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Year 1-Mubarak-Tissue > Tissues 4: Nerve > Flashcards

Tissues 4: Nerve Flashcards

1
Q

Each hemisphere of the brain is coventially sperated into 4 functionally distinct regions Name the regions

A

Frontal Lobe Parietal Lobe Temporal Lobe Occipital Lobe

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2
Q

Lable the diagram below add pic

A

add pic

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3
Q

What are the ridges in the brain called? What are the valleys in the brain know as?

A

gyri-ridges Sulci-Valleys add pic

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4
Q

What does the brainstem consist of?

A

Midbrain Pons Medulla( in descending order) add pic

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5
Q

What is the role of the cerebeluum?

A

Important role in motor coordination, balance & posture

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6
Q

Draw a unipolar Nuerone

A

1 axonal projection add pic

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7
Q

Draw a Psuedo-unipolar nuerone

A

Single axonal projection that divides into two add pic

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8
Q

Draw a Bi-polar nuerone

A

2 projections from cell body add pic

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9
Q

Draw a multipolar nuerone?

A

Multipolar: Numerous projections from cell body add pic

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10
Q

Where are purkinje cells found?

A

cerebellum

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11
Q

Where are golgi cells found?

A

cerebellum

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12
Q

Draw a pyrimidal, purkinje and golgi cell?

A

add pic

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13
Q

Name some features of a Nuerone?

A

Excitable cells of CNS Heterogeneous morphology Non-dividing cells

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14
Q

What is the function of a nuerone?

A

A mature nueron is a non-dividing excitable cell whose main function is to recieve and transmit information in the form of electrical signals.

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15
Q

Name some distinguishing physical features which all nuerones share?

A

Soma(cell body) Axon Dendrites

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16
Q

What part of the nuerone is covered in myelin?

A

Axon

17
Q

Are dendrites covered in myelin?

A

no

18
Q

Lable the diagrom of a nuerone add pic

A

add pic

19
Q

What cells are the most abundant within the CNS and are able to proliferate?

A

Astrocytes add pic

20
Q

Name some functions of Astrocytes?

A

Structural cells

Cell repair

Immune cells & are considered ‘facultative macrophages’

Neurotransmitter release & reuptake

21
Q

What are the names of the myelin producing cells of the CNS?

A

Oligodendrocytes Schwann Cell

22
Q

What is the name of the myelinating cell of the CNS

A

Oligodendrocytes

23
Q

What is the name of the myelinating cell of the peripheral nervous system

A

Schwann Cell

24
Q

Sketch a oligodendrocyte and Schwann cell

A

add pic

25
Q

What are the differences between oligodendrocytes and Schwann cells?

A

One oligodenrodcyte myelinates many axons One Schwann cell myelinates one axon segment Oligodendrocytes are found in the CNS Schwann cells are found in the peripheral nervous system

26
Q

What is the role of Microglial cells?

A

Specialised cells - similar to macrophages Perform immune functions in CNS

27
Q

What is the role of Ependymal cells

A

Epithelial cells - line fluid filled ventricles Regulate production & movement of cerebrospinal fluid (CSF)

28
Q

Sketch microglial and ependymal cells

A

add pic

29
Q

Name the 5 main cells of the CNS?

A

Neurone- Excitable cells of CNS Responsible for electrical transmission

Oligodendrocyte Glial cell - produces myelin

Astrocyte- Most abundant cell type in CNS

Microglia cells- Neuronal macrophages

Ependymal Epithelial cells lining the ventricles

Four different types of glial cells found in the central nervous system: ependymal cells, astrocytes, microglial cells, and oligodendrocytes

30
Q

What is the function of the frontal lobe

A

The frontal lobes are involved in motor function, problem solving, spontaneity, memory, language, initiation, personality, judgement, impulse control, and social and sexual behavior PERSONALITY

31
Q

What is the role of the occipital lobe?

A

Processing of visual information

32
Q

What is the role of the Temporal lobe?

A

Processing sensory input. The temporal lobe is involved in primary auditory perception, such as hearing, and holds the primary auditory cortex. Contains important structures such as the hippocampus( short term memory), the amygdala (behavior) and wernike’s area (auditory perception and speech)

33
Q

Role of the perietal lobe

A

It functions in processing sensory information regarding the location of parts of the body as well as interpreting visual information and processing language and mathematics.

34
Q

What is the role of the cerebellum?

A

Has an important role in motor coordinationn, balance and posture

35
Q

Add part about Action potential

A

Add part about action potentiaL

36
Q

Add part about synapse

A

Add part about synapse

Year 1-Mubarak-Tissue (11 decks)

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