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Flashcards in Exam 4 Deck (33):
1

the concentration of ions in the chemical environment surrounding the neurons must betightly regulated for neurons to function properly. which of the following gives the best explanation for why this is so

astrocytes

2

the effect of acetycholine can be stimulating or inhibiting. which of the following gives the best explanation for why this is so

different postsynaptic cells will have different receptors

3

these cells in the CNS have cilia that move in order to circulate cerebrospinal fluid

ependymal cells

4

what does the CNS use to determine the strength of a stimulus

frequency of action potentials

5

which of the following describes the nervous system integrative function

analyses sensory information, stores information, makes decisions

6

collections of nerve cell bodies outside the cns are called

ganglia

7

a neuron that has as its primary function the job of connecting other neurons is called

interneuron

8

salutatory conduction is made possible by

the ,myelin sheath

9

immediately after an action potential has peaked, which of the following channels will open

voltage gated potassium channels

10

an inhibitory postsynaptic potential (IPSP) is associated with

hyperpolarization

11

the brain stem consists of the

midbrain, medulla, and pons

12

vital centers for the control of heart rate, respiration and blood pressure are located in the

medulla oblongata

13

a shallow groove on the surface of the cerebral cortex is called a

sulcus

14

the blood-brain barrier is effective against

metabolic waste such as urea

15

the process of linking new facts with old facts already stored in the memory bank is called

association

16

which of the following is not a function of the CSF

initiation of some nerve impulses

17

which of the following is the mildest consequence of traumatic brain injury

concussion

18

declarative memory

is the ability to learn specific information

19

which brain waves are uncommon for awake adults, but are common for children

theta

20

the __ includes the thalamus, hypothalamus and epithalamus

diencephalon

21

if someone spills very hot coffee on their skin, they will likely perceive much pain. which of the following receptor types is causing the sensation

nociceptors

22

a patient is suffering from the inability to distinguish various types of odors. this patient may have damage to which of the following

olfactory nerve

23

complicated interlacing of the ventral rami form networks called nerve plexus. the crisscrossing of the nerve fibers from the various spinal nerves is advantageous because

injury to any single spinal nerve...

24

inborn or intrinsic reflexes are

involuntary

25

after axonal injury, regeneration in peripheral nerves is guided by

Schwann cells

26

what is the main functionof the rods in the eye

vision in dim light

27

what structure regulates the amount of light passing to the visual receptors of the eye

iris

28

the receptor for static equilibrium is the

macula

29

the oval window is connected directly to which passageways

scala vestibuli

30

which of the following taste sensations is incorrectly matched to the chemicals that produce it

umani-triglycerides and fatty acids

31

olfactory cells and taste buds are normally stimulated by

substances in solution

32

the eye muscle that elevates and turns the eye laterally is the

inferior oblique

33

light passes through the following structures in which order

cornea, aqueous humor, lens, vitreous humor