Central Nervous System Flashcards
(21 cards)
What does the myelin sheath wrapping around the axon do?
Insulates Faster impulse conduction along the axon Eg: Destruction of the myelin sheath (as in multiple sklerosis) would result in impulses be conducted much slower or not at all.
Movement, behaviour, memory, speech, learning, planning, reasoning is controlled by what lobe in the brain?
frontal
the parietal lobe is responsible for what?
sensory perception
vision is controlled by what lobe?
occipital
hearing, language, taste, smell is controlled by what lobe?
temporal
blood pressure is controlled by the
medulla oblongata
respiratory control is controlled by the
pons and medulla
startle reflexes are controlled by the
midbrain
memory is controlled by the
limbic system
maintaining alertness is controlled by the
reticular formation
balance and posture is controlled by the
cerebellum
protective layers of connective tissue coverings the central nervous system are called?
meninges
The junction between an axon terminal and a muscle is called a:
neuromuscular junction
The dorsal root ganglion:
contains cell bodies of sensory neurons outside the CNS.
Problems in balance may follow injury to which nerve?
vestibularcochlear nerve
In the visual pathway to the brain some of the axons from each optic nerve cross over to the other side in the:
optic chiasma
The structures involved in balance are:
semicircular canals and vestibule
The autonomic nervous system innervates:
smooth and cardiac muscles and glands
The protective outer white layer of the eyeball is the:
sclera
Skeletal muscle is innervated by:
somatic nervous system
