The Ear
The Brain
Diseases & Disorders
Cells
Action Potential
200
What is the name for the outer ear.
Auricle/pinna.
200
What is the function of the Cerebellum?
Largest part of the brain, conscious thoughts & sensations.
200
What is the disorder characterized by recurrent seizures?
Epilepsy.
200
What cells maintain the blood/brain barrier?
Astrocytes.
200
What is an action potential?
A rapid sequence of changes in the voltage across a membrane.
400
Which number points to the cochlea?
7.
400
What is the function of CSF?
Mechanical protection, chemical protection, circulation, watery cushion for the brain & spinal cord.
400
What disease causes muscle rigidity, tremors, changes in speech and gait.
Parkinson's disease.
400
What cells perform phagocytosis of pathogens and debris in the brain?
Microglia.
400
What is it called when the electrical potential difference across the plasma membrane when the cell is in a non-excited state.
Resting potential.
600
What are the names of the ossicles?
Malleus, incus, and stapes.
600
What does the Diencephalon include?
Thalamus & Hypothalamus.
600
What is the autoimmune disease that attacks the myelin sheath?
Multiple sclerosis.
600
What cells produce myelin sheath in the PNS?
Schwann cells.
600
What happens during hyperpolarization?
Some potassium channels open and the sodium channels reset.
800
What are the structures that connect the middle ear to the back of the throat and help equalize pressure called?
The eustachian tubes.
800
What are the structures responsible for the maintenance and protection of the central Nervous system?
Dura mater, Arachnoid Mater, Pia Mater.
800
What is cerebral palsy and when does it develop?
A condition characterized by loss of muscle control, caused by damage to motor areas of the brain during fetal development, birth or infancy.
800
What cells provide nutrient support and protection in the PNS?
Satellite cells.
800
What happens during depolarization?
When positively charged sodium ions (Na+) suddenly rush through open voltage-gated sodium channels into a neuron.
1000
What are the small fluid filled sacs in the inner ear that help with spatial orientation and balance called?
The semicircular canals.
1000
Name all the lobes in the brain and their functions.
Frontal Lobe: Voluntary movement, expressive language, emotion, reasoning, etc. Parietal Lobe: pain, temperature, pain, understanding speech, processing sensory information. Temporal Lobe: Processing auditory info & encoding of memory. Occipital Lobe: Visual perception.
1000
What is Guillain-Barre syndrome?
An autoimmune disease that causes demyelination of nerves in PNS.
1000
What cells produce myelin sheath in the CNS?
Oligodendrocytes.
1000
Name the 6 events of an action potential in order.
Resting potential, depolarization, repolarization, hyperpolarization, and refractory period.