Exam 3

Question 1

damaging the hypothalamus results in what?

Answer 1

dehydration, sleep loss, and loss of body temperature control

Question 2

where would white matter be found?

Answer 2

corpus callosum, corticospinal tracts, outer portion of spinal cord

Question 3

what is the term given to a shallow grove on the surface of the cortex.

Answer 3

sulcus

Question 4

what type of neurons activate a neuron

Answer 4

unipolar multipolar and. bipolar bodies

Question 5

what is bell’s palsy

Answer 5

paralysis of the face

Question 6

what allows us to see familiar faces

Answer 6

pattern recognition

Question 7

what is endorphins

Answer 7

neurotransmitter that inhibits pain (mimicked by heorin, morphine etc.)

Question 8

what is broca’s area

Answer 8

motor speech area

Question 9

what is a gyri

Answer 9

ridges on the surface of the cerebral hemisphere

Question 10

what are the functions of the CSF

Answer 10

nourishes the brain, reduces the weight of the brain, protects from blows

Question 11

what is one way sodium gated channels can open

Answer 11

they can open in response to electrical potential changes

Question 12

what must happen for a second nerve impulse to be generated

Answer 12

the membrane potential must be reestablished

Question 13

what happens immediately after an action potential peaks

Answer 13

voltage gated potassium channels will open

Question 14

Nerve impulses sent to slow the heart’s rate of contraction are stimulated

Answer 14

parasympathetic nervous system division

Question 15

the nerve impulses carrying info to the brain regarding cool surfaces on the skin are part of what division

Answer 15

sensory (afferent) division

Question 16

An excitatory postsynaptic potential (EPSP) is described by what

Answer 16

short distance depolarization

Question 17

what are the characteristics of a interior surface of a resting neurons plasma membrane potential

Answer 17

negative charge and contain less sodium than outside the cell

Question 18

characteristics of graded potentials

Answer 18

called postsynaptic potentials Can form on receptor endings and are Short-lived

Question 19

When an excitatory postsynaptic potential (EPSP) is generated on the dendritic membrane what happens

Answer 19

a single type of channel will open, permitting flow of sodium and potassium simultaneously

Question 20

inhibitory postsynaptic potential (IPSP) is associated with what?

Answer 20

hyperpolarization

Question 21

what are Schwann cells in the PNS similar to

Answer 21

oligodendrocytes in the CNS

Question 22

what does the synaptic cleft use action potentials for?

Answer 22

to transmit a chemical signal to the post synaptic cell.

Question 23

what is an interneuron

Answer 23

a neurons whos primary job is to connect other neurons

Question 24

what does the Central nervous system contain ?

Answer 24

the spinal cord and brain

Question 25

what are the functions of the autonomic nervous system (involuntary)

Answer 25

Innervation of cardiac muscle Innervation of smooth muscle in the digestive tract Innervation of glands

Question 26

what would happen in the event or Loss of the enzyme acetylcholinestera

Answer 26

result in inability to destroy and remove acetylcholine from the synaptic cleft

Question 27

Voltage-gated channels open in response to what

Answer 27

to a change in membrane potential and participate in generation and in conduction of action potentials

Question 28

what are some characteristics of neurons

Answer 28

High metabolic rate Conduct impulses Extreme longevity

Question 29

what is the main switch for memory

Answer 29

hippocampus

Question 30

what would happen if the hippocampus got the left and right side destroyed

Answer 30

widespread amnesia

Question 31

what memory would be exemplified if your heart raced upon hearing the rattle of a rattle snake

Answer 31

emotional

Question 32

what connects the hypothalamus to the pituitary gland

Answer 32

infundibulum

Question 33

what is the large commissure that connects the right and left side of the brain

Answer 33

corpus callosum

Question 34

which ventricle is continuous with the central canal of the spinal cord

Answer 34

fourth ventricle

Question 35

if there is a loss of ability to preform fine motor skills that is not caused by paralysis what caused it

Answer 35

damage to the premotor cortex

Question 36

what is it called when you link new facts to old information

Answer 36

association

Question 37

what cortex is involved in intellect, cognition, recall, and personality

Answer 37

prefrontal cortex

Question 38

what is involved when you feel a general caress on your arm

Answer 38

lamellar corpuscles

Question 39

if you fractured your ethmoid bone it would most likely involve damage to what?

Answer 39

olfactory cranial nerve

Question 40

if you have problems with your balance it most likely means you have trauma in

Answer 40

the vestibulocochlear nerve

Question 41

what is transduction

Answer 41

the conversion of stimulus energy into energy of a graded potential

Question 42

what does the reflex arc include

Answer 42

receptor, afferent neuron, integration center, efferent neurons, effector