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A&P Lab Practical 1 > The Brain > Flashcards

The Brain Flashcards

1
Q

Gyrus (gyri)

A

Convoluted ridges on surface of brain

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2
Q

Sulcus (sulci)

A

groove in surface of brain.

Provides a larger surface area

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3
Q

Central sulcus

A

Separates frontal and parietal lobes

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4
Q

Precentral Gyrus

A

In front of central sulcus

Coordinates motor movement

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5
Q

Postcentral gyrus

A

Behind central sulcus

Coordinates sensory activity

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6
Q

Frontal Lobes

A

Function: Motor skills, higher-level thinking, cognitive function

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7
Q

Parietal Lobes

A

Gives us perspective and helps us understand touch, space, & volume

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8
Q

Temporal Lobes

A

Need to figure out

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9
Q

Occipital Lobes

A

Related to vision

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10
Q

Lateral fissure

A

separates cerebrum & cerebellum

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11
Q

Cerebellum

A

Voluntary motor movement and balance

Receives input from other areas of brain

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12
Q

Dura Mater

A

Meninges that cover the brain

Function: Protection

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13
Q

Falx Cerebri

A

Part of dura mater. Sits in longitudinal fissure between hemispheres

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14
Q

Longitudinal Fissure

A

Separates two hemispheres on brain

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15
Q

Superior sagittal sinus

A

Little “hole” looks like a triangle, formed from the falx cerebri
Drains venous blood

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16
Q

Corpus collosum

A

Band of nerves fibers that separate hemispheres. Help the two sides to communicate

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17
Q

Lateral ventricles

A

Contain CSF

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18
Q

Septum Pellucidum

A

Vertical membrane separating left and right lateral horns

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19
Q

Fornix

A

Connects the hippocampus to the hypothalmus

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20
Q

Thalamus

A

Regulates sleeping & wakefulness states

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21
Q

Hypothalamus

A

Body’s thermostat

22
Q

Intermediate mass

A

Little section in the middle of the thalamus

Function: Band of grey matter joining the thalami

23
Q

Third ventricle

A

Filled with CSF to protect the brain

24
Q

Internal capsule

A

White matter

Function: Major route by which cortex connects with brainstem

25
Q

Cerebral cortex

A

Gray Matter

26
Q

Putamen

A

Part of the lentiform nucleus (lateral)

27
Q

Globus Pallidus

A

Regulation of voluntary movement

28
Q

Insula (isle of Riel)

A

Fifth lobe, under temporal lobe

Function: Taste perception

29
Q

Pineal body

A

Secretion of melatonin

30
Q

Corpora Quadrigemina

A

Four “bumps” called superior colliculi and inferior colliculi
Function: Reflex centers for Superior - vision, and inferior - sound

31
Q

Medulla

A

Controls autonomic functions such as heart rate

32
Q

Pituitary Gland

A

Small endocrine organ

Function: Involved in growth hormone

33
Q

Infundibulum

A

(Pituitary stalk)

Function: Connects gland to base of brain

34
Q

Mammillary Body

A

Involved with olfactory reflexes

35
Q

Cerebral peduncles

A

Large bundle of nerve fibers

Function: Main connection from cerebral hemispheres to brain stem

36
Q

Pons

A

Helps relay messages from brain to spinal cord

37
Q

Olfactory Bulb

A

Relays sensory messages to olfactory tract (sense of smell)

38
Q

Olfactory Tract

A

Sensory - smell

39
Q

Optic nerve

A

Sensory, afferent, vision

40
Q

Optic chiasm

A

Where the signals from each eye meet to go to the brain

41
Q

Optic tract

A

Sensory; afferent; vision

42
Q

Trigeminal nerve

A

Responsible for sensation in the face

43
Q

Oculomotor Nerve

A

Helps direct eyeball

44
Q

Abducens Nerve

A

Motor nerves of eye

45
Q

Trochlear nerve

A

Eye movement - down & lateral

46
Q

Hypoglossal nerve

A

Motor nerve below tongue

47
Q

Spinal accessory nerve

A

Rotation of head

48
Q

Choroid plexus

A

Where CSF is produced

49
Q

Fourth ventricle

A

Contains CSF for protection

50
Q

Arbor Vitae

A

“tree like” white matter in cerebellum

Sensory and motor info to and from cerebellum

51
Q

parietal-occipital sulcus (human brain only)

A

Separates parietal and occipital lobes

A&P Lab Practical 1 (1 decks)

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