Functional Anatomy Of The Brain + Cranial nerves Flashcards Preview

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Flashcards in Functional Anatomy Of The Brain + Cranial nerves Deck (98)
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1

What does the frontal lobe do?

Reasoning
Behaviour
Mood
Movement

2

What is the function of the temporal lobe?

Hearing
Memory (hippocampus)
Semantics

3

What is the function of the parietal lobe?

Sensory - pain, pressure, temperature

4

What is the function of the occipital lobe?

Sight

5

What is the corpus callosum.

Connects the cerebral hemispheres and allows communication between them

6

What is the amygdala and what does it do?

It is a group of neurons located deep to the medial temporal lobes
Have a primary role in processing and memory of emotional reactions

7

What is the general role of the limbic system?

Supports a variety of functions including emotion, behaviour and long-term memory

8

What is the function of the basal ganglia?

Co-ordinates gross, automatic muscle movements and regulates muscle tone

9

Which brain regions make up the diencephalon?

Epithalamus
Thalamus
Hypothalamus
Subthalamus

10

What is the function of the epithalamus?

Consists of the
- pineal gland (melatonin secretion - biological clock and sleepiness)
- habenular nuclei (emotional response to olfaction)

11

What is the function of the thalamus?

Relays sensory information to the cerebral cortex
Includes nuclei involved in voluntary, motor and arousal actions
Anterior nucleus functions in emotions, memory, cognition and awareness

12

Describe the function of the subthalamus

Contains
- subthalamic nuclei
- portions of basal substantia nigra
- portions of red nucleus
Helps control body movements

13

Describe the function of the hypothalamus

Controls and integrates ANS and pituitary gland activities
Regulates emotional and behavioural patterns
Controls body temperature
Regulates eating and drinking behaviour

14

What structures make up the midbrain?

Midbrain
Superior colliculus
Inferior colliculus

15

What is the function of the midbrain?

Relays motor impulses from cerebral cortex to the pons
Relays sensory impulses from the spinal cord to thalamus

16

What is the function of the superior colliculus?

Co-ordinates movement of the eyeballs in response to visual and other stimuli

17

What is the function of the inferior colliculus?

Co-ordinates movement of the head and trunk in response to auditory stimuli

18

What brain parts make up the hindbrain?

Cerebellum
Pons
Medulla oblongata

19

What is the function of the cerebellum?

Compares intended movements to what is actually happening
- co-ordinates smooth and complex movements
Regulates posture and balance

20

What is the function of the pons?

Relays impulses from one side of cerebellum to the other, and from medulla to midbrain
Contains nuclei of origin for CNV, VI, VII, and VIII

21

What is the function of the medulla oblongata?

Relay between brain and spinal cord
Reticula formation functions in consciousness and arousal
Vital centres regulate heart beat, breathing and blood vessel diameter
Other centres co-ordinate vomiting, swallowing, coughing, sneezing and hiccuping
Contains nuclei of origin for CNIX, X, XI and XII

22

What does the olfactory nerve do?

Sensory - sense of smell

23

What does the optic nerve do?

Sensory - sight

24

What does the oculomotor nerve do?

Motor
- eyelid movement
- eyeball movement (medial, superior and interior rectus and inferior oblique)
- pupillary constriction
- accommodation of lens for near vision

25

What does the trochlear nerve do?

Motor
- eyeball movement (superior oblique)

26

What does the trigeminal nerve do?

Both sensory and motor
- sensory to the face (opthalamic, maxillary and mandibular)
- motor to the muscles of mastication (masseter, temporal is, pterygoid)

27

What does the abducens nerve do?

Motor
- movement of eyeball (lateral rectus)

28

What does the facial nerve do?

Both
- sensory to skin of external ear and anterior tongue
- motor to muscles of facial expression and helps secrete saliva and tears

29

What does the vestibulocochlear nerve do?

Sensory
- hearing and equilibrium

30

What does the glossopharyngeal nerve do?

Both sensory and motor
- motor is for swallowing and speech and secretion of saliva
- sensory is to carotid body and sinus and taste for posterior tongue