5001538
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Quiz von jostenhardy, aktualisiert more than 1 year ago
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Erstellt von jostenhardy
vor etwa 8 Jahre
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Frage 1
Frage
Which of the following is a function of a smooth mucle?
Antworten
-
communication
-
production of body heat
-
constriction of organs and vessels
-
respiration
Frage 2
Frage
What type of connective tissue surrounds individual muscle fibers?
Antworten
-
epimysium
-
perimysium
-
muscular fascia
-
endomysium
Frage 3
Frage
what is the plasma membrane of a muscle fiber called?
Antworten
-
sarcoplasm
-
sarcomere
-
sarcolemma
-
endomysium
Frage 4
Frage
myofibrils are formed from _________ that are joined end to end.
Antworten
-
actin myofilaments
-
sarcomeres
-
myosin myofilaments
-
sarcolemmas
Frage 5
Frage
The thick filament is also known as the _______________ myofilament?
Antworten
-
myosin
-
titin
-
actin
-
troponin
Frage 6
Frage
which molecule covers the active site on the G actin?
Antworten
-
tropomyosin
-
troponin
-
titin
-
m line
Frage 7
Frage
which molecule has a binding site for calcium?
Antworten
-
tropomyosin
-
troponin
-
titin
-
m line
Frage 8
Frage
which of the following in NOT a part of the myosin molecule?
Antworten
-
rod
-
M line
-
hinge region
-
head
Frage 9
Frage
the A band is made up of
Antworten
-
myosin and titin
-
Z disk and actin
-
M line and Z disk
-
actin and myosin
Frage 10
Frage
the structural and functional unit of skeletal muscle is the
Antworten
-
sarcolemme
-
actin myofilament
-
sarcomere
-
myosin myofilament
Frage 11
Frage
What shortens during the sliding filament model of muscle contraction?
Antworten
-
H Zone, A band, and sarcomere
-
10 bands, 50 bands, 100 bands, fk it man, lets just not even discuss it man
-
sarcomere, H zone, and I band
-
A band, I band, and H zone
Frage 12
Frage
The binding of acetylcholine to a ligand-gated channel will allow ______ to enter the muscle fiber
Antworten
-
calcium ions
-
potassium ions
-
sodium ions
-
All of the choices are correct
Frage 13
Frage
which of the following is NOT part of a neuromuscular junction?
Antworten
-
motor end-plate
-
presynaptic terminal
-
sarcoplasmic reticulum
-
synaptic cleft
Frage 14
Frage
by what process does acetylcholine move to the postsynaptic membrane?
Antworten
-
active transport
-
endocytosis
-
exocytosis
-
osmosis
Frage 15
Frage
what is the direct cause of the release of calcium ions from the sarcoplasmic reticulum?
Antworten
-
ACH binding to the recepton of the Na+ gated channel
-
calcium being released into the presynaptic terminal
-
the action potential traveling into the T tubules
-
potassium flowing out of the postsynaptic membrane
Frage 16
Frage
what is ATP directly used for in cross-bridge movement of myosin?
Antworten
-
Attachment of the myosin head to the active site of actin
-
the power stroke of the myosin head
-
the release of the myosin head from the actin
-
all are correct
Frage 17
Frage
which of the following is NOT an event that occurs during the lag phase of a muscle twitch?
Antworten
-
ACH diffuses across the synaptic cleft
-
the action potential travels down the T tubules
-
cross-bridges between actin and myosin are formed
-
calcium ions bind to troponin
Frage 18
Frage
how does the body respong to an increase in body temperature due to exercise?
Antworten
-
shivering
-
decreased muscle contractions
-
dilation of skin blood vessels and sweating
-
slower respiration
Frage 19
Frage
what causes muscle hypertrophy?
