Bells Palsy and Stroke

Dr. Morton discusses the anatomy and function of the facial nerve, its role in facial expression, and conditions like Bell's palsy and stroke. The video explains the pathways of upper and lower motor neurons, the impact of lesions, and the FAST acronym for stroke detection. Personal reflections on stroke experiences are shared.

What is the primary role of the facial nerve?

• Innervating the muscles of mastication

• Controlling the sense of smell

• Regulating blood pressure

• Facilitating facial expressions

Which muscle is NOT innervated by the facial nerve?

• Orbicularis oculi

• Temporalis

• Zygomaticus

• Orbicularis oris

What condition is characterized by paralysis of ipsilateral facial muscles?

• Multiple sclerosis

• Bell's palsy

• Alzheimer's disease

• Parkinson's disease

What is the exception in the innervation of the forehead by upper motor neurons?

• It receives no innervation

• It receives both contralateral and ipsilateral innervation

• It receives only ipsilateral innervation

• It receives only contralateral innervation

What does the acronym FAST stand for in stroke detection?

• Face, Arm, Speech, Time

• Feet, Ankle, Speech, Time

• Face, Arm, Strength, Time

• Feet, Arm, Speech, Time

What is the result of a supranuclear lesion in a stroke?

• No effect on facial muscles

• Complete facial paralysis

• Contralateral facial muscle paralysis with forehead sparing

• Ipsilateral facial muscle paralysis with forehead sparing

Which side of the face is affected in a stroke if the lesion is on the right side?

• Left side with forehead sparing

• Right side with forehead sparing

• Right side with complete paralysis

• Left side with complete paralysis

What is the primary function of the motor homunculus?

• To organize motor control in the cerebral cortex

• To control sensory input

• To regulate blood flow

• To manage emotional responses

What personal experience did Dr. Morton share about strokes?

• His own experience with Bell's palsy

• His mother's experience with multiple strokes

• His father's experience with heart disease

• His sister's experience with cancer

What role do physical therapists play in stroke recovery?

• They prescribe medication

• They help patients regain mobility

• They assist with speech therapy

• They perform surgeries