Chapter 9 Part 2

Question 0

What does the brain stem connect

Answer 0

Cerebrum to the spinal cord

Question 1

What is a nerve tissue that connects the cerebrum to the spinal cord?

Answer 1

Brain stem

Question 2

What are the 4 parts to the brain stem?

Answer 2

Diencephalon, mid-brain, pons, medulla oblongata

Question 3

What is the diencephalon located between?

Answer 3

Cerebral hemispheres and above the midbrain

Question 4

What are the parts of the diencephalon?

Answer 4

Thalamus, hypothalamous, limbic system, pineal gland

Question 5

what is the thalamus

Answer 5

Central relay station for sensory impulses to cerebral cortex

Question 6

The cortex communicates with the thalamus through what?

Answer 6

Descending fibers

Question 7

What can’t the thalamus do?

Answer 7

Pinpoint sensory stimulation

Question 8

What does the hypothalamus do?

Answer 8

Maintain homeostasis

Question 9

Name the activities the hypothalamus regulates

Answer 9

Heart rate and blood pressure, body temperature, water and electrolyte balance, body weight and controls hunger, control of movements and glandular secretions of stomach, production of neuroses retort substances that stimulate the pituitary gland, sleep and wakefullness

Question 10

What is the limbic system involved in

Answer 10

Emotional experience and expression

Question 11

The limbic system can?

Answer 11

Modify the way a person acts and guide behavior to increase survival

Question 12

What shape is the pineal gland?

Answer 12

Cone shaped

Question 13

What is the pineal gland and what is it attached to

Answer 13

Endocrine gland attached to the thalamus

Question 14

Where is the mid brain located

Answer 14

Between the diencephalon and pons

Question 15

What does the mid brain serve as?

Answer 15

Reflex center for vision and hearing

Question 16

What does the mid brain contain?

Answer 16

Nerve fibers

Question 17

Where are the pons located?

Answer 17

On the underside of brain stem

Question 18

What does the dorsal portion of the pons consist of?

Answer 18

Longitudinal nerve fibers that relay impulses to and from medulla oblongata and cerebrum

Question 19

What does the ventral portion pon consist of?

Answer 19

Transverse nerve fibers that transmit nerve fibers that transmit impulses from cerebrum to centers within cerebellum

Question 20

what is the medulla oblongata?

Answer 20

Enlarged continuation of spinal cord extending from the pons to do ramen magnum

Question 21

In the medulla oblongata, what passes through it because of its location

Answer 21

All ascending and descending fibers

Question 22

Nuclei in the medulla oblongata function as control centers for what activities?

Answer 22

Cardiac center: controls heart rate
Vasometer center: controls blood pressure
Respiratory center: regulate rate, rhythm, and depth of breathing
Other nuclei: function as centers for reflexes associated with coughing sneezing swallowing and vomiting

Question 23

The reticular formation is what?

Answer 23

A network of nerve fibers scattered throughout the medulla oblongata pons and mid brain

Question 24

The reticular formation signals what?

Answer 24

The cerebral cortex with sensory impulses activating it into a state of wakefullness

Question 25

What is the cerebellum

Answer 25

A large mass of tissue located below occipital loves of the cerebrum and behind the medulla oblongata and pons

Question 26

Where is the cerebellum located?

Answer 26

Below the occipital lobe of the cerebr and behind the medulla oblongata and pons

Question 27

How many hemispheres to the cerebellum are there?

Answer 27

2

Question 28

What are the 2 hemispheres of the cerebellum connected by?

Answer 28

Vermis

Question 29

What are the 2 hemispheres of the cerebellum separated by?

Answer 29

Dura mater

Question 30

What is the cerebellum covered by?

Answer 30

A thin layer of gray matter of cerebellar cortex

Question 31

The cerebellum consists of how many nerve tracts?

Answer 31

3

Question 32

The 3 pairs of nerve fibers in the cerebellum are what?

Answer 32

Inferior peduncles, middle peduncles, superior peduncles

Question 33

The inferior peduncles job is what?

Answer 33

To bring sensory info concerning the position of the limbs joints and other body parts to the cerebellum

Question 34

The middle peduncles do what?

Answer 34

Transmit signals from the cerebral cortex to cerebellum

Question 35

The superior peduncles do what?

Answer 35

Send impulses from cerebellum to the midbrain

Question 36

The cerebellum functions as what

Answer 36

Reflex center

Question 37

The cerebellum helps maintain what

Answer 37

Posture

Question 38

The cerebellum is divided into how many main parts

Answer 38

3

Question 39

The cerebellum is divided into 3 main parts. What are they?

Answer 39

Cerebrocerebellum, vestibullocerebellum, spinocerebellum

Question 40

The cerebrocerebellum does what

Answer 40

Receives signals from cerebrum

Question 41

The vestibulorcerebellum does what

Answer 41

Receives input from the brain stem

Question 42

The spinocerebellum does what

Answer 42

Receives electrical signals from the spinal cord

Question 43

The surface of the cerebellum is shaped by thin folds called what

Answer 43

Folia

Question 44

The cerebellum coordinates what

Answer 44

Motor activity, posture and balance, and helps us store I do about motor skills

Question 45

Damage to cerebellum may cause what?

Answer 45

Tremors in accurate movements of voluntary muscles, loss of muscle tone, a distorted walk, loss of equilibrium