Sensory Perception - Pathology

Match the following Vision Disorders

• Macular Degeneration

• Secondary Disorder

  Retina separates from underlying structure (sudden onset of floaters or "veil")

• Glaucoma

• Secondary Disorder

  Any disorder leading to retina damage & vision loss

• Cateracts

• Primary Disorder

  Cloudy discoloration of lens (gradual onset)

• Retinopathy

• Primary Disorder

  central part of retina degenerates and results in vision loss

• Retinal Detachment

• Primary Disorder

  Increased intra-ocular pressure (compresses optic nerve)

Which vision disorder cause PAIN to the patient?

• Cataracts

• Glaucoma

Type of Glaucoma that doesn't drain aqueous humor fast enough through the trabecular meshwork.

• Open-Angle

• Closed/Narrow-Angle

Type of Glaucoma that completely blocks aqueous humor drainage from the eye.

(very painful and causes blurred vision with halos)

• Open-Angle

• Closed/Narrow-Angle

Diabetes is a risk factor for which of the following vision disorders?

• Retinopathy

• Cateracts

• Macular degeneration

• Glaucoma

Answer explanation

80% of people who have diabetes mellitus for 10+ years will likely develop Retinopathy

1. ___ macular degeneration is more common and less sever. Loss of central vision (blurry wavy).

2. ___macular generation is severe with new blood vessels form around macula (to compensate for its degenerating) that causes irreversible and quick atrophy of photoreceptors

• 1. Wet

  2. Dry

• 1. Dry

  2. Wet

1. Conductive hearing loss impacts _____

2. Sensorineural hearing loss impacts _____

• 1. Outer/Middle Ear

  2. Inner Ear

• 1. Inner Ear

  2. Outer/Middle Ear

• 1. Inner/Middle Ear

  2. Outer Ear

Match the following

• Presbycusis

  (Sensorineural Loss)

• often in kids b/c they have shorter eustachian tubes that allow bacteria in (painful)

• Otitis media

  (Conductive Loss)

• ear wax blocks sound waves

• Cerumen impaction

  (Conductive Loss)

• hearing loss due to aging

• Ototoxicity

  (Sensorineural Loss)

• Damage to cochlea from medication (aminoglycosides & diruetics)

• Otosclerosis

  (Conductive Loss)

• abnormal bone growth (of stapes)

All spinal cord injuries in the same location of the spine will cause the same amount of nerve loss.

• True

• False

Answer explanation

Nerve loss depends on the type of injury and where it was along the spinal cord.

Types of injuries include:

-Flexion

-Hyperextension

-Compression Fracture

-Flexion-Rotation

Match the following major tracts

• Posterior Column

• Originates in spinal cord ascends to thalamus

  *pain & temp signals

• Corticospinal

• Originates in brain and crosses over in brainstem

  *motor signals

• Spinothalmic

• Posterior horn contains axons from PNS

  *sends vibration & light touch to brain