Shared Flashcard Set

Details

Human Anatomy
Neural Tissue
43
Biology
Undergraduate 2
04/09/2009

Additional Biology Flashcards

 


 

Cards

Term
fasciculus gracilis
Definition
the spinal tract that carries sensory information concerning fine touch and pressure.
Term
posterior spinocerebellar
Definition
the spinal tract that relays information from prprioceptors to the CNS
Term
lateral spinothalamic
Definition
the spinal tract that relays information concerning pain and temperature to the CNS
Term
anterior spinothalamic
Definition
the spinal tract that relays information concerning crude touch and pressure
Term
anterior corticospinal
Definition
the spinal tract that regulates voluntary motor control of skeletal muscles on the same side of the body is the ______________ tract.
Term
neurons in the anterior horns of the spinal cord
Definition
axons of the corticopinal tract synapse at the motor...
Term
corticospinal tract
Definition
the pyramids on the surface of the medulla are formed by fibers of the
Term
lateral corticospinal tracts
Definition
axons that dcussate in the region of the pyramids of the medulla form the
Term
activate a response
Definition
the effects produced by the extrapyramidal system on lower motor neurons can be all of the following except to...
Term
The cerebral nuclei
Definition
provide a background pattern and rhythm for movement
Term
upper motor neurons
Definition
motor neurons whose cell bodies lie in the CNS processing center are called
Term
spinal cord
Definition
the simplest reflexes are mediated at the level of the
Term
a sensation in the leg
Definition
stimulation of a neuron that terminates in the superior portion of the left postcentral gyrus would produce.
Term
motor function on the opposite side from the damage.
Definition
Some the fibers that form the lateral spinothalamic tracts are damaged before they decussate at the medulla. This type of damage would affect...
Term
splanchnic nerves
Definition
carry fibers that synapse in collateral ganglia.
Term
inferior mesenteric ganglion
Definition
sympathetic innervation of the urinary bladder an sex organs is by way of..
Term
release of intracellurlar calcium stores
Definition
stimulation of alpha-1 receptors by norepinephrine would result in..
Term
alpha-1
Definition
stimulation of what type of membrane receptor by norepinephrine would activate enzymes that break down glycogen in skeletal muscles.
Term
parasympathomimetic
Definition
drugs that target muscarinic receptors are
Term
intramural ganglia
Definition
preganglionic fibers of parasympathetic nerves synapse on neurons
Term
dilate the right pupil
Definition
damage to the ventral roots of the first five thoracic spinal nerves on the right side of the body would interfere with the ability to
Term
muscarinic
Definition
a certain drug decreases heart rate by producing hyperpolarization at the membrane to the pacemaker cells of the heart. This drug binds to _______ receptors.
Term
line over which sensory information arrives
Definition
the cns intereprets information entirely on the basis of the
Term
nociceptors
Definition
usually have large receptive fields
Term
Ruffini corpuscles
Definition
a tactile receptor is composed of a capsule that surrounds a core of collage fibers.
Term
Merkel's disc
Definition
a tactile receptor composed of dendritic processes of a single mylinated fiber that makes contadct with unusually large epithelial cells of the stratum geminativum
Term
neural tunic
Definition
contains the photoreceptor cells
Term
cornea
Definition
in the human eye the greatest amount of refraction occurs when light passes from the air into the cornea
Term
produces a depolarization of the membrane
Definition
displacement of stereocilia toward the kinocilium of a hair cell
Term
when the stereocilia of the hair cell are displaced toward the kinocilium
Definition
the quantity of neurotranmitter that is released by a hair cell inot the synapse with a sensory neuron increases
Term
see color
Definition
damage to the fovea of the eye would interefere with the ability to see color
Term
the intracellular level of cGMP decreases
Definition
when a rod is stimulated by light
Term
visual receptors are much LESS sensitive to stimulation
Definition
in the light adapted state
Term
convex lens
Definition
how is myopia (near sightedness) corrected
Term
gray comissures
Definition
axons crossing from one side of the spinal cord to the other within the gray matter are found in
Term
pia mater
Definition
the layer of the meninges that is tightly bound to the surface of the neural tissue is the
Term
incoming sensory information would be disrupted
Definition
If the dorsal root of a spinal nerve is severed.
Term
an increase in action potentials along the associated senesory neuron
Definition
stretching the nuclear bag of an itrafusal fiber results in.
Term
longitudinal fissure
Definition
the two cerebral hemispheres are separated by the
Term
lateral sulcus
Definition
the inferior border of the frontal lobe is marked by the
Term
temporal lobe
Definition
the cortex inferior to the lateral sulcus is the
Term
cerebellar cortex
Definition
contains highly branch Pukinje cells
Term
hypoglossal
Definition
nerves associated with tongue movement.
Supporting users have an ad free experience!