Antworten
-
an increase in the number of muscle fibers
-
fibers increase the number of myofibril and sarcomere
-
skeletal muscle cell nuclei divide
-
all are correct
Frage 20
Frage
sensory receptors and nerves make up the
Antworten
-
Peripheral nervous system
-
enteric nervous sustem
-
autonomic nervous system
-
central nervous system
Frage 21
Frage
a bundle of axons and their connective tissue sheaths are called
Antworten
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receptors
-
nerves
-
ganglia
-
effectors
Frage 22
Frage
the enteric nervous system involves the
Antworten
-
respiratory system
-
urinary sytem
-
cardiovascular system
-
digestive system
Frage 23
Frage
what organelle in the neuron is the primary site of protein synthesis
Antworten
-
rough ER
-
smooth ER
-
nucleolus
-
nissl substance
Frage 24
Frage
neurotransmitters are found in the
Antworten
-
dendritic spines
-
Presynaptic terminals
-
trigger zone
-
soma
Frage 25
Frage
which of the following is NOT a functional classifications of neurons
Antworten
-
interneuron
-
Bipolar neuron
-
sensory neuron
-
motor neuron
Frage 26
Frage
most sensory neurons are
Antworten
-
Unipolar
-
multipolar
-
bipolar
-
tripolar
Frage 27
Frage
which of the following neuroglia are NOT found in the CNS
Antworten
-
schwann cells
-
oligodendrocytes
-
astrocytes
-
ependymal cells
Frage 28
Frage
which type of neuroglial cells are responsible for the formation of the blood-brain barrier
Antworten
-
schwann cells
-
oligodendrocytes
-
astrocytes
-
ependymal cells
Frage 29
Frage
which type of neuroglial cells respond to inflammation and are phagocytic
Antworten
-
microglial
-
ependymal cells
-
oligodendrocytes
-
astrocytes
Frage 30
Frage
the oligodendrocytes form
Antworten
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the blood brain barrier
-
The myelin sheath around CNS axons
-
the myelin sheath around PNS axons
-
cerebrospinal fluid
Frage 31
Frage
groups of cell bodies and nonmyelinated axons form
Antworten
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gray matter
-
white matter
-
nerve tracts
-
ganglia
Frage 32
Frage
collections of myelinated axons in the CNS are called
Antworten
-
ganglia
-
nerve tracts
-
nuclei
-
nerves
Frage 33
Frage
which of the following is NOT found in high concentration outside of a nerve cell
Antworten
-
Na+
-
Cl-
-
Ca2+
-
K+
Frage 34
Frage
what type of membrane channels are nongated and responsible for the permeability of the membrane at rest?
Antworten
-
Na-K pump
-
Leak Channels
-
ligand gated ion channels
-
volatge gated ion channels
Frage 35
Frage
which of the following is NOT true about changes in the membrane potential
Antworten
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an increase in the movement of potassium out of the cell creates a hyperpolarization
-
an increase in the movement of calcium ions into the cell creates a hyperpolarization
-
an increase in the movement of sodium ions into the cell causes depolarization
-
an increase in the movement of chloride ions into the cell causes hyperpolarization
Frage 36
Frage
the continued movement of potassium ions out of the cell through open voltage-gated K+ channels is called
Antworten
-
polarization
-
depolarization
-
Repolarization
-
hyperpolarization
Frage 37
Frage
complete insensitivity to additional stimuli, no matter how strong is called the
Antworten
-
absolute refractory period
-
threshold period
-
relative refractory period
-
all or none principle
Frage 38
Frage
which of the following is NOT part of a chemical synapse
Antworten
-
connexons
-
postsynaptic terminal
-
synaptic cleft
-
presynaptic terminal
Frage 39
Frage
what type of summation occurs when two action potentials arrive in close succession at the presynaptic terminal that add together to produce an action potential
Antworten
-
temporal summation
-
excitatory summation
-
spatial summation
-
oscillating summation
Frage 40
Frage
a neuron pathway with many presynaptic neurons synapsing with one postsynaptic neuron is called a
Antworten
-
oscillating circuit
-
convergent pathway
-
parallel pathway
-
divergent pathway
Frage 41
Frage
which of the following is NOT a part of the study of anatomy
Antworten
-
the structure of body parts
-
predicting the body's responses to stimuli
-
microscopic organization
-
the relationship between structure and function
Frage 42
Frage
which anatomical body region is NOT matched with its common name
Antworten
-
brachial- arm
-
pectoral- chest
-
coxal- hip
-
crural- ankle
Frage 43
Frage
which of the following is NOT true about isotopes
Antworten
-
isotopes are two or more forms of the same element
-
isotopes have different atomic numbers
-
isotopes have different mass numbers
-
some isotopes are radioactive
Frage 44
Frage
the folding or bending of the polypeptide chain into an alpha-helix or beta-pleated sheet held by hydrogen bonds is the _________ structure of a protein
Antworten
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primary
-
secondary
-
tertiary
-
quaternary
Frage 45
Frage
in a solution of sugar and water, which of the following is true?
