Flashcards in Lecture Exam 4 - Chapter 12 Deck (104)
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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
