Anatomy test 3 Flashcards
the central nervous system consists of the
brain and spinal cord
“fight or flight” situations are dominated by the
sympathetic NS
the supporting and the connecting cell of the nervous systems are
neuroglial cells
the small space between the neurons is called the
synaptic cleft
the protective coverings of the brain and spinal cord are
meninges
the substances released as axonal endings to propagate a nervous impulse is called the
neurotransmitter
the autonomic NS is divided into the
sympathetic and parasympathetic
synaptic vesicles store
neurotransmitters
the numbers of pairs of spinal nerves are
31
neurons that have one main dendrite and one axon are called
bipolar
gaps in the myelin sheath in the PNS are called
nodes of Ranvier
the function of Schwann cells is to
produce myelin
the branch of a neuron that carries a nerve impulse away from the cell body is the
axon
ion channels open and close due to the presence of
gates
afferent fibers conduct nerve impulses from
peripheral receptors
the spinal cord is continuous with the
brain
autonomic visceral reflexes involve
heart rate, BP
fine control of body coordination and balance is a function of the
cerebellum
the brainstem is made up of the
- midbrain
- pons
- medulla oblongata
cerebrospinal fluid NEVER has
blood/red blood cells
damage to the cerebellum would result in
loss of motor skills
weak muscles, slurred speech
the reticular activating system functions to
control wakefulness
when you sleep and wake up when you hear the baby cry or a burglar
the hypothalamus controls
- heart rate
- BP
- temperature
- weight
- hunger
- reproduction
- sleep
- growth
the cerebral hemispheres are connected internally by the
corpus collosum
damage to the cribriform plate of the ethmoidbone owuld most likely result in the loss of
smell
midbrain
- auditory
2. visual reflexes