Chapter 14

Question 0

83% of the brain’s volume and consists of two half globes called cerebral hemispheres

Answer 0

Cerebrum

Question 1

What are the three major landmarks of the brain?

Answer 1

Cerebrum
Cerebellum
Brainstem

Question 2

Name four parts of the cerebrum

Answer 2

Gyri
Sulci
Longitudinal fissure
Corpus callosum

Question 3

What are the thick folds of the cerebrum called?

Answer 3

Gyri

Question 4

What are the shallow grooves of the cerebrum called?

Answer 4

Sulci

Question 5

What is the deep groove that separates the right and left hemispheres of the cerebrum called?

Answer 5

Longitudinal fissure

Question 6

What is the thick bundle of nerves fibers that connect the two hemispheres of the cerebrum called?

Answer 6

Corpus callosum

Question 7

This occupies posterior cranial fossa inferior to the cerebrum

Answer 7

Cerebellum

Question 8

The deep grooves that separates the cerebrum from the cerebellum, it’s called?

Answer 8

Transverse cerebral Fissure

Question 9

What is left of the brain?

Answer 9

The brainstem

Question 10

Surface layer over the cerebrum and cerebellum is called?

Answer 10

Cortex

Question 11

The deeper masses of gray matter surrounded by white matter called?

Answer 11

Nuclei

Question 12

Bundles of axons which connect the parts of the brain and connect to the spinal cord or called?

Answer 12

Tracts

Question 13

During what week of embryonic development does the neural plate which gives rise to neurons and glial cells sink and form A neural groove with raised neural folds?

Answer 13

The third week

Question 14

By what week of embryonic development does the neural folds fuse creating a hollow neural Tube which exhibits three dialations?

Answer 14

The fourth week

Question 15

The three dialations will subdivide by what week of embryonic development?

Answer 15

The fifth week

Question 16

What protects the brain and provides a framework for its arteries and veins?

Answer 16

The meninges

Question 17

The spaces between the Dura matter layers that collect blood are called?

Answer 17

Dural sinuses

Question 18

Dura fold that extends into the longitudinal fissure is called?

Answer 18

Falx cerebri

Question 19

Dura fold that separates the cerebellum and cerebrum is called?

Answer 19

Tentorium cerebella

Question 20

Duro fold that separates the right and left halves of the cerebellum?

Answer 20

Falx cerebella

Question 21

What are the internal chambers in the brain called?

Answer 21

Ventricles

Question 22

What is the clear colorless liquid that fills the ventricles etc. and bathes the external surface of the brain called?

Answer 22

Cerebrospinal fluid

Question 23

Cerebrospinal fluid is produced from__________ ____________ filtered through the choroid plexus, then modified by
_________ __________.

Answer 23

Blood plasma

Ependymal cells

Question 24

CSF flows from choroid plexus in the lateral ventricle > through _____________ ____________ >____ ventricle > _____________ _____________ to fourth ventricle > through apertures >_______________ ______________ > arachnoid granulations > dural _________ _________

Answer 24

``` Intraventricular foramina Third Cerebral aqueduct Subarachnoid space Venous sinuses ```

Question 25

What are the purposes of the cerebrospinal fluid?

Answer 25

Buoyancy, protection and chemical stability

Question 26

Blood supply must be constant because _________ have a high demand for _____, thus a high demand for glucose and ______.

Answer 26

Neurons ATP O2

Question 27

Blood is a source of _____________ ____________ and other harmful agents.

Answer 27

Bacterial toxins

Question 28

What does the brain barrier system regulate?

Answer 28

What can enter the tissue fluid of the brain

Question 29

All nerve fibers connecting the brain to the spinal cord pass through the what?

Answer 29

Medulla

Question 30

The medulla contains networks of ___________ and __________ functions and contains center for life-sustaining functions like what?

Answer 30

Sensory and motor | Heart rate, respirations, blood pressure

Question 31

What contains the continuation of reticular formation and several tracts?

Answer 31

The pons

Question 32

The reticular formation portion of the pons contains nuclei involved in what?

Answer 32

Sleep, respiration and posture

Question 33

Function in visual attention, visual tracking and blinking

Answer 33

Superior colliculi

Question 34

Receive signals from the inner ear and relay them, mediate head turning reflex to sound and the jump when startled

Answer 34

Inferior colliculi

Question 35

Stalks that anchor the cerebrum to the brainstem are called?

Answer 35

Cerebral peduncles

Question 36

Fibers that go to and from the cerebellum to collaborate in fine motor control are called?

Answer 36

Red nucleus

Question 37

The motor center that relays inhibitory signals to the thalamus to prevent unwanted body movement are called?

Answer 37

Substantia nigra

Question 38

Involved with controlling the awareness of pain.

Answer 38

Central Grey matter

Question 39

Gray matter that runs through the brainstem is called?

Answer 39

The reticular formation

Question 40

The reticular formation consists of neural networks which function in four things name them.

Answer 40

Somatic Motor control which includes muscle tone, balance, posture,integration of signals from the eyes and ears.