Introduction Flashcards
True or false, the cranial nerves are purely sensory?
False, they can be both motor and sensory
What innervates dermatomes (be specific)?
Bilateral pair of dorsal root ganglia
Where does the CSF sit in relation to the meninges?
Subarachnoid space
Generally, what is the function of the cerebellum?
Refines the execution of motor programs from the cerebral cortex
What is the major role of the thalamus?
Sensory relay
What is present in the dorsal root ganglia?
Cell bodies for sensory nerves
What runs in ventral root of spinal nerves?
Efferent motor axons whose cell bodies lie in the ventral horn of the spinal cord
How many enlargements of the spinal cord are there?
2 - cervical and lumbar
What are the three layers of the meninges, from outside in?
Dura
Arachnoid
Pia
What are the grooves in the brain called?
Sulcus/Sulci
What is the major role of the hypothalamus?
Maintains homeostasis
Controls the pituitary gland
Where does the CSF flow out of the ventricles?
At the fourth ventricle
What command do axons in the ventral root of spinal nerves give?
Motor - contraction of skeletal muscle
What type of information is dealt with in the dorsal root of the spinal cord?
Sensory
What are the ridges in the brain called?
Gyrus/Gyri
What is the most important role of the basal ganglia?
Motor control
What structures make up the brainstem?
Mid brain
Pons
Medulla
What are the four lobes of the cerebral cortex?
Frontal
Parietal
Temporal
Occipital
Which part of the brain is responsible for higher functions in humans (eg consciousness)
The cerebrum
What are the major roles of the brainstem?
Cardiorespiratory control
Arousal/wakefulness/sleep cycle
What information in carried by axons in the dorsal root of spinal nerves?
Afferent sensory information
Where is the grey matter in the spinal cord?
Internal, surrounded by white matter
At what level does the spinal cord end?
L1/2
What is the name of the space that runs between the two hemispheres of the brain?
Horizontal fissure
What is the name of the thin layer of cortex on the exterior of the cerebrum?
Cerebral cortex
