Proprioception

What is the voluntary portion of the nervous system?

Somatic Nervous System

What aspect of the somatic nervous system does proprioception full under?

Somatosensory

1 multiple choice option

What is the body's ability to sense its location in space, movement and actions?

Proprioception

Vestibular input for proprioception is meant for..

-Head position

-Balance

What two parts is body position information transmitted to?

-Cerebellum

-Somatosensory Cortex

Which structure deals with unconscious proprioception?

Cerebellum

1 multiple choice option

Which structure deals with conscious proprioception?

Somatosensory Cortex

1 multiple choice option

What structure utilizes information from proprioceptive input to allow for accurate movement of body position?

Cerebellum

1 multiple choice option

What are the receptors that transmit information relating to mechanical stimuli?

Mechanoreceptors

T/F: Mechanoreceptors send proprioceptive information?

True

1 multiple choice option

What receptors detect joint flexion and extension?

-Ruffini Corpuscles

-Pacinian Corpuscles

What receptors transmit information relating to spatial positioning of the body?

Proprioceptors

Muscle spindles signal...

Stretch

Golgi tendon organs signal...

Tension

What structure recognizes dynamic and static phases of muscle movement via the length (stretch) of the muscle?

Muscle Spindles

Muscle spindles are innervated by their own...

Gamma Motor Neuron

What is the encapsulated afferent nerve ending located at junctions of a muscle and tendon?

Golgi Tendon Organ

Too much stretch leads to a protective reflex called the...

Golgi Tendon Organ Reflex

Signals for proprioception travel via the ascending pathways through what funniculi?

-Dorsal Funiculus

-Lateral Funiculus

Signals for conscious proprioception are interpreted by the...

Somatosensory cortex (Cerebrum)

Before arriving at the somatosensory cortex, signals for conscious proprioception must go through what structure first?

Thalamus

Signals for conscious proprioception are interpreted on the (contralateral/ipsilateral) cortex.

Contralateral

1 multiple choice option

Signals for unconscious proprioception are interpreted by the...

Cerebellum

Signals for unconscious proprioception go the (ispilateral/contralateral) cerebellum.

Ipsilateral

1 multiple choice option

What tracts does unconscious proprioception travel through in order to arrive at the ipsilateral cerebellum?

-Spinocerebellar tract (Lateral Funiculus)

-Spinocuneocerebellar tract (Dorsal Funiculus)

What tracts transmit unconscious proprioceptive information to the cerebellum from the thoracic limb?

-Spinocuneocerebellar Tract

-Cranial Spinocerebellar

The Spinocuneocerebellar Tract travels through the which funiculus?

Dorsal Funiculus

2 multiple choice options

Which tract transmits unconscious proprioceptive information to the cerebellum from the pelvic limbs?

Spinocerebellar Tract (Dorsal & Ventral tracts)

All of the Spinocerebellar tracts travel through what funiculus?

Lateral Funiculus

2 multiple choice options

Cerebellar lesions may lead to (contralateral/ipsilateral) proprioceptive deficits.

Ipsilateral

1 multiple choice option

Unilateral spinocerebellar tract damage results in (ipsilateral/contralateral) proprioceptive deficits

Ipsilateral

1 multiple choice option

What tract transmits conscious proprioceptive information to the cerebrum from the trunk and pelvic limbs?

Fasciculus gracilis

1 multiple choice option

What funiculus does the Fasciculus gracilis travel through?

Dorsal

2 multiple choice options

What tract transmits conscious proprioceptive information to the cerebrum from the thoracic limbs?

Fasciculus cuneatus

1 multiple choice option

What funiculus does the Fasciculus cuneatus travel through?

Dorsal

2 multiple choice options

T/F: Both the Fasciculus cuneatus and Fasciculus gracilis travel through the dorsal funiculus.

True

1 multiple choice option

What is the first thing that is lost when spinal cord compression is present?

Proprioception

2 multiple choice options

What is the last thing that is lost when spinal cord compression is present?

Conscious Pain Sensation

2 multiple choice options

Dogs who are deep pain negative has a...

Severe spinal cord compression

What has the largest axons in the spinal cord?

Somatosensory Proprioception

What has the smallest axon in the spinal cord?

Nocioception

Damage to what structures can lead to postural reaction deficits?

-Ascending tract

-Descending tract

-Cortex

What test is used for assessing proprioceptive placing?

-Paw Replacement Test

What tests are used to asses postural reactions?

-Wheel barrel

-Hopping

-Hemi-walking

If there is a lesion in the left cerebrum, you would see proprioceptive deficits in the...

Right thoracic and right pelvic limb

3 multiple choice options

If there is a lesion in the right cerebrum, you would see proprioceptive deficits in the...

Left thoracic and left pelvic limb

3 multiple choice options

If there is a lesion in the right brainstem, you would see proprioceptive deficits in the...

Right thoracic and right pelvic limb

3 multiple choice options

If there is a lesion in the left brainstem, you would see proprioceptive deficits in the...

Left thoracic and left pelvic limb

3 multiple choice options

If there is a lesion in the right cerebellum, you would see proprioceptive deficits in the...

Right thoracic and right pelvic limb

3 multiple choice options

If there is a lesion in the left cerebellum, you would see proprioceptive deficits in the...

Left thoracic and left pelvic limb

3 multiple choice options

If there is a lesion in the right C1-C5 and C6-T2 region, you would see proprioceptive deficits in the...

Right thoracic and right pelvic limb

3 multiple choice options

If there is a lesion in the left C1-C5 and C6-T2 region, you would see proprioceptive deficits in the...

Left thoracic and left pelvic limb

3 multiple choice options

If there is a lesion in the right T3-L3 and L4-S1 region, you would see proprioceptive deficits in the...

Right Pelvic Limb

3 multiple choice options

If there is a lesion in the left T3-L3 and L4-S1 region, you would see proprioceptive deficits in the...

Left Pelvic Limb

3 multiple choice options

If there is a lesion in the right S1-S3, would you notice proprioception deficits in any limbs?

No

1 multiple choice option