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Anatomy > Brain > Flashcards

Brain Flashcards

1
Q

What are the major parts of the brain?

A

Cerebrum, Cerebellum, Brainstem

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2
Q

Brain weighs?

A

3 - 3.5 pounds

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3
Q

the Cerebrum is ___% of the brain volume?

A

83%

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4
Q

cerebellum contains ___% of the neurons?

A

50%

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5
Q

what is the Rostral? Caudal?

A

Rostral = towards forehead Caudal = tail, or towards the back

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6
Q

Longitudinal fissure?

A

separates two cerebral hemispheres

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7
Q

Cerebral cortex?

A

“brain bark” 3mm layer of gray matter with extensive folds to increase surface area

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8
Q

what are gyri and sulci/fissures?

A

Gyri = ridges Sulci/Fissures = depressions

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9
Q

gray matter contains?

A

neural cell bodies

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10
Q

white matter contains?

A

myelinated axons

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11
Q

Anatomy of the brain (pic)

A
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12
Q

Gray matter are the?

White matter are the?

A

gray = compters

white= cables

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13
Q

Membranes that envelope the CNS?

A

Dura mater: dense conective tissue, periosteal layer, meningeal layer

Arachnoid layer: thin membrane, contains CSF in subarachnoid space

Pia mater: in direct contact with the brain, saran wrap

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14
Q

Cranial Meninges

A
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15
Q

How many ventricles of the brain are they and what is thier main purpose?

A

4, produce cerebral spinal fluid

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16
Q

Ventrilce (pic)

A
17
Q

how much CSF is produced by the brain a day?

A

500 mL

18
Q

flow of spinal fluid?

A
19
Q

Forebrain (pic)

A
20
Q

Cerebrum lobes and there purpose?

A

Frontal: voluntary, planning, mood, social judgment

Parietal: sensory reception and integration of sensory information

Occipital: visual

Temporal: hearing, smell, learning, memory, emotional behaivor, taste

21
Q

the frontal lobe has a _____ thought function?

A

Higher

22
Q

The transverse sulcus separates?

A

occipital lobe and cerebellum

23
Q

left brain VS. right brain

A

Left: language and reasoning

Right: artistic

24
Q

the corpus callosum does what?

A

connects the two hemispheres

25
Q

Thalamus does?

A

recieves nearly all sensory information on its way to the cerebral cortex

26
Q

hypothalamus does?

A

hormone secretion and pituitary gland

thermoregulation

food and water intake

sleep/memory

27
Q

epithalamus?

A

pineal gland: third eye?

28
Q

the pons does what?

A
  • relays signals from cerebrum to cerebellum
  • aids with sleep, hearing, taste, eye and facial movements, bladder control, swollowing and respiration
29
Q

hindbrain is and does what?

A

cerebellum: folia or gyri, muscular coordination, 10% of brain volume and 50% of neurons

right and left hemispheres are connected by thevermis

30
Q

brain overview?

A

Frontal Lobe - higher thought function
Temporal Lobe – sensation perception
Occipital Lobe - vision
Parietal Lobe – s0matosensory
Cerebellum – primary motor cortex
Superior / Inferior Colliculus – visual reflexes
Thalamus – sensory integration
Pituitary – hormone secreation / growth
Pineal – circadian rhythms
Medulla Oblongata – autonomic functioning / heart

31
Q

how many cranial nerves are there?

A

12

32
Q

Cranial nerve locations (pic)

A
33
Q

Cranial Nerves Mnemonic?

A

On - olfactory
Occasion – optic
Our – oculomotor
Trusty - trochlear
Truck - trigeminal
Acts - abducens
Funny - Facial
Very - Vestibulocochlear
Good - glossopharyngeal
Vehicle - vagus
Any - accessory
How - hypoglossal

34
Q

Cranial nerves and thier uses?

A

Olifactory: sensory information from nose

Optic Nerve: Visual sensory information

Oculomotor nerve: moves the eye, superior orbital fissure

Trochlear nerve: eye movement, oblique muscle

Trigeminal nerve: sensory nerve to the face, touch, pain, temperature

Abducens nerve: eye movement, lateralrectus muscle

Facial nerve: facial exressions, 2/3 taste, salivary glands, tear ducts, nasal and palatine glands

Vestibulocochlearnerve: hearing and balance

Glossopharyngeal nerve: swallowing, gagging, 1/3 tounge, control of BP

Vagus nerve: speech, parasympathetic, pretty much everything else

Accessory nerve: swalloing, head, neck, shoulder movement

Hypoglossal nerve: speech, food, swallowing

35
Q
A

Anatomy (7 decks)

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