positive supporting
- Placement or placing reflex
- Rooting reflex
- Neck righting or body derotational reflex
A. 3-5 months
B. 3-4 months
C. 4 months
D. <12 months
E. 6-7 months
- B
- A
- D
- C
- C
Stages of Reflex: Age of Integration
- 2-3 months
- 5-6 months
- does not integrate
A. Spinal
B. Cortical
C. Brainstem
- A
- C
- B
Determine the category of reflexes.
- Flexor withdrawal reflex
- Cross extension response
- Parachute Reaction
- Sucking Reflex
- Protective Extension
A. Spinal
B. Brainstem
C. Cortical
D. Unclassified
- A
- A
- D
- D
- C
Determine the category of reflexes.
- Moro
- Equilibrium Reactions
- Rooting Reflex
- Landau Reaction
- Startle
A. Spinal
B. Brainstem
C. Cortical
D. Unclassified
- A
- C
- D
- D
- A
Determine the category of reflexes.
- Traction response
- ATNR/ STNR
- Grasp reflex
- Tonic Labyrinthine/ Lumbar
- Positive/ Negative supporting
A. Spinal
B. Brainstem
C. Cortical
D. Unclassified
- A
- B
- A
- B
- B
The following reflexes are unclassified, EXCEPT:
A. Primary Standing
B. Primary Walking
C. Writhing Reaction
D. Placing Reaction
E. Trunk Incurvation
C. Writhing Reaction
Identify the reflex.
STIMULUS: Noxious stimulus on the sole
RESPONSE: Ipsilateral LE flexion, ankle DF, and toe extension
Flexor withdrawal reflex
Identify the reflex.
STIMULUS: Noxious stimulus on ball of the foot
RESPONSE: C/L total LE flexion, adduction, or extension
Cross extension response
Identify the reflex.
STIMULUS: Passive pull at the forearm
RESPONSE: Rigid UE flexion, Good head control
Traction Response
What response is expected when a child has a (+) negative supporting reflex?
Rigid LE flexion
What response is expected when a child elicits tonic lumbar reflex by rotating on the left?
L UE flexion, R UE extension
L LE extension, R LE flexion
Determine the response.
Writhing reaction: neck on body/ body on neck stimulus
● NOB: When the neck moves, the upper body should follow
● BON: When the upper body moves, the neck follows
Determine the response.
Writhing reaction: body on body
● When the upper body moves, the lower segment follows
● When the lower segment moves, the upper body follows
Determine the response.
Writhing reaction: optical on neck/ neck on optical
● OON: When the eyes move, the neck follows
● NOO: When the neck moves, the eyes follows
Determine the reflex.
STIMULUS: Deep moving pressure
RESPONSE: I/L trunk lateral flexion
Trunk Incurvation / Galant
Determine the reflex.
STIMULUS: Anterior Suspension (“Belly Flop”)
RESPONSE: Total body extension
Landau Reaction
Determine the reflex.
STIMULUS: Supported standing position
RESPONSE: Standing position
Primary Standing
Determine the reflex.
STIMULUS: Suspension, Vertical (“Head
Down”)
RESPONSE: Total body extension
Parachute
Reaction
Determine the reflex.
STIMULUS: Supported standing position + forward lean
RESPONSE: Automatically Walk or
Step
Stepping Reflex/ Primary Walking
