Ch16 Brain And Cranial Nerves

Question 1

What are the meninges

Answer 1

Provide protection, physical stability, and shock absorption

Dura matter – tough fibrous out most layer

Arachnoid matter - Middle layer contains a sub arachnoid space

Pia mater- Innermost layer surrounding vertebral body

Question 2

What is the region and function of the cerebellum

Answer 2

Located posterior
function: muscle memory and coordination
Contains the arborvitae

Question 3

Limbic system region and function

Answer 3

It borders the cerebral cortex and diencephalon

Function is emotional state and memory

Question 4

DienCephalon region and function

Answer 4

Contains the thalamus and hypothalamus also the penial gland that secretes melatonin.

Question 5

Thalamus location and function

Answer 5

Located in Diencephalon
Connection between spinal cord/brainstem and the cerebrum

Function sensory data besides olfactory

Question 6

Hypothalamus region and function

Answer 6

Inside diencephalon Right above the brainstem
In charge of maintaining homeostasis a stable internal environment, behavior and hormones release By controlling the pituitary gland (master gland)

Question 7

Mesencephalon (midbrain) function and location

Answer 7

Located on the brainstem above the pons

Function visual and auditory data
primitive processing for survival

Contains corpora quadrigemina
*Superior and inferior colliculi

Question 8

Pons location and function

Answer 8

Bump located on the brain stem Connects to cerebellum
Function Relay station to thalamus and cerebellum. Regulates motility in visceral organs and helps coordinate movement of skeleton

Question 9

Medulla oblongata Location and function

Answer 9

Located at the base of the brainstem connected to the spinal cord.

Function relay station of Info going to and coming from higher regions of the brain. Regulates blood pressure, digestion and cardiovascular control center.

Question 10

Cerebrum Location and function

Answer 10

Location entire top of brain Grows much faster and begins to fold into two hemispheres right and left.
Corpus callosum- allows two hemispheres to relay info back and fourth
makes humans different from other animals, allows us to reason, speak and think.
cerebral cortex- lining of gray matter
Gyri - peaks
sulci - valleys

contains
frontal lobe- decision maker and processor motor functions.
occipital lobe’s - sight
parietal lobe - sensation cold hot touch pain somata sensory
temporal lobe - sounds and hearing

Question 11

Brain Ventricle functions

Answer 11

The production and circulation of cerebrospinal fluid

Ventricles are lined with ependymal cells
most cells maintain CSF
some areas of ependymal cells are called

choroid plexus and they produce new CSF in every ventricle
Pink paint on model

Question 12

Lateral ventricles

Answer 12

C shaped one in each hemisphere connected to the third ventricle by the inter-ventricle foramen

Question 13

Third ventricle

Answer 13

Donut shaped marrow cavity that runs along the midline of the dienCephalon

Question 14

Cerebral aqueduct

Answer 14

Superior to the fourth ventricle

third and fourth ventricle communicate through the cerebral aqueduct

Question 15

Fourth ventricle

Answer 15

Located between Cerebellum and brainstem shaped like a tent CSF fluid leaves through the fourth ventricle into arachnoid space through 4th ventricle

Question 16

Which secondary brain vesicle forms the cerebrum

Answer 16

Telencephalon

Question 17

What’s the difference between Fissure sulcus and Gyrus

Answer 17

Fissure- large gap
Sulcus- small valley
Gyrus- mountain

Question 18

Pre-central Gyrus

Answer 18

Primary motor cortex motor output voluntary generated process before leaving brain

Question 19

Postcentral gyrus

Answer 19

Primary sensory cortex somatic senses pain temperature touch pressure Itch

Question 20

Function of mammillary body

Answer 20

Group of cell bodies helps with relay and connection

Question 21

Corpora quadrigemina

Answer 21

Superior and inferior colliculi Visual and auditory processing

Question 22

Insula

Answer 22

Found deep in cerebrum In charge of taste

Question 23

Ventricles of brain

Answer 23

Ventricles are aligned with ependymal cells most of cells maintain cerebrospinal fluid some areas of a ependymal cells are called choroid plexus and produce new CSF

Question 24

Hypothalamus

Answer 24

Hormones secretes hormones to pituitary gland master gland