Lecture Exam 4 - Chapter 12 Flashcards Preview

Anatomy & Physiology 151 > Lecture Exam 4 - Chapter 12 > Flashcards

Flashcards in Lecture Exam 4 - Chapter 12 Deck (104)
Loading flashcards...
1

- Basic parts of the Brain -

_________ – 2 hemispheres, form most of the front and middle of the brain

Cerebrum

2

- Basic parts of the Brain -

_________ – thalamus and hypothalamus

Diencephalon

3

- Basic parts of the Brain -

_________ – 2 hemispheres, form the posterior and inferior parts of the brain; much smaller than the cerebrum

Cerebellum

4

- Basic parts of the Brain -

_________ – leads to the spinal cord; contains the midbrain, the pons and the medulla oblongata

Brainstem

5

Three parts of the Brainstem:

-
-pons
-

-midbrain
-medulla oblongata

6

_________ :

-Hollow chambers that contain CSF (cerebral spinal fluid)
-Lined with ependymal cells

The Ventricles of the Brain

7

_________ ventricles – C-shaped chambers; one in each cerebral hemisphere

Lateral

8

Lateral ventricles – Separated by a membrane called the _________

septum pellucidum

9

_________ ventricle – connected to the lateral ventricles via the interventricular foramen (foramen of Monro)

Third

10

_________ ventricle – continuation of the 3rd ventricle via the cerebral aqueduct

Fourth

11

Fourth ventricle – continuation of the 3rd ventricle via the _________

cerebral aqueduct

12

Third ventricle – connected to the lateral ventricles via the _________

interventricular foramen (foramen of Monro)

13

_________ ventricle is continuous with the central canal of the spinal cord

4th

14

_________ fissure – runs medially and separates the two hemispheres of the cerebrum

Longitudinal

15

_________ fissure – separates the cerebrum from the cerebellum

Transverse

16

_________ – separates the frontal lobe and parietal lobe

Central sulcus

17

The _________ gyrus lies anterior to the central sulcus and the _________ gyrus lies posterior to the central sulcus

-precentral
-postcentral

18

The precentral gyrus lies anterior to the _________ sulcus and the postcentral gyrus lies _________ to the central sulcus

-central
-posterior

19

_________ :

-Most superficial part of the brain
-Controls everything that we’re aware of – muscle movements, communication, and memory

The Cerebral Cortex

20

The Cerebral Cortex :

-Most superficial part of the _________
-Controls everything that we’re aware of – _________ movements, communication, and _________

-brain
-muscle
-memory

21

The Cerebral Cortex :

-Made up of gray matter – cell bodies, _________, unmyelinated axons, _________, and _________ vessels
-Contains about 14 billion neurons, arranged in 6 layers
-Totals about 2-4mm thick
-Makes up 40% of the brain’s mass

-dendrites
-glial cells
-blood

22

The Cerebral Cortex :

-Made up of gray matter – cell bodies, dendrites, unmyelinated axons, glial cells, and blood vessels
-Contains about ___ billion neurons, arranged in ___ layers
-Totals about 2-4mm thick
-Makes up ___ of the brain’s mass

-14
-6
-40%

23

- Three functional areas the Cerebral Cortex -

_________ areas – control voluntary functions

Motor

24

- Three functional areas the Cerebral Cortex -

_________ areas – conscious awareness of sensation

Sensory

25

- Three functional areas the Cerebral Cortex -

_________ areas – integration

Association

26

Each hemisphere controls or receives information from the _________ (_________) side of the body

-opposite
-contralateral

27

_________ cortex – (precentral gyrus)

Primary (somatic) motor

28

_________ cortex generates neural impulses that control the execution of movement

primary motor

29

_________ cortex – anterior to the precentral gyrus

Premotor

30

_________ cortex – Controls learned motor skills – like playing an instrument or typing (it’s the memory of muscle activity)

Premotor