brain

Question 1

function of cerebrum

Answer 1

primary motor and somatosensory cortex

Question 2

function of cerebellum

Answer 2

subconscious coordination and control of ongoing movements of body part

Question 3

function of thalamus

Answer 3

filters info passing only a small portion of arriving sensory info.

Question 4

function of hypothalamus

Answer 4

maintain homeostasis of body

Question 5

function of pituitary gland

Answer 5

master of endocrine system, releases hormones

Question 6

brain stem ( two)

Answer 6

pons: voluntary control of respiratory
medulla: transmits info btwn spinal cord and brain for autonomic activities like breathing or heart rate

Question 7

whats the function of the bones of the skull (protect, noruish and support)

Answer 7

protects from impact that can happen

Question 8

whats the function of the cranial meninges (protect, noruish and support)

Answer 8

protect the brain, physical stability and shock absorption for the cns

Question 9

whats the function of blood brain barrier (protect, noruish and support)

Answer 9

filter, protect delicate brain tissues

Question 10

rich blood supple (protect, nourish and support)

Answer 10

gives energy for brain

Question 11

difference btwn cranial and spinal meninges

Answer 11

-brain has 2 dural layers (periosteal and meningeal) and spinal only has one (meningeal)
-epidural space in brain doesn’t have nerves or tissues, spinal does

Question 12

meningeal layers (DAP)

Answer 12

outer most: dura mater (periosteal and meningeal); tough (collagen fibres), fuses with the adventitia of blood vessels
middle: arachnoid mater- delicate, avascular (no blood vessels)
Inner layer: pia mater: anchored to brain tissue by astrocytes

Question 13

epidural space

Answer 13

potential space in brain ( not visible)
real in spinal cord (visible)

Question 14

subdural space

Answer 14

potential space in both brain and spinal cord

Question 15

dural sinus

Answer 15

• channels that drain venous blood, where cerebrospinal fluid returns to venous circulation

Question 16

subarachnoid space

Answer 16

real space that hold CSF

Question 17

cerebrospinal fluid

Answer 17

cushions neural structures, supports brain and transports nutrients
-only has a little bit of protein and circulates circumventricular organs and in subarachnoid space

Question 18

csf formed by what

Answer 18

choroid plexus (epndymal cells and specialized blood capillaries)

Question 19

arterial blood (oxygenated)

Answer 19

blood goes to brain through common carotid arteries

Question 20

venous blood (deoxygenated)

Answer 20

supplied by internal and external jugular vein, also dural sinuses

Question 21

blood brain barrier

Answer 21

prevents proteins, toxins and viruses circulating in blood to enter brain tissues
structure: endothelial- tight junctions and lack of vesicular transport
astrocytes surround and help support tight junctions

Question 22

where is BBB different compared to brain

Answer 22

pineal gland, portions of hypothalamus. posterior lobe of pituitary gland and choroid plexus