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Leslie Ramos > Nervous System > Flashcards

Nervous System Flashcards

1
Q

Function of Nervous System

A

Detect impulses from the senses and control center of the body

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2
Q

Major Organs of Nervous System

A

Brain, spinal cord, senses and nerves

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3
Q

Difference between Neurons and Neuroglia

A

Neurons (make 10%) and neuroglia (make 90%)

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4
Q

Dendrite

A

Receive the nerve impulses from the senses or another neuron

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5
Q

Soma

A

Body of the neuron that holds the nucleus

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6
Q

Schwann Cells

A

Produce Myelin

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7
Q

Node of Ranvier

A

Impulses jump from node to node, which increase speed of impulse

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8
Q

Myelin

A

Insulates the axon

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9
Q

Axon

A

Passageway for nerve impulses after cell body; end in axon terminal

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10
Q

Axon Terminal

A

Button-like endings of axons through which axons make contact with other nerve cells

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11
Q

CSF (Cerebrospinal Fluid)

A

Protects the brain by preventing the it from contacting the skull

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12
Q

Cerebrum

A

Largest part of brain, divided into 2 hemispheres

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13
Q

Thalamus

A

2 bulb-shaped halves in the center of the brain,

relays sensory impulses

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14
Q

Hypothalamus

A

Controls hormones released by pituitary gland, responsible for autonomic processes

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15
Q

Brainstem

A

Located between the cerebrum and spinal cord

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16
Q

Cerebellum

A

Second largest part of brain, responsible for coordinating the “involuntary” movements

17
Q

Spinal Cord

A

31 pairs of spinal nerves branch out from the spinal cord, connecting to all parts of the body

18
Q

Frontal Lobe

A

Voluntary movements, decision-making, memory and verbal communication

19
Q

Parietal Lobe

A

Sensations and body position

20
Q

Occipital Lobe

A

Visual processing- vision & memory of objects

21
Q

Temporal Lobe

A

Memory, comprehension & pronunciation of words, smell/sound, emotional association of memories

22
Q

Midbrain (Mesencephalon)

A

Relays info to cerebrum, controls body movements and postures

23
Q

Pons (Bridge)

A

Carries info from one side of brain to the other and central control of breathing

24
Q

Medulla Oblongata

A

Transmits between spinal cord and the brain,

controls blood pressure, heart rate, swallowing, and coughing

25
Q

Cochlea

A

A bony snail-shaped structure containing membranes filled with fluid in the ear

26
Q

Cornea

A

Made of thick, transparent tissue on the eye

27
Q

Pupil

A

The opening in the center of the iris

28
Q

Iris

A

Located behind the cornea (colored part)

29
Q

Retina

A

Located in the back of the eye

30
Q

Lens

A

A semi-solid disc that directs light waves towards the retina

31
Q

Farsighted vs Nearsighted

A

Farsighted: far things are clear, vice versa

32
Q

Malleus

A

(hammer)

33
Q

Incus

A

(anvil)

34
Q

Stapes

A

(stirrup)

35
Q

Papillae

A

The tongue is filled with bumps (many are tastebuds)

Leslie Ramos (8 decks)

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