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Psychology > Mod 10 study guide > Flashcards

Mod 10 study guide Flashcards

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1
Q

What does the nervous system do?

A

makes decisions, takes in info, and orders body’s tissues

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2
Q

What does the peripheral nervous system (PNS) do?

A

transmits central nervous system(CNS) to other body parts

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3
Q

what does the central brain do?

A

makes decisions for the body

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4
Q

What does the autonomic nervous system do?

A

controls self-regulated action of internal organs and glands

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5
Q

What does the parasympathetic nervous system do?

A

conserves energy and calms the body

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6
Q

what is used in these:

a) reading a book
b) participating in practice after school
c) eating dinner
d) turning a page
e) taking a big test
f) laying down relaxing

A

a) peripheral
b) central nervous system
c) autonomic
d) somatic
e) sympathetic
f) parasympathetic

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7
Q

what is effected when the SYMPATHETIC nervous system is stimulated?

A

-dilated pupils(pupil of eye)
-heartbeat accelerates(heart)
-inhibits digestion(stomach)
-glucose is released by the liver(liver)
-no effect(gallbladder)
stimulates secretion of epinephrine, norepinephrine(adrenal glands)
-relaxed (bladder)
-stimulates ejaculation in male(sex organs)

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8
Q

What is effected when the PARASYMPATHETIC nervous system is stimulated?

A
  • pupils contract
  • heart slows
  • digestion in stomach is stimulated
  • no effect on liver
  • gallbladder stimulated
  • no effect on adrenal glands
  • bladder contracts
  • sex organs allow blood flow
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9
Q

what are the 3 types of neurons used to carry reflex information to and from spinal cord?

A

parasympathetic-spinal cord’s internal communications

sympathetic-sends reflex info in from the body’s tissues and sense receptors

autonomic-sends reflex info out to the body’s muscles and glands

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10
Q

in what ways do the endocrine and nervous system act similar? and how do they differ?

A

both are communication networks that send off messages, but the endocrine system controls messages and hormones. The nervous system controls nerves and impulses in the body.

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11
Q

how does the endocrine system’s release of hormones influence us?

A

when released, the hormones travel through the blood stream and affect other tissues, including the brain. When hormones act on the brain, they influence our interest.

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12
Q

hypothalamus

A

brain region controlling pituitary gland

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13
Q

ovary

A

secretes female hormones

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14
Q

adrenal glands

A

helps trigger “fight or flight” response

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15
Q

pituitary gland

A

releases growth hormone, oxytocin, and other hormones

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16
Q

thyroid gland

A

affects metabolism

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17
Q

testis

A

secrets male hormones

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18
Q

pancreas

A

regulates the level of sugar in the blood

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19
Q

parathyroid

A

regulates the level of calcium in the blood

20
Q

why is the pituitary gland referred to as the master gland?

A

pituitary secretions directs other endocrine glands to release their hormones

21
Q

What is the nervous system?

A

a communication network

  • takes in info from body’s tissues
  • makes decisions
  • sends info back to muscles/body
  • orders body’s tissues
22
Q

Nervous system steps

A

*Nervous system=peripheral and CNS

*peripheral=autonomic(controls organs/glands)
autonomic=sympathetic(arouses) & parasympathetic(calms)

*CNS=somatic
somatic=sensory input
somatic-motor output(controls skeletal muscles)

23
Q

peripheral nervous system does what?

A
  • gathers info for transmitting

- CNS sends directions to other body parts

24
Q

what do the nerves do?

A
  • formed by bundles of axons

- link CNS with sensory receptors, muscles, glands

25
Q

what are 3 types of neurons

A
  • sensory neurons(sends messages from body’s tissues & sensory receptors INWARD)
  • motor neuron(sends instructions from cns OUTWARD to muscles and glands
  • Interneurons(processes info
26
Q

Somatic

A

muscle movement

27
Q

automatic

A

glands and internal organs

28
Q

sympathetic

A

arouses you(USES energy)

29
Q

parasympathetic

A

calms you(SAVES energy)

30
Q

what is a spinal cord?

A

a 2 way info travel system that connects peripheral system to brain

31
Q

increasing neural fibers does what?

A

sends up sensory info

32
Q

decreasing neural fibers does what?

A

sends back motor-control info

33
Q

what are reflexes?

A

automatic response to stimuli

34
Q

what is a simple reflex pathway?

A
  • 1 sensory, 1 motor(connected by interneuron)
  • brain not involved
    ex: touch flame=neural activity>sensory neuron>interneurons(in spinal cord)>activate motor neuron>muscle jerks out response
35
Q

what is a endocrine system?

A
  • in blood stream
  • affects other tissues(brain also)
  • glands of this system secrete hormones(influence sex,food,agression)
36
Q

how are the endocrine and CNS similar?

A

produce molecules,which act on receptors elsewhere

37
Q

the somatic nervous system requires what?

A

effort

38
Q

what is a simple reflex?

A

skin receptors receive pain signal=(bypasses brain) received by neuron(sensory)=reaches spinal cord=motor neuron sends out reflex

39
Q

sensory neurons are what?

A

afferent and sense receptors send signals through spinal cord

40
Q

motor neurons are what?

A

efferent and connect muscles=control movement

41
Q

what are interneurons?

A

receive info in spinal cord form sensory neurons and send signals back thru motor neurons

42
Q

how are the endocrine and CNS different?

A

endocrine=slow/last longer

CNS=fast/don’t last long

43
Q

what happens when your in danger?

A
  • ans orders adrenal glands to release epinephrine and norepinephrine (adrenaline and non-adrenaline)
  • fight or flight mode
44
Q

what is the pituitary gland?

A
  • most influential endocrine gland
  • in brain(hypothalamus)
  • releases growth hormone
  • releases oxytocin(hair bonding, social trust,etc.)
45
Q

what does pituitary secretions do?

A

directs other endocrine glands to release hormones

46
Q

what happens when you stress?

A

hypothalamus triggers>pituitary gland releases a hormone>adrenal glands flood body with cortisol(stress hormone)

47
Q

what is affected by the endocrine secretions?

A

the CNS

Psychology (2 decks)

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