Reflexes and Signs in Neurology

Questions and Answers

Which nerve roots are associated with the Triceps Reflex?

C5-C6

L2-L4

S1-S2

C7-C8 (correct)

What is the abnormal response in the Babinski Sign?

Only fanning of the other toes

Downward movement of the big toe

No movement of the toes

Upward movement of the big toe and fanning of the other toes (correct)

What is the muscle involved in the Patellar Reflex?

Brachioradialis

Biceps

Quadriceps (correct)

Triceps

Which reflex is associated with the C5-C6 nerve roots?

Biceps Reflex Signup and view all the answers

What is the response in an Absent Biceps Reflex?

Lack of contraction or response in the biceps muscle Signup and view all the answers

What is the response of the abdominal muscles in a normal abdominal reflex?

Contraction or movement of the abdominal muscles Signup and view all the answers

What is the significance of Kernig's Sign?

Indication of possible meningitis or irritation of the meninges Signup and view all the answers

What is the response of the scrotum in a normal cremasteric reflex?

Elevation or contraction of the scrotum Signup and view all the answers

What is the significance of Brudzinski's Sign?

Indication of possible meningitis or irritation of the meninges Signup and view all the answers

What is the response of the anal sphincter in a normal anal reflex?

Contraction or movement of the anal sphincter Signup and view all the answers

Study Notes

Reflexes and Signs

Biceps Reflex (C5-C6): Contraction of the biceps muscle in response to tapping the biceps tendon.
Absent Biceps Reflex: Lack of contraction or response in the biceps muscle.

Triceps Reflex

Triceps Reflex (C7-C8): Contraction of the triceps muscle in response to tapping the triceps tendon.
Absent Triceps Reflex: Lack of contraction or response in the triceps muscle.

Brachioradialis Reflex

Brachioradialis Reflex (C5-C6): Contraction of the brachioradialis muscle in response to tapping the brachioradialis tendon.
Absent Brachioradialis Reflex: Lack of contraction or response in the brachioradialis muscle.

Patellar Reflex

Patellar Reflex (L2-L4): Contraction of the quadriceps muscle in response to tapping the patellar tendon.
Absent Patellar Reflex: Lack of contraction or response in the quadriceps muscle.

Achilles Tendon Reflex

Achilles Tendon Reflex (S1-S2): Contraction of the calf muscles in response to tapping the Achilles tendon.
Absent Achilles Tendon Reflex: Lack of contraction or response in the calf muscles.

Babinski Sign

Babinski Sign: Abnormal upward movement or extension of the big toe and fanning of the other toes in response to stimulation of the sole of the foot, indicating an upper motor neuron lesion.

Abdominal Reflex

Abdominal Reflex: Contraction or movement of the abdominal muscles in response to stroking or tapping the skin in a specific abdominal region.
Absent Abdominal Reflex: Lack of contraction or movement in the abdominal muscles.

Cremasteric Reflex

Cremasteric Reflex: Elevation or contraction of the scrotum in response to stroking or tapping the inner thigh.
Absent Cremasteric Reflex: Lack of elevation or contraction in the scrotum.

Anal Reflex

Anal Reflex: Contraction or movement of the anal sphincter in response to stimulation of the anal region.
Absent Anal Reflex: Lack of contraction or movement in the anal sphincter.

Meningeal Signs

Kernig's Sign: Resistance or pain in the hamstrings when attempting to extend the knee with the hip flexed at a right angle, indicating possible meningitis or irritation of the meninges.
Brudzinski's Sign: Involuntary flexion of the hips and knees when attempting to flex the neck, indicating possible meningitis or irritation of the meninges.