Brain structures and functions Flashcards Preview

Nervous system - anatomy > Brain structures and functions > Flashcards

Flashcards in Brain structures and functions Deck (24)
Loading flashcards...
1

cerebral cortex

-motor, sensory and association areas
-all neurons in cortex are interneurons and not to be confused with sensory and motor neurons
-two hemispheres

2

fissure

deep groove

3

gyri

folds

4

sulci

depressions separating gyri

5

What is the function of the thalamus?

-relay and processing center for information
-information is sorted and edited

6

What is the function of the hypothalamus?

-hormones
-homeostasis

7

What is the function of the midbrain?

-conduction between higher brain centers and spinal cord
-regulates visual reflexes
-controls alertness

8

What is the function of the pons?

--conduction between higher brain centers and spinal cord-assist medulla in breathing
-reticular formation
-Cranial nerves:V-VII
trigeminal & facial

9

What is function of medulla oblongata?

-conduction between higher brain centers and spinal cord
-sensory nuclei controlling skin and proprioceptors
-major (motor) center controlling autonomic functions: heart rate, resp rate, blood vessel diameter etc.
-Cranial nerves VII-XII

10

What is function of cerebellum?

-process information from cerebral motor cortex and vision and equilibrium pathways
-motor control and coordination
-muscle memory

11

limbic system components

hypothalamus, mammillary bodies. hippocampus, fornix, amygdaloid body

12

amygdaloid body

-heart rate in fight or flight response
-linking emotions with memories

13

hippocampus

-learning
-retrieval of long-term memories

14

basal nuclei

-caudate and lentiform nucleus
-gray matter
-subconscious control of skeletal muscle toon
-coordinate learned movement patterns
-povide general pattern and rythym for movements of trunk and limbs
(example: swinging arms when walking or unconsciously stabilizing arm when picking up pencil)

15

superior colliculi (corpora quadrigemina)

-located at root of midbrain
-receives visual inputs from thalamus
-in response to visual stimuli: controls reflex movements of the eyes, head, and neck

16

inferior colliculi (corpora quadrigemina)

-located at root of midbrain
-receives auditory input from medulla and pons
-in response to auditory stimuli: controls reflex movements of head, neck and trunk

17

What is the basic function(s) of the frontal lobe?

-executive function
-motor function, problem solving, spontaneity, memory, language, initiation, judgement, impulse control, and social and sexual behavior

18

What is the basic function(s) of the parietal lobe?

-touch
-integrates sensory info

19

What is the basic function(s) of the temporal lobe?

-high level auditory processing

20

What is the basic function(s) of the occipital lobe?

-vision center

21

What structures make up the brainstem?

-medulla oblongata
-pons
-midbrain

22

What structures make up the hindbrain?

-medulla oblongata
-cerebellum
-pons

23

What structures make up the forebrain?

-cerebrum
-diencephalon

24

What is included in the midbrain?

-cerebral aqueduct
-quadragemini (superior & inferior colliculus)