Sina Moglestue
Quiz by , created more than 1 year ago

Practice for 2nd semester final

9
0
0
Sina Moglestue
Created by Sina Moglestue almost 8 years ago
Close

Anatomy final

Question 1 of 38

1

In a polarized neuron at rest, which ion is concentrated outside the cell?

Select one of the following:

  • Na+

  • Ca++

  • None of the above

  • K+

Explanation

Question 2 of 38

1

The period of time in which the neuron cannot generate another action potential is called the

Select one of the following:

  • all or none period

  • refractory period

  • latent period

  • sublimial period

Explanation

Question 3 of 38

1

A typical resting membrane potential is

Select one of the following:

  • +30 mv

  • 0 mv

  • -70 mv

  • +100 mv

Explanation

Question 4 of 38

1

Impulses are conducted from one neuron to another across a

Select one of the following:

  • Ganglion

  • synapse

  • neurofibral node

  • neuroeffector junction

Explanation

Question 5 of 38

1

Which of the following is true about synapses?

Select one of the following:

  • 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

Explanation

Question 6 of 38

1

Which of the following best describes the transmission of an impulse along a neuron?

Select one of the following:

  • 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

Explanation

Question 7 of 38

1

Which of the following is released by a presynaptic neuron to generate an impulse in the postsynaptic neuron?

Select one of the following:

  • an electric spark

  • integrators

  • neurotransmitters

  • packets of sodium and potassium

Explanation

Question 8 of 38

1

The thalamus and hypothalamus are parts of the brain located in the

Select one of the following:

  • Diencephalon

  • Pons

  • Medulla oblongata

  • Midbrain

Explanation

Question 9 of 38

1

the ability of neurons to respond to stimuli and convert them to impulse is called

Select one of the following:

  • excitability

  • faciliation

  • summation

  • depolarization

Explanation

Question 10 of 38

1

the type of neuroglial cell found between neurons and blood vessels that join parts by numerous cellular processes are

Select one of the following:

  • astrocytes

  • ependymal cells

  • oligodendrocytes

  • microglial cells

Explanation

Question 11 of 38

1

emotions of fear, anger, and pleasure are produced by the

Select one of the following:

  • pons

  • cerebellum

  • limbic system

  • medulla oblongata

Explanation

Question 12 of 38

1

which of the following is not a structural feature of a neuron?

Select one of the following:

  • neurolemma

  • synapse

  • missl granules

  • axon

Explanation

Question 13 of 38

1

the job of maintaining homeostasis is a function of the ___ and ___ systems

Select one of the following:

  • nervous...endocrine

  • nervous...digestive

  • endocrine...digestive

  • urinary...digestive

Explanation

Question 14 of 38

1

if a neuron within the CNS has its axon severed,

Select one of the following:

  • 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

Explanation

Question 15 of 38

1

It can be said that in a resting neuron, the

Select one of the following:

  • 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

Explanation

Question 16 of 38

1

A cross section of the cord reveals a core of white matter surrounded by gray matter

Select one of the following:

  • True
  • False

Explanation

Question 17 of 38

1

neurons, like muscle fibers, conduct impulses according to the all or none response

Select one of the following:

  • True
  • False

Explanation

Question 18 of 38

1

A nerve impulse would travel faster down a myelinated C fiber

Select one of the following:

  • True
  • False

Explanation

Question 19 of 38

1

Synaptic conduction of a nerve impulse can be affected by changes is pH

Select one of the following:

  • True
  • False

Explanation

Question 20 of 38

1

during a neuron's resting state, it is full of Na+ ions

Select one of the following:

  • True
  • False

Explanation

Question 21 of 38

1

neurons have plasma membranes which contain a variety of ion charges

Select one of the following:

  • True
  • False

Explanation

Question 22 of 38

1

A neuron will respond maximally to a sub-threshold stimulus

Select one of the following:

  • True
  • False

Explanation

Question 23 of 38

1

the jejenum is the first part of the small intestine

Select one of the following:

  • True
  • False

Explanation

Question 24 of 38

1

One part of the stomach is called the cardiac region

Select one of the following:

  • True
  • False

Explanation

Question 25 of 38

1

Cells that secrete hydrochloric acid are called chief cells

Select one of the following:

  • True
  • False

Explanation

Question 26 of 38

1

peristalsis acts to move food along the alimentary tube

Select one of the following:

  • True
  • False

Explanation

Question 27 of 38

1

the starting place for chemical digestion is the stomach

Select one of the following:

  • True
  • False

Explanation

Question 28 of 38

1

One function of the esophagus is to coat the bolus with mucus

Select one of the following:

  • True
  • False

Explanation

Question 29 of 38

1

The digestive enzyme pepsin secreted by gastric glands begins the digestion of

Select one of the following:

  • sucrose

  • fat

  • protein

  • carbs

Explanation

Question 30 of 38

1

The main part of the stomach is called the

Select one of the following:

  • fundic region

  • pyloric region

  • cardiac region

  • none of these

Explanation

Question 31 of 38

1

The salivary enzyme amylase functions to digest

Select one of the following:

  • carbs

  • fats

  • all of these

  • proteins

Explanation

Question 32 of 38

1

The teeth that are best adapted for biting off large pieces of food is called the

Select one of the following:

  • incisors

  • cuspids

  • molars

  • bicuspids

Explanation

Question 33 of 38

1

Peristalsis occurs in the digestive tract

Select one of the following:

  • 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

Explanation

Question 34 of 38

1

The material that covers the crown of the teeth is

Select one of the following:

  • cementum

  • dentin

  • enamel

  • plaque

Explanation

Question 35 of 38

1

What parts of a tooth are destroyed by dental caries?

Select one of the following:

  • Enamel

  • Dentin

  • Pulp

  • Cementum

Explanation

Question 36 of 38

1

The digestive enzyme pepsin secreted by gastric glands begins in the digestion of

Select one of the following:

  • carbohydrates

  • protein

  • fats

  • none of these

Explanation

Question 37 of 38

1

Type A hepatitis is transmitted by

Select one of the following:

  • Ingestion of food contaminated by feces

  • transfusion with blood contaminated by the hepatitis virus

  • use of improperly cleaned needles

  • sexual activity

Explanation

Question 38 of 38

1

The foods that stay in the dtomach for longest are high in

Select one of the following:

  • fats

  • proteins

  • carbs

  • amino acids

Explanation

Previous
Next