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Anatomy > Chp 13 Cerebrum > Flashcards

Chp 13 Cerebrum Flashcards

0
Q

What are convolutions of the cerebrum separated by sulci?

A

Gyri (pg. 78)

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1
Q

What is the largest part of the brain forming 2 hemispheres?

A

the cerebrum (pg. 78)

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2
Q

The cerebrum contains various large what?

A

fissures & large sulci (pg. 78)

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3
Q

What is one of the 4 major fissures that separate the right and left hemispheres and is occupied by the falx cerebri?

A

The longitudinal fissure (pg. 78)

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4
Q

Out of the 4 fissures which one separates the cerebrum and cerebellum and is occupied by the tentorium cerebelli?

A

The transverse fissure or sulcus (pg. 78)

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5
Q

Which of the 4 major fissures separates the temporal lobe from the rest of the cerebrum superior to it?

A

The lateral fissure or sulcus (pg. 78)

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6
Q

Which of the 4 major fissure/sulcus separates the pre-central (motor) and post-central (sensory) gyri?

A

The central sulcus (pg. 78)

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7
Q

What are the 4 main lobes of the cerbrum?

A 
Frontal
Parietal 
Occipital 
Temporal
(pg. 78)
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8
Q

What is the 5th lobe of the cerebrum that lies within the depths of the lateral sulcus?

A

The insula (pg. 78)

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9
Q

What is the primary motor cortex of the cerebrum?

A

The pre-central gyrus (pg. 79)

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10
Q

Where is the pre-central gyrus located?

A

anterior to the central sulcus (pg. 79)

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11
Q

What is the primary sensory cortex?

A

the postcentral gyrus (pg. 79)

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12
Q

Where does the postcentral gyrus lie?

A

posterior to the central sulcus (pg. 79)

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13
Q

What constitutes the central gray matter of the cerebrum?

A

The basal ganglia (nuclei) (pg. 79)

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14
Q

What does the basal ganglia do?

A

They control movement and posture. This is where diseases such as Parkinson’s and Huntington’s chorea cause disturbances in voluntary muscular control. (pg. 79)

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15
Q

What is the most important sensory relay center of the brain that sends incoming impulses from the receptors of the body to the cerebral cortex?

A

The Thalamus (pg. 79)

16
Q

What structure lies between and is associated with the optic chiasma, mammillary bodies, and pituitary gland?

A

The hypothalmus (pg. 79)

17
Q

Where do optic nerves (CN II) cross?

A

Optic chiasma (pg. 79)

18
Q

What is the sensory synaptic station that is part of the limbic system?

A

Mammillary bodies (pg. 79)

19
Q

What projects inferior to the hypothalamus and secretes many horomones?

A

Pituitary gland (pg. 79)

20
Q

What are the functions of the Hypothalamus in the regulation of visceral activity?

A
  1. Body Temp
  2. Carbohydrate and lipid metabolism
  3. Sleep, sexual activity, and emotion (pg. 79)
21
Q

What makes up the brain stem from superior to inferior?

A

Midbrain
pons
medulla oblongata (pg. 79)

22
Q

What are the four elevations that are arranged as two pairs located at the roof (dorsal surface) of the midbrain called?

A

The corpora quadrigemina (pg. 80)

23
Q

What is the pair of elevations of the corpora quadrigemina that are involved in the pathway of vision?

A

Superior colliculi (pg. 80)

24
Q

What is the pair of elevations of the corpora quadrigemina that are involved in the pathway of hearing?

A

Inferior colliculi (pg. 80)

25
Q

What acts as a bridge connecting the right and left cerebellar hemispheres and relays impulses from the cerebral cortex to the cerebellum?

A

The pons (pg. 80)

26
Q

What is the part of the brain that is directly continuous with the spinal cord and contains most of the ascending and descending tracts of the spinal cord?

A

The medulla oblongata (pg. 80)

27
Q

The medulla oblongata represents an area in which tract fibers lie called what?

A

Pyramids (pg. 81)

28
Q

An area inferior to to the pyramids is where the pyramidal tracts cross over to the contralateral side called what?

A

Pyramidal decussation (pg. 81)

29
Q

Other tract fibers can cross where?

A

in the spinal cord or in the brain itself (pg. 81)

30
Q

The medulla oblongata contains several nuclei involved in the regulation of vital body activities such as?

A

Respiratory
Cardiac (heart rate)
Vasomotor (blood pressure) (pg. 81)

31
Q

This structure connects with the midbrain, pons, and medulla oblongata via the superior, middle, and inferior cerebellar peduncles? 2 names?

A

Cerebellum (little brain) (pg. 81)

32
Q

The cerebellum consists of 2 hemispheres separated by what?

A

a median vermis (pg. 81)

33
Q

The outer layers of the cerebellum contain what?

A

Folia (seperated by fissures)

(folia= leaves) pg. 81

34
Q

Internally the cerebellum has white matter branching in the form of a tree called what?

A

The arbor vitae (pg. 81)

35
Q

What are the functions of the cerebellum?

A
  1. coordination of muscular activity
  2. regulation of muscle tone
  3. maintenance of equilibrium (pg. 81)

Anatomy (10 decks)

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