Lab 1
What are the 4 types of neurons
Multipolar, Bipolar, unipolar, anaxonic
Sites of Drug administration
epidural, subdural, subarachnoid
2 divisions of the peripheral nervous system
autonomic and somatic nervous system
3 meninges
Dura mater, arachnoid mater, pia mater
two regions of the adrenal gland
adrenal cortex and adrenal medulla
three aspects of the spinal cord?
white matter, gray matter, central canal
components of reflex arc (IN ORDER)
sensory receptor, sensory neuron, integrating center, motor neuron, effector
two filaments of muscle fibers
actin and myosin
two neurons of the PNS
Motor and sensory
what hormone do the ovaries produce
estrogen
where are astrocytes and satellite cells present?
astrocytes- present in the CNS
satellite cells- present in the PNS
two types of connective tissue
spinal meninges
acronym for the PNS
Salivation
Lacrimation
Urination
Digestion
Defecation
4 lobes of the brain
frontal, parietal, occipital, temporal
Two lobes of the pituitary gland
anterior lobe- adenohypopsis
posterior lobe- neurohypopsis
Define neuroglia
special supporting cells that protect, support and insulate the more delicate neurons.
White/Gray matter in spinal cord and brain
In the brain- gray is the outer portion, white is the inner portion
in the spinal cord- gray is the inner portion and white is the outer portion.
what happens at neuromuscular junctions?
a motor neuron communicates with a muscle fiber, allowing for muscle contraction.
function of cerebrospinal fluid
Surrounds and cushions the brain and spinal cord, washing out waste and impurities and delivering nutrients.
Two aspects in the pancreas histology
pancreatic acini, islets of langerhans
what is the action potential? Name all the steps and what takes place in each step
Resting potential- the neuron is negatively charged with potassium ions in the neuron and positively charged sodim ions outside the neuron.
Depolarization- sodium channels open up and positively charged ions pass through the axon
Repolarization- sodium channels begins to close and potassium channels open up, restoring the negative charge.
Hyperpolarization- when potassium channels remain open for a longer period of time. causing the potential to dip below the threshold
Monosynaptic reflex
A rapid, involuntary response involving a direct connection between a sensory neuron and a motor neuron, with only one synapse in between.
involves a glandular or non-skeletal muscular response carried out in internal organs
nemonic for cranial nerves, name all the cranial nerves as well
On occasions our trusty truck acts funny, very good vehicle any how.
olfactory, oculomotor, optic, trochlear, trigeminal, abducens, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal
3 adrenal cortex layers
Zona Glomerulosa, zona faciculata, zona reticularis