Planes & Tissues
This cut divides the brain into left and right
What is sagittal
Define synapse.
What is a space
____ cells support and protect. (HINT: myelin is formed by these cells)
What is Glial Cells
The neuron at rest has a ____ charge
What is negative
Three levels of the brainstem.
What is midbrain(highest), pons(middle), medulla(lowest)
This cut divides the brain into front and back
What is coronal
Between origin and insertion, which involves least movement/most movement?
Origin=least movement, Insertion=most movement
The surface of the brain is ____(therefore it appears this color) while the inside is ____
What is gray matter, white matter
A spike in the action potential occurs when which channels open on the membrane of the neuron?
What is Sodium (Na)
*reaching -55
How many pairs of cranial nerves are there?
What is 12 pairs
Which tissues main function is supporting?
What is connective tissue
What are the three main fiber tracts? Describe them.
Association=same hemisphere, Commissural=between hemispheres, Projection=projects, moves far
This is the final relay station for sensory information to the cortex.
What is thalamus
What term is used to describe the space in between myelin sheath?
What is Nodes of Ranvier
What is the difference between gyri and sulci?
Gyri=bumps/ridges on the brain's surface, Sulci=grooves/indentations
Which tissues main function is protection?
What is epithelial tissue
When speaking, the brain is sending signals to the mouth to tell the mouth to speak. What kind of signals are being sent?
What is efferent (motor information)
The basal ganglia is responsible for ___ & ___.
What is background movement & movement patterns.
Neurotransmitters can be...
Excitatory, Modulatory, Inhibitory
What two areas of the brain are crucial for language production and comprehension?
What is Broca's area and Wernicke's Area
This tissues main function is contraction.
What is muscle tissue
Joints are classifies by movement! 1)___ don't move/fixed, 2)___ some movement, 3)___ lots of movement
What is 1)fibrous, 2)cartilaginous, 3)synovial
Name the three main functions of cerebrospinal fluid.
What is protection, bringing in nutrients, and taking out waste
The sodium/potassium pump transports (how many)NA ions ___ of the cell and (how many)K ions ___ the cell.
What is 3 Na ions OUT and 2 K ions INTO
Name each layer of the meninges and describe them.
What is dura mater(outermost), arachnoid mater(contains cerebrospinal fluid/middle layer), pia mater(adheres/contians blood vessels)