Exam 1 structure functions

Question 1

Meninges

Answer 1

Connective tissue membranes

Question 2

Dura matter

Answer 2

thickest most external meninge

Question 3

Longitudinal Fissure

Answer 3

Separates 2 cerebral hemispheres

Question 4

Falx cerebri

Answer 4

Located in longitudinal fissure, divides two hemispheres

Cinsig: Brain tumors can cause falx cerebri to push on opposite side of brain

Question 5

Cerebellomedullary cistern

Answer 5

Located between cerebellum and medulla

Spinal tap occurs here to collect CSF

Question 6

Basilar a

Answer 6

Major blood supply to brain

Question 7

Vertebra a

Answer 7

form basilar a

Question 8

Internal carotid a

Answer 8

With bailar a form circle of willis; other main blood supply

Question 9

Caudal communicating a

Answer 9

From each int carotid course cd and join terminal br of basilar a

Question 10

Rostral cerebral a

Answer 10

Supplies medial surface of cerebrum

Question 11

Middle cerebral a

Answer 11

Supplies lateral surface of cerebellum

Question 12

Caudal cerebral a

Answer 12

Supplies caudal surface of cerebrum, diencephalon, rostral mesencephalon

Question 13

Rostral cerebellar a

Answer 13

Supplies rostral cerebellum/cd midbrain

Question 14

Caudal Cerebellar a

Answer 14

Supplies caudal cerebellum

Question 15

Dorsal Sagital

Answer 15

Venous drainage

Question 16

Frontal lob

Answer 16

Motor cortex/behavior

Question 17

Parietal lobe

Answer 17

Motor/sensory cortex

Question 18

Occipital lobe

Answer 18

Visual cortex

Question 19

Temporal lobe

Answer 19

Auditory cortex/behavior

Question 20

Olfactory bulb

Answer 20

Olfaction/ smell

Question 21

Piriform lobe

Answer 21

Olfaction/ smell

Higher center olfaction

Question 22

Cerebral Cortex

Answer 22

Gray matter; six layers of neuronal cell bodies

Question 23

Corona Radiata

Answer 23

White matter; contains processes of neurons coursing to and from overlying cortex

Question 24

Transverse cerebral fissure

Answer 24

Separates cerebellum from cerebrum (space)

The tentorium cerebelli is located here

Question 25

Choroid plexus ( cerebellum)

Answer 25

Passive/active secretion of CSF

( lateral, third, and fourth ventricles)

Question 26

Middle cerebellar peduncle

Answer 26

Pons; afferent axons to cerebellum from brainstem/spinal cord

Question 27

Caudal cerebellar peduncle

Answer 27

Medulla; afferent axons to cerebellum from brainstem/spinal cord

Question 28

Rostral cerebellar peduncle

Answer 28

Mesencephalon; efferent axons from cerebellum to brainstem

Question 29

Vermis

Answer 29

central median region, associated with trunk muscles (posture) and proximal limb movement

Question 30

Folia

Answer 30

small folds on the surface of the cerebellum (cerebellar cortex)

Question 31

Medulla of cerebellum

Answer 31

White matter/ arbor vitae

Question 32

Diencephalon

Answer 32

relays information to the cerebral cortex; alertness/awareness

Question 33

Thalamus

Answer 33

Sensory Relay

except for olfactory

Question 34

Hypothalamus

Answer 34

ANS/homeostasis/endocrine function

parts are:

Question 35

Optic chiasm

Answer 35

Vision

Question 36

Optic Tracts

Answer 36

Vision

Question 37

Infundibulum

Answer 37

Attaches hypothalamus to pituitary

Question 38

Mamillary body

Answer 38

Limbic system (behavior)

Question 39

Tentorium cerebellum

Answer 39

Divides the cerebellum from the cerebrum

in cats it’s completely ossified

Swelling of the brain can cause herniation around tentorium and press on brain stem

Question 40

Epithalamus

Answer 40

Parts are: