Action Potential
An action potential is caused by an influx of ________ ions into the cell.
What are sodium ions?
The part of the brain that controls balance and skeletal muscle coordination
What is the cerebellum?
Also known as a stroke
What is a cerebrovascular accident (CVA)?
The number of cranial nerves?
What are 12?
The 4 lobes of the cerebrum
What are parietal, temporal, frontal, and occipital?
Immediately after an action potential is propagated, this ion rapidly diffuses out of the cell into the tissue fluid
What are potassium ions?
The motor cortex and sensory cortex are separated by this sulcus that divides these lobes
What is the central sulcus which divides the frontal and parietal lobes?
Damage to Broca's area could cause this
What is an aphasia? (motor aphasia)
The nerves that enter the dorsal horns and the nerves that extend from the ventral horns respectively
What are afferent (sensory) and efferent (motor) nerves?
Functional nervous system division that carries information from the central nervous system toward effectors
What is the Motor (efferent) division?
Impulse conduction is faster in this type of neuron
What is myelinated?
The part of the cerebrum that deals with speech and the ability to say words properly
What is Broca's area?
Brain injury in which brain injury is slight and typically no permanent damage occurs
What is a concussion?
Composed of the cranial and spinal nerves
What is the PNS?
Functional nervous system subdivision that carries information toward the central nervous system from receptors
What is the sensory (afferent) division?
The ions moved out of the cell during repolarization
What are potassium ions?
The part of the brain stem that houses reflex centers for vision and hearing?
What is the midbrain?
Severe brain stem contusions always result in _________ which can last from hours to a lifetime
What is a coma?
The division of the autonomic nervous system is often called the "rest-and-digest" division
What is the parasympathetic division?
Contains centers that control heart rate, blood pressure, breathing, swallowing, and vomiting
What is the medulla oblongata?
The term for the state of rest.
What are sodium ions?
What is polarized?
What is the hypothalamus?
The type of brain injury in which brain tissue is marked for destruction.
The term for swelling of the brain
What is a contusion?
What is cerebral edema?
The nervous system subdivision composed of a chain of two motor neurons consisting of a preganglionic neuron and a postganglionic neuron
What is the ANS?
Gland that hangs from the hypothalamus
What is the pituitary gland?