Sheep Brain/Cranial Nerves Flashcards Preview

A/P II Lab > Sheep Brain/Cranial Nerves > Flashcards

Flashcards in Sheep Brain/Cranial Nerves Deck (49)
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1

Spinal cord
central canal

-CSF circulates

2

Meninges
dura mater

-outer layer
-thick and durable

3

Meninges
pia mater

-inner layer
-adheres to the surface of spinal cord

4

Brain stem
Medulla oblongata

-respiration
-blood pressure

5

Brain stem
pons

-sensory relay center
-respiration

6

Midbrain
cerebral peduncles

-descending motor tracts from cerebrum to brainstem

7

Midbrain
corpora quadrigema

-superior and inferior colliculi

8

Midbrain
Corpora quadrigema
superior colliculi

-visual reflexes

9

Midbrain
Corpora quadrigema
inferior colliculi

-auditory reflexes

10

Cerebellum
arbor vitae

-nerve tracts within the cerebellum

11

Diencephalon
thalamus

-relays sensory information to cerebral cortex

12

Diencephalon
pineal gland

-biorhythm control

13

Diencephalon
hypothalamus

-central control for endocrine system

14

Diencephalon
mammillary body

-olfactory reflexes

15

Diencephalon
pituitary gland

-secretes endocrine hormones

16

Cerebrum
longitudinal cerebral fissure

-separates the left and right hemispheres of the brain

17

Cerebrum
transverse fissure

-separates the cerebellum from the occipital lobe

18

Cerebrum
cingulate gyrus

-emotion, behavior, and motivation
-located right above corpus callosum

19

Cerebrum
corpus callosum

-nerve tracts that connect the left and right hemispheres of the brain

20

Cerebrum
septum pellucidum

-separates the lateral ventricles

21

Cerebrum
lateral ventricle

-secretes and circulates CSF
-drains into 3rd ventricle

22

Cerebrum
cerebral aqueduct

-connects third ventricle to fourth ventricle

23

Cerebrum
fourth ventricle

-secretes and circulates CSF
-connects to central canal

24

Cerebrum
choroid plexus (third and fourth ventricles)

-ependymal tissue that produces CSF in each ventricle

25

Cranial Nerve I
Olfactory

sensory: olfaction

26

Cranial Nerve II
Optic

sensory: vision

27

Cranial Nerve III
Oculomotor

-motor: superior, medial, and inferior rectus muscles of the eye
-motor: upper eyelid

28

Cranial Nerve III
Oculomotor

-parasympathetic: pupillary sphincter and ciliary muscles of lens

29

Cranial Nerve IV
Trochlear

-motor: superior oblique muscle of the eye

30

Cranial Nerve V
Trigeminal

-sensory: cutaneous sensory from scalp and face
-sensory: palate, nasal cavity, upper and lower jaws and teeth