Science teastez Flashcards
place where bones meet
joints
joint between your fingers and hand
ellipsoid joint
allows motion in a single plane
hinge joint
inflimation of the joints
arthiritus
muscles that you don’t have concious control of
involountary muscles
muscle cells in the heart
cardiac cells
cells in the invoulntary muscles
smooth cells
allows you to close your jaw
masseter
either of a pair of large triangular muscles extending over the back of the neck and shoulders and moving the head and shoulder blade
trapezius
allows you to sit up
erectus abdominus
the chief muscle of the calf of the leg, which flexes the knee and foot. It runs to the Achilles tendon from two heads attached to the femur.
gastric nemus
tough 3 layered sheet that protects muscles
epimesium
one motor neuron and all of the muscle fibers it innervates
motor unit
made up of the brain and spinal cord
central nervous system
three membrane layers that cover and protect your brain and spinal cord
meninges
supports and insulates cells
gliale cells
made up of a large network of nerve fibers (axons) in your brain that allows the exchange of information and communication between different areas of your brain
white matter
place where the processing of sensation, perception, voluntary movement, learning, speech and cognition takes place
gray matter
selective semi-permeable membrane between the blood and the interstitium of the brain
blood brain barrier
infection of the meninges
meningitis
attacks spinal cord and can cause paralasis
polio
controls invouluntary functions
autonomic nervous system
cells that rarely reproduce
neurons
disease that attacks the gilale cells
MS
enclosed junction between two neurons
synapse
tremors or shaking
parkinsins
the largest part of your brain, managing all of your conscious thoughts, actions and input from your senses.
cerebrum
controls left and right side of the brain
corpus collasum
controls skeletal muscle
motor area
early damage to the motor area
cerebral palsy
handles complicated muscle cordination
cerebellum
controls many vital functions, such as breathing, heart rate, and blood pressure, and the nerves and muscles used in seeing, hearing, walking, talking, and eating
brain stem
responsible for physical effects of emotion
hypothalamus
most common disease or negative occurence in the nervous system
stroke
selectively activated by mechanical, thermal, or chemical stimuli that open sodium channels and elicit axonal depolarization
pain receptors
the first cranial nerve (CN I) ,enables your sense of smell
olfactory nerve
bone carrying sound of the voice
bone conduction
nerve of the eye
optic nerve
a layer of photoreceptors cells and glial cells within the eye that captures incoming photons and transmits them along neuronal pathways as both electrical and chemical signals for the brain to perceive a visual picture
retina
area of clearest vision
fovia
responsible for vision at low light levels
rods
active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity
cones
active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity
stigmatism
a group of eye diseases that can cause vision loss and blindness by damaging a nerve in the back of your eye called the optic nerve
glacoma
