Exam Flash Cards
Draw a pic of a neuron -
…
where are cell bodies of sensory & motor neurons located -
sensory - take messages from the skin/organs to central nervous system
motor - take messages from the brain to muscles
at depolarization ……. in -
sodium
at repolarization …… out -
potassium
at refactoring ….. -
flip back
where are neurotransmitters made -
in the cell body of a neuron & transported down the axon and stores in vesicles
difference between myelinated and unmyelinated nerves -
myelinated - contain schwann cells that for from myelin sheaths
unmyelinated - lack myelin sheaths bc no schwann cells
Frontal Lobe -
- located in front
- controls abstract thinking
Pariteal Lobe -
- located behind frontal lobe in middle
- interprets sensory info to “feel”
Occipital Lobe -
- on the underside of the skull
- interprets vision
Temporal Lobe -
- located on sides by the temples
- interprets hearing and smell
Brain Stem -
- located before spinal cord
- consists of medulla, pons,midbrain
- allows the neurons travel through it to relay messages
Thalamus -
comes after midbrain
-the actual relay station
Hypothalamus -
exerts major control over nearly all body organs
Pineal Gland -
makes melatonin
Pituitary Gland -
produces hormones to regulate homeosatsis
Cerebellum -
helps maintain equilibrium, posture/coordination
which structure connects the hemispheres -
corupus callosum
the disorder of the brain is degenerative resulting in the destruction of neurons in the brain, genetics play a role, loss of memory and attention -
alzheimers
the disorder of the brain that is generally a stroke, it is the stopping of blood flow through the blood vessels of the cerebrum caused by a blockage -
cerebrovascular accident CVA
this brain disorder is a permanent, non-progressive damage to the motor control areas in the brain, caused by mostly prenatal conditions -
CP - cerebrall palsy
this brain disorder is where the degeneration of neurons results in a decreased amount of dopamine resulting in shaky hands and muscle weakness -
parkinsons
tough meninge containing many many tough fibers -
dura mater
is the cobby web looking meninge composed of elastic fibers and collagen-
arachnoid mater
this meninge is delicate containing blood vessels that adheres directly to the brain and spinal cord -
pia mater
final destination for sight -
ends in the occipital lobe
final destination for sound/hearing -
ends in the temporal lobe
final destination for feeling -
ends in the pariteal lobe
function of the ear -
hearing, balance, and equilibrium
the external ear collects and transmits …… .
sound waves
the middle ear converts and amplifys ………
vibrations
the inner ear is the ….
last structure
the vestibule detects …..
gravity
the semicircular canals detect …..
spinning
the cochlea / organ of corti detect …..
hearing
sound converted to vibrations / sound waves occur where -
in the middle ear
action potential occurs in the ear when …..
3 sections of the inner ear help detect sound, gravity, or spinning - these actions move hair cells causing this action potential
functions of the eyes -
gather light focus light detect color convert image to impulse keep eye moist & no disease
structures of the eyes -
conjunctiva cornea sclera anterior chamber pupil iris ciliary canals of schem lens retina choroid
