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Biol 150 > Chapter 49 > Flashcards

Chapter 49 Flashcards

1
Q

Nerve Net

A
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2
Q

Bilateral Symmetty

A

Bilaterally symmetrical animals exhibit cephalization

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3
Q

Cephilization

A

Cephilization is the clustering of sensory organs at the front end of the body

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4
Q

Central Nervous System (CNS)

A
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5
Q

Peripheral Nervous System (PNS)

A
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6
Q

Reflex

A

A reflex is the body’s automatic response to a stimulus

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7
Q

Cerebrospinal fluid

A

The central canal of the spinal cord and the ventricles of the…

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8
Q

Glia in the CNS

Types of Glia Cells

A
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9
Q

Types of Glia Cells

Ependymal Cells

A
  • Ependymal cells promote circulation of the cerebrospinal fluid
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10
Q

Types of Glia Cells

Microglia

A
  • Microglia protect the nervous system from microorganisms
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11
Q

Types of Glia Cells

Oligodendrocytes

A
  • Oligodendrocytes and Schwann cekks form the myelin sheaths around axons
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12
Q

Types of Glia Cells

Astrocytes

A

Astrocytes provide structural support for neurons, regulate extracellular ions and neurotransmitters, and induce the formation of a blood-brain barrier that regulates the chemical environment of the CNS

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13
Q

Afferent Neurons

A
  • transmit nerves towards the central nervous system (CNS)
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14
Q

Efferent Neurons

A
  • transmit nerves away from the central nervous system (CNS)
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15
Q

Motor System

A

The motor system carries signals to skeletal muscles and is voluntary

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16
Q

Autonomic Motor System

A
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17
Q

Sympathetic Division

A
18
Q

Parasympathetic Division

A
19
Q

… Division

A
20
Q

Brainstem

A

The brainstem coordinates…

21
Q

Midbrain

A

The midbrains contains centers for reciept and integration of sensory information

22
Q

Pons

A
  • The pons regulates breathing centers in the medulla
23
Q
A
24
Q

Reticular Formation

A

THe core of the brainstem hasa diffuse network of neurons called the reticular formation

25
Q

Cerebellum

A

The cerebellum is important for coordination and error checking …

26
Q

THalamus

A
27
Q

Epithalamus

A

the epithalamus includes the pneal gland and generaes cerebrospinal fluid from blood

28
Q

Hypothalamus

A

regulates circadian rhythm

29
Q

Superchiasmatic Nuclei (SCN)

A

biological clock

30
Q

Cerebral Hemispheres

A

The cerebrum has right and left cerebral hemispheres

31
Q

Corpus Callosum

A

A thilck band of of axons called the corps callosum provides communication between the right and left cerebral cortices

32
Q

Cognition

A

Cognition is the …

33
Q

Lobes

A
  • frontal
  • temporal
  • occipital
  • parietal
34
Q

Lateralization

A

The differences in hemisphere function are called lateralization.

Lateralization is linked to handedness (left vs right handed)

35
Q

Limbic System

A

Emotions are generated and experienced by the limbic system

36
Q

Limbic System Structures

A
  • brainstem
    • amygdala
  • hippocampus
  • thalamus
37
Q

Amygdala

A

The amygdala is located in the temporal lobe and helps store an emotional experience as an emotional memory.

38
Q

Neural Plasticity

A

Neural plasticity describes the ability of the nervous system to be modified after birth

39
Q

Short-term Memory

A

Short-term memory is accessed via the hippocampus

40
Q

Long-term Memory

A

The hippocampus also plays a role in forming long-term memory, which is stored in the cerebral cortex

41
Q

Alzheimer’s Disease

A
  • Mental Deterioriation
  • Caused by the formation of neurofibrillary tangles and amyloid plaques in the brain

Biol 150 (34 decks)

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