Chapter 3.4-3.6 Flashcards
The gray matter in the spinal cord is composed of what?
Cell bodies and unmyelinated axons
The spinal cord is composed of two colored matters what are they?
White and gray
The white matter in the spinal cord is composed of what?
Myelinated axons
Dorsal root axons in the white matter of the spinal cord is afferent or efferent, has what type of neurons, and synapse with?
Afferent (sensory), unipolar, dorsal horns of the spinal cord
Ventral root axons in the white matter of the spinal cord are afferent or efferent, has what type of neurons, and synapse with?
Efferent (motor), multipolar, automatic: neurons that in turn project to internal organs and somatic: skeletal muscles
Which structures are in the brainstem?
Mesencephalon, metencephalon, myelincephalon
Which structures are in the forebrain?
Telencephalon
Which structures are in the midbrain?
Mesencephalon
Which structures are in the hindbrain?
Metencephalon, mylincephalon
What part of the brain is the thalamus found?
In the diencephalon
What are some nuclei composing the thalamus?
Contains many nuclei including lateral geniculate, medial geniculate, and ventral posterior
Define fissure
Large furrows in a convoluted cortex
Define gyri
The ridges between fissures and sulci
Define commissures
Hemisphere connecting tracts
What’s the function of the frontal lobe?
Complex cognitive functions (personality), motor functions
