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Anatomy final

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Practice for 2nd semester final
Sina Moglestue
Quiz by Sina Moglestue, updated more than 1 year ago
Sina Moglestue
Created by Sina Moglestue over 8 years ago
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Resource summary

Question 1

Question
In a polarized neuron at rest, which ion is concentrated outside the cell?
Answer
  • Na+
  • Ca++
  • None of the above
  • K+

Question 2

Question
The period of time in which the neuron cannot generate another action potential is called the
Answer
  • all or none period
  • refractory period
  • latent period
  • sublimial period

Question 3

Question
A typical resting membrane potential is
Answer
  • +30 mv
  • 0 mv
  • -70 mv
  • +100 mv

Question 4

Question
Impulses are conducted from one neuron to another across a
Answer
  • Ganglion
  • synapse
  • neurofibral node
  • neuroeffector junction

Question 5

Question
Which of the following is true about synapses?
Answer
  • Neurotransmitters are released by the dendrites at synapses
  • information jumps synapses in the form of electric arcs
  • neurotransmitters are released in the form of Na and K vesicles
  • information passes in only one direction across synapses

Question 6

Question
Which of the following best describes the transmission of an impulse along a neuron?
Answer
  • the movement of a neurotransmitter along a neuronal membrane
  • sodium and potassium ions moving over the surface of the neuron
  • a wave of depolarization spreading from the point of the stimulus
  • positive charges spreading over the surface of an excitable cell

Question 7

Question
Which of the following is released by a presynaptic neuron to generate an impulse in the postsynaptic neuron?
Answer
  • an electric spark
  • integrators
  • neurotransmitters
  • packets of sodium and potassium

Question 8

Question
The thalamus and hypothalamus are parts of the brain located in the
Answer
  • Diencephalon
  • Pons
  • Medulla oblongata
  • Midbrain

Question 9

Question
the ability of neurons to respond to stimuli and convert them to impulse is called
Answer
  • excitability
  • faciliation
  • summation
  • depolarization

Question 10

Question
the type of neuroglial cell found between neurons and blood vessels that join parts by numerous cellular processes are
Answer
  • astrocytes
  • ependymal cells
  • oligodendrocytes
  • microglial cells

Question 11

Question
emotions of fear, anger, and pleasure are produced by the
Answer
  • pons
  • cerebellum
  • limbic system
  • medulla oblongata

Question 12

Question
which of the following is not a structural feature of a neuron?
Answer
  • neurolemma
  • synapse
  • missl granules
  • axon

Question 13

Question
the job of maintaining homeostasis is a function of the ___ and ___ systems
Answer
  • nervous...endocrine
  • nervous...digestive
  • endocrine...digestive
  • urinary...digestive

Question 14

Question
if a neuron within the CNS has its axon severed,
Answer
  • the neuron will be spurred to reproduce a fully functional one
  • the neuron will lose its funstion
  • the neuron will most likely die
  • it will soon regenerate

Question 15

Question
It can be said that in a resting neuron, the
Answer
  • inside of the cell is more electropositive than the outside
  • concentration of K+ ions is greater outside the cell
  • membrane is polarized
  • all of the above

Question 16

Question
A cross section of the cord reveals a core of white matter surrounded by gray matter
Answer
  • True
  • False

Question 17

Question
neurons, like muscle fibers, conduct impulses according to the all or none response
Answer
  • True
  • False

Question 18

Question
A nerve impulse would travel faster down a myelinated C fiber
Answer
  • True
  • False

Question 19

Question
Synaptic conduction of a nerve impulse can be affected by changes is pH
Answer
  • True
  • False

Question 20

Question
during a neuron's resting state, it is full of Na+ ions
Answer
  • True
  • False

Question 21

Question
neurons have plasma membranes which contain a variety of ion charges
Answer
  • True
  • False

Question 22

Question
A neuron will respond maximally to a sub-threshold stimulus
Answer
  • True
  • False

Question 23

Question
the jejenum is the first part of the small intestine
Answer
  • True
  • False

Question 24

Question
One part of the stomach is called the cardiac region
Answer
  • True
  • False

Question 25

Question
Cells that secrete hydrochloric acid are called chief cells
Answer
  • True
  • False

Question 26

Question
peristalsis acts to move food along the alimentary tube
Answer
  • True
  • False

Question 27

Question
the starting place for chemical digestion is the stomach
Answer
  • True
  • False

Question 28

Question
One function of the esophagus is to coat the bolus with mucus
Answer
  • True
  • False

Question 29

Question
The digestive enzyme pepsin secreted by gastric glands begins the digestion of
Answer
  • sucrose
  • fat
  • protein
  • carbs

Question 30

Question
The main part of the stomach is called the
Answer
  • fundic region
  • pyloric region
  • cardiac region
  • none of these

Question 31

Question
The salivary enzyme amylase functions to digest
Answer
  • carbs
  • fats
  • all of these
  • proteins

Question 32

Question
The teeth that are best adapted for biting off large pieces of food is called the
Answer
  • incisors
  • cuspids
  • molars
  • bicuspids

Question 33

Question
Peristalsis occurs in the digestive tract
Answer
  • from the pharynx to anus
  • in the stomach and small intestines only
  • in the small and large intestines only
  • in the stomach, small intestine, and large intestines only

Question 34

Question
The material that covers the crown of the teeth is
Answer
  • cementum
  • dentin
  • enamel
  • plaque

Question 35

Question
What parts of a tooth are destroyed by dental caries?
Answer
  • Enamel
  • Dentin
  • Pulp
  • Cementum

Question 36

Question
The digestive enzyme pepsin secreted by gastric glands begins in the digestion of
Answer
  • carbohydrates
  • protein
  • fats
  • none of these

Question 37

Question
Type A hepatitis is transmitted by
Answer
  • Ingestion of food contaminated by feces
  • transfusion with blood contaminated by the hepatitis virus
  • use of improperly cleaned needles
  • sexual activity

Question 38

Question
The foods that stay in the dtomach for longest are high in
Answer
  • fats
  • proteins
  • carbs
  • amino acids
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