The Brain Part 1

Question 1

what does the brainstem consist of?

Answer 1

medulla oblongata, pons, and midbrain

Question 2

what are the meninges?

Answer 2

dura mater(dense), arachnoid(loose network), pia mater

Question 3

what are the three functions of the cerebrospinal fluid?

Answer 3

provide cushioning to the brain, support to the brain, and chemical balance

Question 4

what makes cerebrospinal fluid?

Answer 4

choroid plexus

Question 5

around how much of cerebrospinal fluid is in circulation?

Answer 5

~140ml

Question 6

where does the CSF circulate?

Answer 6

through ventricles, spinal epidural space, and central canal.

Question 7

where is CSF located?

Answer 7

subrachnoid space

Question 8

what (two) sources provide the blood supply to the brain?

Answer 8

internal carotids, and vertebral/basilar arteries

Question 9

what allows the bllod flow from the brain to the rest of the body?

Answer 9

internal jugular

Question 10

What is responsible for the infomation bypass/ relay connect brain and spinal cord?

Answer 10

medulla oblongata white matter

Question 11

What is responsible for ANS reflex control( brathing, blood pressure, and heart rate)?

Answer 11

medulla oblongata gray matter

Question 12

what part of the brain is responsible for cranial nerve attatchment?

Answer 12

medulla oblongata gray matter

Question 13

what part is responsible for the relay of somatic sensory to the thalamus?

Answer 13

medulla oblongata gray matter

Question 14

what part is responsible for the relay of visceral sensory infor?

Answer 14

medulla oblongata gray matter

Question 15

what responsible for the involuntary control of vommiting, sneezing, coughing, and swallowing?

Answer 15

medulla oblongata gray matter

Question 16

what links the cerebellum to the rest of the brain?

Answer 16

pons

Question 17

what is responsible for getting the sensory info to the thalamus, and motor info the to cranial and spinal nerves?

Answer 17

pons white matter

Question 18

what is responsible for the cranial nerve sensory relay/ motor commands, respiration rate adjustment, and reslay sensory and motor info to cerebellum?

Answer 18

pons gray matter

Question 19

what connects motor neurons between brain and spinal cord?

Answer 19

mid brain white matter

Question 20

what in the mid brain transmits sensory info to the thalamus?

Answer 20

white matter(peduncles)

Question 21

what is responsible for the reflex response to auditory and visual stimuli?

Answer 21

mid brain gray matter

Question 22

what part of brai contains reticular formation?

Answer 22

mid brain gray matter

Question 23

MO: Nucleus gracilis and nucleus cuneatus:

Answer 23

somatic sensory relay to thalamus

Question 24

MO: solitary nucleus

Answer 24

integrates and relays visceral sensory information

Question 25

MO: cardiac centers

Answer 25

control heart rate and force contraction

Question 26

MO: vasomotor centers:

Answer 26

regulates distribution of blood flow

Question 27

MO: Respriatory centers

Answer 27

control breathing

Question 28

what are the function of the reticular formation?

Answer 28

motor coordination, CV control, pain modulation, sleep/consciousness, habituation

Question 29

MB: superior colliculi:

Answer 29

visual refleces

Question 30

MB: inferior colliculi:

Answer 30

auditory reflexes

Question 31

MB: red nucleus:

Answer 31

fine motor control of upper limb

Question 32

MB: substania nigra

Answer 32

regulates activity of the basal nuclei

Question 33

MB: Reticular activating system (RAS):

Answer 33

consiousness

Question 34

what is responsible for the coordination between brain regions and spinal cord?

Answer 34

cerebellum white matter

Question 35

what is responsible for balance and posture, as well as involuntary, fine tuning of on going motor movements like walking?

Answer 35

cerebellum gray matter