Antworten
-
sugar is the solvent and water is the solution
-
sugar is the solute and water is the solvent
-
sugar is the solvent and water is the solute
-
sugar and water are both getting turnt tonighttttt
Frage 46
Frage
the use of protein molecules to move non-lipid soluble molecules and ions through the plasma membrane is called
Antworten
-
osmosis
-
simple diffusion
-
lysis
-
mediated transport
Frage 47
Frage
what type of cell is found in cartilage
Antworten
-
fibroblast
-
osteocyte
-
chondrocyte
-
osteoclast
Frage 48
Frage
which of the following is NOT a type of internal body membrane
Antworten
-
synovial membrane
-
serous membrane
-
cutaneous membrane
-
mucuous membrane
Frage 49
Frage
which is the correct sequence of the strata of the epidermis from deep to superficial?
1. Stratum Lucidum
2. Stratum basale
3. stratum corneum
4. stratum granulosum
5. stratum spinosum
Antworten
-
3 1 4 5 2
-
1 2 3 4 5
-
2 5 4 1 3
-
4 2 3 1 5
Frage 50
Frage
the formation of bone by osteoblasts is called
Antworten
-
ossification
-
osteogenesis
-
resorption
-
both ossification and osteogenesis
Frage 51
Frage
the elevated ridges of tissue on the surface of the cerebral hemispheres are known as __________ while the shallow grooves are termed _______
Antworten
-
sucli: gyri
-
gyri: sucli
-
ganglia: gyri
-
tracts: ganglia
Frage 52
Frage
a stroke in the primary motor area has caused Austin to lose control over his skeletal muscles on the right side of his body. What lobe of his brain was damaged?
Antworten
-
occipital lobe
-
temporal lobe
-
frontal lobe
-
parietal lobe
Frage 53
Frage
Kegen has a brain injury: she knows what she wants to say but cant vocalize the words. the part of her brain that deals with the ability to speak is the
Antworten
-
longitudinal fissure
-
gyrus
-
central sulcus
-
Broca's area
Frage 54
Frage
the midbrain, pons, and medulla oblongata are housed in the
Antworten
-
armpit
-
hypothalamus
-
brain stem
-
pineal gland
Frage 55
Frage
which lobe contains the primary motor area and enables the voluntary control of skeletal muscle movements
Antworten
-
parietal lobe
-
temporal lobe
-
occipital lobe
-
frontal lobe
Frage 56
Frage
the pituitary gland is most closely associated with the
Antworten
-
hypothalamus
-
thalamus
-
pineal gland
-
midbrain
Frage 57
Frage
the area of the brain stem that plays a role in consciousness and the sleep/wake cycles is the
Antworten
-
thalamus
-
reticular activating system
-
pineal gland
-
limbic system
Frage 58
Frage
control of temperature, endocrine activity, metabolism, and thirst are functions associated with the
Antworten
-
medulla oblongata
-
cerebellum
-
hypothalamus
-
thalamus
Frage 59
Frage
the vital centers for the control of visceral activities such as heart rate, breathing, blood pressure, swallowing, and vomiting are located in the
Antworten
-
pons
-
medulla oblongata
-
midbrain
-
cerebrum
Frage 60
Frage
loss of muscle coordination results from the damage to the
Antworten
-
cerebrum
-
hypothalamus
-
cerebellum
-
thalamus
Frage 61
Frage
which one of the following represents the correct sequence from the outermost to innermost layers of the meninges
Antworten
-
dura: arachnoid: pia
-
pia: arachnoid: dura
-
arachnoid: dura: pia
-
dura: spider: pia
Frage 62
Frage
the cerebrospinal fluid
Antworten
-
is secreted by the arachnoid villa
-
enters the four ventricles after filling and circulating through the subarachnoid space
-
is secreted mostly by the ependymal cells lining the brain ventricles
-
is continually formed mostly by the choroid plexuses
Frage 63
Frage
the gray matter of the spinal cord
Antworten
-
surrounds the central canal
-
contains myelinated fiber tracts
-
is made up of the dorsal, lateral, and ventral columns
-
surrounds the white matter of the spinal cord
Frage 64
Frage
which one of the following is the correct sequence in connective tissue sheaths, going from outermost to innermost layer
Antworten
-
epineurium, endoneurium, perineurium
-
epineurium, perineurium, endoneurium
-
perineurium, epineurium, endoneurium
-
perineurium, endoneurium, epineurium
Frage 65
Frage
who is the coolest cat of them all, not including Brennan
Antworten
-
Josten
-
Kegen
-
Lindsey
-
Austin
Frage 66
Frage
