Bios 3500 Exam 2

Front 1

True or False. The cell bodies of agree to neurons are located in the dorsal root ganglion, outside the CNS.

Back 1

True

Front 2

True or False. Respiratory distress resulting from tetanus toxin is the result of an autoimmune response triggered by a viral infection

Back 2

False

Front 3

True or False. The withdrawal reflex that occurs when you touch a hot plate is an example of an acquired reflex.

Back 3

False.

Front 4

True or False. The mechanism associated with short-term memory involves modification of NT release from presynaptic neurons.

Back 4

False

Front 5

True or False. White matter of the brain consists of the cell bodies that are located in the corpus collosum.

Back 5

False

Front 6

True or False. The somatosensory vortex of the parietal love contains an upside-down sensory map of the body with regions that are exaggerated due to increased sensory input.

Back 6

True

Front 7

The outermost meninge that covers the brain and spinal cord is known as....

Back 7

Dura mater

Front 8

In convergence...

Back 8

100s or 1000s if synapses from many neurons end upon a single neuron.

Front 9

Which statement regarding activation of a 2MS is correct?

A. All involve activation of Adenyl cyclase located in the plasma membrane

B. Contain G proteins on the extra cellular side of the plasma membrane.

C. Large amounts of chemical messengers are needed to initiate 2MS

D. Magnesium released from the ER can be a 2M

E. Typically activate protein kinases to phosphorylation proteins.

Back 9

E.

Front 10

Necrosis...

Back 10

Is typically triggered by lack of oxygen or nutrients

Front 11

What part of the brain helps with short term memory consolidation into long term memory?

Back 11

Hippocampus

Front 12

Which is false about CSF?

A. It’s a shock absorbing fluid

B. Formed in choroid plexus

C. Provides majority of brain nutrients

D. Fills meninge space between dura and arachnoid mater

E. Flows through ventricles

Back 12

D.

Front 13

Select the characteristic not associated with short term memory:

A. Occurs by habituation and sensitization

B. Is due to transient modifications

C. Requires the synthesis of new proteins

D. Permanently forgotten if consolidation does not occur.

E. Can be rapidly retrieved.

Back 13

C.

Front 14

The BBB...

Back 14

Is formed by right junctions between brain capillary beds

Front 15

An excess of dopamine in the basal nuclei can lead to..

Back 15

Schizophrenia

Front 16

True or False. Phospholipids C is involved in the cAMP 2MS.

Back 16

False.

Front 17

Habituation is...

Back 17

The repeated gentle stimulation which causes voltage gates Ca2+ channels to close in the afterward nerve terminal resulting in reduced NT release and a reduced response to repeated stimulation.

Front 18

The limbic system is involved with...

Back 18

Learning and memory

Front 19

Temporal summation takes place when...

Back 19

2 EPSPs from the same presynaptic input occur so close together in time that the add together and sum.

Front 20

Which brain structure contains centers for respiration, heart and blood vessel function and digestive activities?

Back 20

Brain stem

Front 21

Which brain structure is involved with sexual behavior?

Back 21

The limbic system

Front 22

Which brain structure is responsible for the “pleasure-reward” center?

Back 22

The limbic system

Front 23

Which brain structure links the endocrine and ANS function?

Back 23

Hypothalamus

Front 24

Which brain structure controls thirst, urine output, food intake, and body temperature?

Back 24

Hypothalamus

Front 25

Which brain structure acts as a sensory relay station to filter out insignificant stimuli?

Back 25

Thalamus

Front 26

Which brain structure is the area of the brain where loss of motor neurons and a decrease in dopamine levels can result in Parkinson’s disease?

Back 26

Basal Nuclei

Front 27

Which brain structure is the source of 12 pairs of cranial nerves?which

Back 27

Brain stem

Front 28

Which brain structure is responsible for sleep?

Back 28

Brain stem

Front 29

Which autonomic receptor binds with NE released from parasympathetic fibers which innervate the smooth muscle of the digestive system?

Back 29

Beta 2

Front 30

Which autonomic receptor opens nonspecific cation channels?

Back 30

Nicotinic

Front 31

The activation of which receptor in the arterioles of the skeletal muscles leads to vasodialation?

Back 31

Beta 2

Front 32

Activation of which receptor in the bronchioles of the lungs leads to broncodialation?

Back 32

Beta 2

Front 33

Which autonomic receptor is found in the majority of arterioles throughout the body to cause vasoconstriction?

Back 33

Alpha 1

Front 34

Which autonomic receptor is the primary receptor found in the heart?

Back 34

Beta 1

Front 35

Which autonomic receptor bind with ACh relaxed from parasympathetic post ganglionic fibers?

Back 35

Muscarinic

Front 36

Which autonomic receptor is found on the dendrites of postganglionic fibers?

Back 36

Nicotinic

Front 37

Which brain lobe processes visual input?

Back 37

Occipital

Front 38

Which brain lobe is responsible for language?

Back 38

Frontal lobe

Front 39

Which brain lobe contains the somatotropin map?

Back 39

Frontal

Front 40

Which brain lobe processes sound input?

Back 40

Temporal

Front 41

Which brain lobe contains the somatosensory map?

Back 41

Parietal

Front 42

Which brain lobe is responsible for personality traits?

Back 42

Frontal