quizziz

brain waves Alpha = Beta = Theta = tired- just asleep Delta =

awake buzzed, very awake tired- just asleep deeply asleep

nerve fiber is a

axon

association fibers

between gyri in same hemisphere

CNS consists of

brain and spinal cord

cell bodies of parasympathetic preganglionic neurons are located in

brainstem

ventral horn

efferent nuclei of somatic motor neurons

astrocyte

glial cell that forms blood brain barrier

Oligodendrocytes

glial cell that wraps axons in myelin sheath. analogous to Schwann cells of the PNS.

ependymal cells

glial cells that make CSF

cephalic region

head and neck

temporal lobe

hearing smell language

sympathetic increases or decreases everything, parasympathetic increases or decreases everything

increase, decrease

blood is delivered to the brain by the

internal cartoid and basilar arteries

order the flow of CSF through brain ventricles (top to bottom)

lateral ventricles-> interventricular foramen-> third ventricle-> fourth ventricle

the vagus nerve supplies organs...

literally everywhere

do women or men have a larger corpus callosum

women, they can multitask

can axons be repaired in the PNS

yes

synaptic ganglia

(where neurons meet) Sympathetic and parasympathetic

lateral horn

ANS preganglionic nuclei

Amyotrophic Lateral Sclerosis

Neuromuscular condition, destruction of ventral horn, motor neurons, and fibers of the pyramidal tract

genital engorgement and digestion is an example of

PSNS

Parasympathetic ganglia are known as:

terminal ganglia

dorsal horn

afferent nuclei of interneurons

paravertebral ganglia

aka sympathetic chain ganglia, form chain that runs along vertebral column

commissural fibers

allow communication from one hemisphere to another

gaba and glutamene

amino acids, gaba inhibitory, glutamene excitatory

This type of lens is given to those who have myopia.

concave

projection fibers

connect cerebral cortex to lower CNS

perineurium epineurium and endoneurium

covers... fasicles of nerves entire nerve nerve fiber

PNS consists of

cranial and spinal nerves

this contains nuclei that serve as relay stations for all sensory impulses

thalamus

Effects triggered by cholinergic neurons typically are (____longer or shorter__) lasting than those triggered by adrenergic neurons

longer

RAS is responsible for what?

maintaining consciousness and awakeness

the cerebellum is responsible for what?

maintenance of normal muscle tone, posture, and balance

reticulospinal tract

maintenance of posture

the brainstem contains what 4 things

medulla, pons, midbrain, reticular activating system

sensory receptors transmit which information

modality intensity location duration

ventral rami form

nerve plexuses

Unipolar, multipolar, bipolar neurons

only for sensory most common in body found in retina

depolarization of action potential

opening of sodium channels

Noiceptors

pain receptors respond to tissue injury/potentially damaging situations

spinothalamic

pathway carrying pain and temperature impulses

microglia

phagocytes

what major nerve comes off of cervical plexus

phrenic nerve

lipofuscin

pigment created by lysosomes when they digest worn out organelles

ependymal cells

produce CSF

adrenergic neurons

release norepinephrine

mechanoreceptors

respond to physical deformation

mixed nerves contain

sensory and motor fibers

babinski reflex

shows abnormalities in motor control pathways leading from cerebral cortex

dorsal rami

spinal nerve supplies nerves to muscles on back and skin

2 types of brain bleed

subdural and epidural

ANS consists of

sympathetic and parasympathetic

The communicating rami connects with the

sympathetic chain ganglia

the order of membrane vibration in the ear is

tympanic, basilar, tectorial

which are the only cranial nerves to extend beyond the cephalic region

vagus nerve X