which of the following is NOT true of skeletal muscle
Antworten
-
long, cylindrical fibers
-
multiple nuclei
-
totally under involuntary control
-
has striations
Frage 67
Frage
what type of connective tissue surrounds bundles of muscle fibers to create the muscle fascicles
Antworten
-
epimysium
-
perimysium
-
muscular fascia
-
endomysium
Frage 68
Frage
what is the plasma membrane of a muscle fiber called
Antworten
-
sarcoplasm
-
sarcomere
-
sarcolemma
-
endomysium
Frage 69
Frage
myofibrils are formed from __________ that are joined end to end
Antworten
-
actin myofilaments
-
sarcomeres
-
myosin myofilaments
-
sarcolemmas
Frage 70
Frage
which molecule covers the active site on the G actin
Antworten
-
tropomyosin
-
troponin
-
titin
-
M line
Frage 71
Frage
the H zone is where
Antworten
-
there is only actin
-
there is only myosin
-
there is only the Z disk
-
there is only titin
Frage 72
Frage
the structural and functional unit of skeletal muscle is the
Antworten
-
sarcolemma
-
actin myofilament
-
sarcomere
-
myosin myofilament
Frage 73
Frage
what shortens during the siding filament model of muscle contraction
Antworten
-
H zone, A band, and sarcomere
-
A band, I band, and sarcomere
-
sarcomere, H zone, I band
-
A band, I band, and H zone
Frage 74
Frage
there are ________ pairs of cranial nerves and _________ pairs of spinal nerves
Antworten
-
31, 12
-
12, 25
-
13, 31
-
12, 31
Frage 75
Frage
the enteric nervous system involves the
Antworten
-
respiratory system
-
urinary system
-
cardiovascular system
-
digestive system
Frage 76
Frage
which subdivision of the autonomic nervous system regulates resting or vegetative functions
Antworten
-
parasympathetic
-
enteric
-
somatic
-
sympathetic
Frage 77
Frage
what organelle in the neuron is the primary site of protein synthesis
Antworten
-
rough ER
-
smooth ER
-
nucleolus
-
nissl substance
Frage 78
Frage
the area of the neuron cell body that generates the action potential is the
Antworten
-
trigger zone
-
soma
-
dendritic spine
-
none of the choices are correct
Frage 79
Frage
what type of summation occurs when two action potentials arrive in close succession at the presynaptic terminal that add together to produce an action potential
Antworten
-
temporal summation
-
excitatory summation
-
spatial summation
-
oscillating summation
Frage 80
Frage
what produces cerebrospinal fluid
Antworten
-
arachnoid granulations
-
dural sinuses
-
choroid plexuses
-
pia mater
Frage 81
Frage
what type of fibers connect areas of the cerebral cortex within the same hemisphere
Antworten
-
association fibers
-
commissural fibers
-
projection fibers
-
cerebral penducles
Frage 82
Frage
what structure separates the frontal from the parietal lobe
Antworten
-
longitudinal fissure
-
transverse fissure
-
central sulcus
-
lateral fissure
Frage 83
Frage
raised folds on the surface of the cerebrum are called
Antworten
-
gyri
-
sulci
-
fissures
-
lobes
Frage 84
Frage
which of the following is NOT a function of the hypothalamus
Antworten
-
body temperature control
-
autonomic nervous system control
-
mood and emotions
-
all of them
Frage 85
Frage
all sensory impulses except for smell are relayed through the
Antworten
-
hypothalamus
-
epithalamus
-
thalamus
-
subthalamus
Frage 86
Frage
which of the following is NOT part of the diencephalon
Antworten
-
hypothalamus
-
midbrain
-
thalamus
-
subthalamus
Frage 87
Frage
the white matter of the cerebellum is called the
Antworten
-
folia
-
cerebellar penducles
-
arbor vitae
-
vermis
Frage 88
Frage
which of the following is NOT part of the brainstem
Antworten
-
thalamus
-
pons
-
medulla oblongata
-
midbrain
Frage 89
Frage
the connective tissue wrap that surrounds many fascicles to form a nerve is the
Antworten
-
epineurium
-
perineurium
-
endoneurium
-
dermaneurium
Frage 90
Frage
which of the following is the correct sequence of structures in a reflex arc
Antworten
-
effector organ, motor neuron, interneuron, sensory neuron, sensory receptor
-
interneuron, sensory neuron, motor neuron, sensory receptor, effector organ
-
sensory receptor, sensory neuron, interneuron, motor neuron, effector organ
-
sensory receptor, sensory neuron, motor neuron, interneuron, effector organ
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