Unit 4 + Comprehnesive Flashcards
What do we call neuronal processes that transmit membrane potentials away from the neuronal cell body
axon
What type of glial cell is responsible for producing and circulating cerebrospinal fluid?
Ependymal cell
What do we call the period during which an action potential cannot be initiated, regardless of the strength of the stimulus
absolute refractory period
Hyperpolarization is the result of the excessive exit of which ion from the cell?
potassium
In the physioex exercise, what was the effect of lidocaine on the nerve?
inhibition
What is the functional classification for neurons that carry information from the central nervous system to peripheral effector organs?
motor
What type of glial cell is responsible for myelinating axons in the peripheral nervous system?
schwann cell
In the physioex exercise, what was the effect of ether on the nerve?
inhibition
Depolarization is the result of the rapid entry of which ion into the cell?
Sodium
What are clusters of neuronal cell bodies in the central nervous system called?
nuclei
What is the functional classification for neurons that carry information from perpheral receptors to the central nervous system?
sensory
What do we call the period during which initation of an action potential requires a higher than normal threshold stimulus?
relative refractory period
What do we call neuronal processe that carry receptors for neurotransmitters and that transmit membrane potentials toward the neuronal cell body?
dendrites
What is the smallest stimulus that is capable of initating an action potential called?
threshold
What type of glial cell is responsible for myelinating axons in the central nervous system?
oligodendrocyte
What are clusters of neuronal cell bodies in the peripheral nervous system called?
ganglia
What type of glial cell is responsible for supporting neurons and maintaining the blood/brain barrier?
astrocyte
What fluid fills the scala tympani?
perilymph
The bending of light as it passes from a material of one density to a material of a different density is called?
refraction
What cranial nerve supplies the inferior rectus muscle of the eye?
Occulomotor
To which portion of the ear (outer, middle, inner) does the cochlea belong?
Inner
Which of the three tunics (layers) does the cornea belong to?
Fibrous
With which sense (hearing, static equilibrium, dynamics equilibrium) is the semicircular canal associated?
dynamic
The term “femoral” refers to which region of the body?
thigh
The hand is ___ to the elbow
distal
The nose is ___ to the ears
medial
You are examining a microscope under the 10X objective lens and you switch to the 4X objective lens. The depth of field will:
increase
Which objective lens has the greater depth of field: 10X or 40X?
10X
Given the following physiological requirements at a particular location within the body, name the specific tissue type that would most likely be found there:
This material must be able to transport material all throughout the body.
Blood
What do we call an epithelial tissue that is one cell layer thick and is composed of flattened cells?
Simple squamous epithelial tissue
What primary type of tissue is excitable but not contractile?
Nervous
What minute, finger-like projections of the cell membrane serve to increase the surface area of the cell for absorption?
Microvilli
a site for muscle or ligament attachment that consists of a sharp, slender, often pointed projection is a:
spine
The central canal that runs down the center of an osteon is also called the:
central canal
What functional type of articulation is a symphysis?
amphiarthrosis
What is the name of the type of synovial joint that has rotational movement around a single axis that accomplishes flexion and/or extension at the joint?
hinge
A single motor neuron, along with all of the muscle fibers that it innervates, is called:
motor unit
Define “insertion” as it applies to skeletal muscles
moveable site of attachment
What fluid fills the scala vestibuli?
perilymph
A blurred area in the field of vision caused by unequal curvatures of the lens or cornea is called
Astigmatism
Which cranial nerve supplies the inferior oblique muscle of the eye?
occulomotor
Which of the three tunics (layers) does the sclera belong to?
Fibrous
To which portion of the ear does the acoustic meatus belong?
Outer
With which sense is the utricle associated?
static equilibrium
The proper anatomical term for the foot is
pedal
