Neuron Structure
The ____ are the building blocks of the brain.
What is a neuron?
Powerful magnetic fields and radio waves excite hydrogen nuclei. Produces highly detailed images in any plane, without ionizing radiation.
What is an MRI?
The four major lobes are the following
What is the frontal lobe, temporal lobe, occipital lobe, and parietal lobe?
This lobe deals with planning, decisions, and movement
What is the frontal lobe?
The major parts of the neuron
what is cell body (soma), dendrites, and axon?
An insulating cover wrapped around axons that protects and speeds up the transmission of neural impulses.
what is myelin?
Wilder Penfield
This specific lobe works with your eyesight
What is the occipital lobe?
This hemisphere is relatively more concerned with imagination, art, feelings, and controls the left side of the body.
What is the right hemisphere?
The largest part of the brain
what is the cerebrum?
All nervous tissue outside the CNS carries sensory info to the CNS and motor info away from the CNS. Has two main divisions: somatic nervous system and autonomic nervous system.
What is the peripheral nervous system?
An accidental explosion drove a 43-inch iron rod through his left frontal lobe. He survived but colleagues insisted he was "no longer himself."
Who was Phineas Gage?
This hemisphere contains most language functions and is more involved in logical problem solving.
What is the left hemisphere?
Contains major pathways and cranial nerve nuclei. Coordinates movement, attention, regulates sleep, and alertness.
What is pons?
The three main types of neurons
what is sensory, motor, and interneuron ?
Is the junction between the axon terminals of one neuron and the dendrites of another.
What is synapse?
Used Golgi's stain to describe neuron structure in exquisite detail and proved neurons are discrete cells, not a continuous web.
Who were Santiago Ramón and Cajal?
Difficulty forming new memories
What is the temporal lobe?
Separates the left and right hemispheres.
Deep grooves separating regions
What is the longitudinal fissure?
consist of the brain and spinal cord; processes and coordinates all neural information.
what is the central nervous system?
Regulates motor control, attention, and learning.
What is dopamine?
Damage or destruction of brain tissue, natural or induced, used to observe how function changes when a region goes offline.
What is a lesion?
Controls homeostasis, drives, and the endocrine system
What is the hypothalamus?
Relay station for sensory stimulation such as visual, auditory, and somatosensory information to the cortex. Latin for inner chamber*
What is the thalamus?
Deals with the hippocampus (temporal lobe), amygadala (limibic system, which links memories to emotions) and the prefrontal cortex which allows us to retrieve and use that information.
Memory formation