Anatomy Lab Final

What do we call the period during which initiation of an action potential requires a higher than normal threshold stimulus?
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What do we call the period during which initiation of an action potential requires a higher than normal threshold stimulus?
relative refractory period
What fluid fills the scala tympani?
perilymph
What do we call neuronal processes that transmit membrane potentials away from the neuronal cell body?
axons
What do we call neuronal processes that carry receptors for neurotransmitters and that transmit membrane potentials toward the neuronal cell body?
dendrites
Depolarization is the result of the rapid entry of which ion into the cell?
sodium
In the PhysioEx exercise, what was the effect of lidocaine on the nerve?
inhibition
What type of glial cell is responsible for myelinating axons in the central nervous system?
oligodendrocyte
What is the smallest stimulus that is capable of initiating an action potential called?
threshold stimulus
In the PhysioEx exercise, what was the effect of curare on the nerve?
none
What fluid fills the scala vestibuli?
perilymph
What are clusters of neuronal cell bodies in the peripheral nervous system called?gangliaA plane of section that runs perpendicular to the long axis of the body and divides it into superior and inferior portions is called a [x1] section.transverse, crossWhat minute, finger-like projections of the cell membrane serve to increase the surface area of the cell for absorption?microvilliWhat is the membrane that surrounds the internal contents of the cell and provides a boundary between the external environment and the internal cell environment?plasma membraneIf you are using an objective lens with a power of 40X and ocular lenses with a power of 10X, the total magnification of the specimen will be [x1]X.400Identify one location in the body where dense irregular connective tissue is found.dermis of skinIdentify one location in the body where dense regular connective tissue is found.tendonsIdentify one location in the body where fibrous cartilage is found.knee jointThe shoulder is [x1] to the elbow.proximalIf an epithelial tissue is more than one cell layer thick, it is classified as a ___________ epithelium.stratifiedWhich objective lens has the greater depth of field: 4X or 40X?4xIdentify one location in the body where smooth muscle tissue is foundwalls of hollow organs, eyes, skinDNA replication occurs during which phase of the cell cycle?interphase (S period)The nuclear membrane reforms during which phase of mitosis?telophaseWhat do we call a muscular tissue in which the cells are non-striated, uninucleate, and spindle shapedsmooth muscle tissueName two criteria by which connective tissues are classified?cell type, matrix composition, protein fiber type, arrangement of protein fibersIdentify one location in the body where transitional epithelium is found.urinary bladder, ureters, part of urethraIdentify one location in the body where simple cuboidal epithelium is foundkidney tubules, ducts of glands, ovarian surfaceIdentify one location in the body where stratified columnar epithelium is found.male urethra, large ducts of some glandsWhat do we call a dense connective tissue containing an amorphous matrix and populated primarily by chondrocytes?hyaline cartilageWhat do we call a dense connective tissue containing collagen fibers in bundles arranged in many directions and populated primarily by fibroblasts?dense irregular connective tissueWhat do we call a dense connective tissue containing a fluid matrix and populated primarily by erythrocytes and leukocytes?bloodThe nose is [x1] to the ears.medialThe distance between the bottom of the objective lens and the specimen is the [x1]working distanceThe spine is [x1] to the breast-bone.posteriorWhat is the name of the membrane lining the organ within the pericardial cavity?visceral pericardiumWhat is the body cavity in which a single lung is located?pleural cavityWhat is the body cavity in which the brain is located (by itself)?cranial cavityWhat are the primary functional cells of nervous tissue called?neuronsWhat are the cell junctions between cardiac muscle cells called?intercalated discsWhich objective lens has the greater working distance: 10X or 40X?10xThe term "vertebral" refers to which region of the body?the spinal columnThe term "mental" refers to which region of the body?the chinThe term "buccal" refers to which region of the body?the cheekWhat primary type of tissue occurs along a body surface?epithelial tissueThe chest is [x1] to the abdomensuperiorWhat do we call an epithelial tissue that is many cell layers thick and is composed of flattened cells?stratified squamous epitheliumWhat do we call an epithelial tissue that is one cell layer thick and is composed of cells that are as high as they are wide?simple cuboidal epitheliumIdentify one location in the body where simple columnar epithelium is found.digestive tract, gallbladder, ducts of some glands, small bronchi, uterine tubesIdentify one location in the body where nervous tissue is found.brain, spinal cord, nervesWhat do we call a dense connective tissue containing collagen fibers arranged all in one direction and populated primarily by fibroblasts?dense regular connective tissueIf an epithelial tissue is composed primarily of cells that are flat, it is classified as a ___________ epithelium.squamousWhat primary type of tissue occurs along a body surface?epithelial tissueThe nuclear membrane disappears during which phase of mitosis?late prophaseWhat membranous vesicles contain oxidase enzymes that detoxify alcohol, hydrogen peroxide, and other harmful chemicals?peroxisomesWhat do we call an epithelial tissue that is one cell layer thick and is composed of cells that are as high as they are wide?simple cuboidal epitheliumWhat do we call an epithelial tissue that is many cell layers thick and is composed of cells that are as high as they are wide?stratified cuboidal epitheliumA plane of section that runs parallel to the long axis of the body and divides it into unequal right and left halves is called a [x1] section.parasagittalThe little finger is [x1] to the thumb.medialWhat is the name of the membrane lining the organ within the pericardial cavity?visceral pericardiumWhat are the mucus producing cells in epithelial tissue called?goblet cellsWhat is the name of the membrane lining the most of the organs within the abdominal cavity?visceral peritoneumEpithelial tissues are classified by what two criteria?cell shape and number of layersWhat primary type of tissue is excitable but not contractile?nervous tissueWhat do we call a dense connective tissue containing an amorphous matrix and populated primarily by chondrocytes?hyaline cartilageThe knee is [x1] to the hip.distalWhat do we call a muscular tissue in which the cells are striated, multinucleate, and parallel to one another?skeletal muscle tissueList two of the three structural types of articulations.fibrous, cartilaginous, synovialList two of the three functional types of articulations.synarthroses, amphiarthroses, diarthrosesDefine "origin" as it applies to skeletal muscles.immovable attachment site of a muscleWhat do we call the period of time between the application of a stimulus to a muscle and the first observable response or movement of the muscle?latent period