Neuroanatomy

Question 0

What is the blood supply for the posterior circulation of the brain

Answer 0

Vertebral arteries

Question 1

What is the blood supply of anterior portion of the brain

Answer 1

Internal carotid

Question 2

What is the direct continuation of the internal carotid

Answer 2

Middle cerebral

Question 3

What are the major lobes of the brain

Answer 3

Frontal, parietal, temporal, occipital, limb if

Question 4

What does the telencephalon contain

Answer 4

Cerebral cortex, white matter, basal ganglia

Question 5

What does the diencephalon contain

Answer 5

Pineal gland, dorsal thalamus, sun thalamus, hypothalamus

Question 6

What does the mesencephalon contain

Answer 6

Brainstem

Question 7

What is the function of the pre central gyrus

Answer 7

Primary motor area

Question 8

What is the function of the post central gyrus

Answer 8

Primary somatosensory cortex and gustatory cortex

Receive and interpret sensations of pain, temp, touch and pressure from contralateral side of body

Question 9

What is the function of the frontal cortex

Answer 9

Supplementary motor area

Question 10

What is the function of the parietal lobe

Answer 10

Somatosensory association area

Question 11

What is the function of theTemporal lobe

Answer 11

Auditory and auditory association area

Question 12

What is the function of the occipital lobe

Answer 12

Visual cortex and visual association area

Question 13

What is the corpus callosum

Answer 13

Major commisure, connection between cortical areas of similar function in both hemispheres

Question 14

What makes up the corpus striatum

Answer 14

Caudate nuclues and putamen

Question 15

What makes up the lentiform nucleus

Answer 15

Putamen and globus pallidus

Question 16

What is th function of the thalamus

Answer 16

Receives and processes pre cortical input from all sensory systems and conveys to cerebral cortex

Question 17

What is the function of the basal ganglia

Answer 17

Role in initiation and execution of motor activity

Question 18

What is the direct continuation of internal carotid

Answer 18

Middle cerebral artery

Question 19

What supplies anterior circulation

Answer 19

Internal carotid

Question 20

What supplies posterior circulation

Answer 20

Vertebral arteries

Question 21

Anterior cerebral artery occlusion

Answer 21

Sensorimotor function loss in lower limbs and bladder weakness

Question 22

Middle cerebral artery occlusion leads to

Answer 22

Sensorimotor function loss in face and hands

Question 23

Posterior cerebral artery supplies?

Answer 23

Occipital lobes and branch of thalamus

Question 24

Posterior cerebral artery occlusion

Answer 24

Visual disturbances, possible sensory loss on one side of the body if thalamus is deprived of blood

Question 25

What makes up the mesencephalon

Answer 25

Tectum, tegmentum, basis pedunculi

Question 26

What makes up the Tectum of the mesencephalon in the brainstem

Answer 26

Quadrigrminal plate: 2 superior colliculus 2 inferior colliculus

Question 27

What makes up the tegmentum of the mesencephalon

Answer 27

Red nuclues, nucleus of cn3 and CN 5, reticular formation

Question 28

What does the death of substantia nigra lead to

Answer 28

Parkinson's, bradykinsea and hypokinesia (difficulty in initiating and performing voluntary movement)

Question 29

What makes up the cerebral peduncle

Answer 29

Tegmentum and basis pedunculi

Question 30

What tracts does the basis peduncle contain

Answer 30

Corticospinal and corticopotine

Question 31

What's the blood supply of the brainstem

Answer 31

Posterior communicating artery Posterior cerebral artery Superior cerebellar artery

Question 32

Where is the cerebral aqueduct

Answer 32

Between tectum and tegmentum | Connects 3rd and 4th ventricle

Question 33

What does a blockage in the cerebral aqueduct cause

Answer 33

Hydrocephalus

Question 34

What is blood supply of the pons

Answer 34

Basilar artery

Question 35

What is the function of the pons

Answer 35

Sensory input fro face and sends motor neurons to muscles of face for voluntary and involuntary facial expression

Question 36

Three ways the cerebellum differed from the cerebrum

Answer 36

1. Gyri are finer 2. Hemispheres posses ipsilateral representation of body 3. None of its activity contribute to consciousness

Question 37

Draw the cerebellum

Answer 37

``` Includes: Quadr angular lobe Anterior lobe, posterior lobe Horizontal fissure Lobules Vermis Primary fissure ```

Question 38

Functions of cerebellum

Answer 38

1. Maintain posture and balance 2. Maintain muscle tone 3. Coordinate smooth movements by influencing timing and force of contractions of voluntary muscles

Question 39

What is cerebellum separated by

Answer 39

Tentorium cerebelli

Question 40

Function of anterior lobe

Answer 40

Maintains coordination of limb movements while being coordinated Regulation of muscle tone

Question 41

Function of flucculonodular node

Answer 41

Role in maintenance of posture, balance and eye movements | Receives input from vestibular system

Question 42

What is function of posterior lobe of cerebellum

Answer 42

Initiations if voluntary motor activity | Stores all sequential components of skilled movements

Question 43

What are the four cerebellar nuclei

Answer 43

1. Dentate nucleus: most lateral and largest, input from lateral part of hemisphere 2. Emboliform 3. Globose (both interposed nuclei) 4. Fastugial nucleus: most medial, input from vermis and flucculonodular lobes)