chapter 17: brain and cranial nerves

Question 0

diencephalon

Answer 0

autonomic function

Question 1

cerebrum

Answer 1

thought and intelligence

Question 2

thalamus

Answer 2

relay and processing centers for sensory info

Question 3

hypothalamus

Answer 3

centers controlling emotions, autonomic functions, and hormone production

Question 4

mesencephalon

Answer 4

visual and auditory

Question 5

pons

Answer 5

respiratory

Question 6

medulla oblongata

Answer 6

cardiac

Question 7

cerebellum

Answer 7

muscle coordination

Question 8

what initiates muscle contraction?

Answer 8

cerebrum

Question 9

what helps coordinate muscle contraction?

Answer 9

cerebellum

Question 10

dura mater

Answer 10

outermost layer, consists of 2 fibrous layers - endosteal layer (outermost) and the meningeal layer
epidural space - adipose
subdural space - separates opposing epithelia of the dura mater and the cranial arachnoid mater

Question 11

arachnoid mater

Answer 11

delicate membrane covering the brain and lying between the superficial dura mater and the deeper pia mater
subarachnoid space - contains a delicate weblike meshwork of collagen and elastic fibers that link the arachnoid mater to the underlying pia mater, contains CSF

Question 12

pia mater of brain

Answer 12

tightly attached to the surface contours of the brian

highly vascular membrane that acts as a floor to support the large cerebral blood vessels

Question 13

flow of CSF

Answer 13

lateral ventricles
interventricular foramina
third ventricle
cerebral aqueduct
fourth ventricle
1. subarachnoid space of brain
2. subarachnoid space of spinal cord
3. central canal of spinal cord
arachnoid villi of dural sinuses
venous blood
heart
blood supply

Question 14

where does CSF go after it circulates?

Answer 14

venous blood

Question 15

frontal lobe - function

Answer 15

conscious control of skeletal muscles

Question 16

temporal lobe - functions

Answer 16

conscious perception of auditory and olfactory

Question 17

occipital lobe - functions

Answer 17

conscious perception of visual stimuli

Question 18

parietal lobe - function

Answer 18

conscious perception of touch, pressure, vibration, pain, temperature, and taste

Question 19

limbic system

Answer 19

emotions

Question 20

epithalamus

Answer 20

roof of the 3rd ventricle
its membranous anterior portion contains an extensive area of choroid plexus that extends through the interventricular foramina into the lateral ventricles

Question 21

pineal gland

Answer 21

endocrine structure that secretes the hormone melatonin

Question 22

thalamus

Answer 22

sensor
master gland
triggers other glands to regulate
homeostasis mechanism

Question 23

hypothalamus

Answer 23

acts as a switching station

forces impulse where it is interpreted

Question 24

substantia nigra - mesencephalon

Answer 24

plays an important role in regulating the motor output of the basal nuclei

Question 25

corpora quadrigemina - mesencephalon

Answer 25

relay stations concerned with the processing of visual and auditory sensations

Question 26

cerebral peduncles - mesencephalon

Answer 26

contain

1. ascending fibers that synapse in the thalamic nuclei
2. descending fibers of the corticospinal pathway that carry voluntary motor commands from the primary motor cortex of each cerebral hemisphere

Question 27

parkisons disease

Answer 27

individuals show spasticity during voluntary movement and a continual tremor when at rest

Question 28

pons - respiratory centers

Answer 28

modify output of respiratory centers in the medulla oblongata

Question 29

medulla oblongata - respiratory center

Answer 29

set the pace of respiratory movements

Question 30

medulla oblongata - cardiovascular center

Answer 30

regulate heart rate and force of contraction

cardiac nerves begin

Question 31

medulla oblongata - vasomotor center

Answer 31

regulate distribution of blood flow
neurons coming out of vaso nerve go to smooth blood vessels
controls blood pressure (controls diameter)

Question 32

blood supply to brain

Answer 32

1. common carotid artery
2. internal carotid artery
3. vertebral artery
4. basilar artery
5. circle of willis

Question 33

blood drainage of brain

Answer 33

1. venous sinuses
2. internal jugular veins
3. brachiocephalic veins
4. superior vena cava
5. right atrium