Proprioception

Question 1

Un-concious proprioception pathway projects into the _____________.

Answer 1

Un-concious proprioception pathway projects into the cerebellum.

Question 2

_________ receptors detect changes in muscle length

Answer 2

Muscle Spindle receptors detect changes in muscle length

Question 3

Clinical signs of proprioceptive defects

Answer 3

Ataxia

Knucking over, dragging toes

Failure of CP tests

Question 4

Describe the Trigeminal Pathway

Answer 4

Trigeminal nucleus to principal nucleus

Principal nucleus (Deccussation) to medial lemniscus

Medial lemniscus to VCM

VCM to cortex

Question 5

Two pathways of concious proprioception

Answer 5

Dorsal Column-Medial Lemniscus (DCML) Pathway

Trigeminal Pathway

Question 6

Concious proprioception tests

Answer 6

Proprioceptive positioning

Wheelbarrowing

Hopping

Hemistanding/hemiwalking

Placing

Question 7

Concious proprioception pathway terminates in the ___________ of the cerebrum.

Answer 7

Concious proprioception pathway terminates in the Somatesthetic cortex of the cerebrum.

Question 8

Vulnerablity of proprioception pathways to damage is due to

Answer 8

Large Axons

Superficial location on the spinal cord

Question 9

Describe the DCML Pathway

Answer 9

Dorsal Root to fasiculus cuneatus/gracilis

Fasiculus cuneatus/gracilis to nucleus cuneatus/gracilis

Nucleus cuneatus/gracilis (deccussation) to medial lemniscus

Medial lemniscus to VCL

VCL to Cortex

Question 10

____________ receptors detect tension in tendons

Answer 10

Golgi Tendon Organ receptors detect tension in tendons

Question 11

________ receptors detect pressure and stretch in join capsule

Answer 11

Joint receptors detect pressure and stretch in join capsule

Question 12

Skin mechanoreceptors are important in the __________ pathway

Answer 12

Skin mechanoreceptors are important in the DCML pathway

Question 13

_________ ataxia due to a lesion in the vestibular apparatus, vestibular clinical signs can be seen.

Answer 13

Vestibular ataxia due to a lesion in the vestibular apparatus, vestibular clinical signs can be seen.

Question 14

Three kinds of ataxia

Answer 14

Proprioceptive Ataxia

Vestibular Ataxia

Cerebellar Ataxia

Question 15

_____________ is essential for well timed and accurate movements.

Answer 15

Proprioception is essential for well timed and accurate movements.

Question 16

T/F: Proprioception deficits are first effected in injury to spinal cord.

Answer 16

True

Question 17

_________ ataxia due to a lesion in proprioceptive pathway, abnormal posture with paresis clinical signs

Answer 17

Proprioceptive ataxia due to a lesion in proprioceptive pathway, abnormal posture with paresis clinical signs

Question 18

___________ ataxia due to a lesion in the cerebellum, cerebellar clinical signs present.

Answer 18

Cerebellar ataxia due to a lesion in the cerebellum, cerebellar clinical signs present.

Question 19

Describe the progression of deficits that occurs with spinal cord damage

Answer 19

CP → Motor → Superficial Pain → Deep Pain

Question 20

The somatesthetic cortex is located in the ________ lobe of the brain.

Answer 20

The somatesthetic cortex is located in the parietal lobe of the brain.

Question 21

Cuneatus = ______ limb

Answer 21

Cuneatus = thoracic limb

Question 22

Proprioception tracts are _________ located on the spinal cord.

Answer 22

Proprioception tracts are peripherally located on the spinal cord.

_______________________

Damaged first

Question 23

Gracilis = __________ limb

Answer 23

Gracilis = pelvic limb