General Organization Of The Nervous System

Question 1

What does the nervous system consist of?

Answer 1

Peripheral NS and Central NS

Question 2

The Peripheral Nervous System consist of:

Answer 2

Cranial nerves and spinal nerves

Question 3

The Central NS consist of :

Answer 3

Brain and spinal cord

Question 4

Which is the largest portion of the brain?

Answer 4

Cerebrum

Question 5

What does the cerebrum consist of?

Answer 5

2 Cerebral hemispheres (right and left hemispheres)

Question 6

What is the right hemisphere responsible for?

Answer 6

Art, music, imagination, involved in left side sense and motor.

Question 7

What is the left hemispheres responsible for?

Answer 7

Language, logic, math, involved in right side sense and motor.

Question 8

What is corpus callosum ?

Answer 8

Thick white band of axons connecting right and left hemispheres.

Question 9

In cerebrum there is white matter covered with layer of neural cortex(grey). True or false?

Answer 9

True

Question 10

Name the 5 cerebral lobes each Cerebral hemisphere consist of.

Answer 10

1. Frontal
2. Parietal
3. Temporal
4. Occipital
5. Insula

Question 11

Frontal lobe responsible for:

Answer 11

Judgement, personality, motivation, voluntary motor, Broca’s area on left side.

Question 12

Parietal lobe is for:

Answer 12

Sensory areas

Question 13

Temporal lobe is for:

Answer 13

Auditory areas, learning, memory, speech understanding.

Question 14

Occipital lobe is for:

Answer 14

Visual areas

Question 15

Which lobe is not visible and lies deep to lateral fissure?

Answer 15

Insula

Question 16

The Cerebral hemispheres have functional regions which are?

Answer 16

Motor, sensory and association areas

Question 17

Functions of the cerebrum. Hint:

Answer 17

Controls your thinking, speech,movement and identifies the information gathered by your sense organs.

Question 18

Do Cerebral hemispheres have some functional differences. True/false

Answer 18

True

Question 19

Cerebral hemispheres have do not have anatomical resemblance- lateralization of cortical functioning. True/ False

Answer 19

False, they do have anatomical resemblance

Question 20

The brain consists of four ventricles name them and what are they filled with?

Answer 20

1. 3rd ventricle
2. 4th ventricle
3. Two lateral ventricle - central and inferior

They are filled with CSF

Question 21

Cerebral cortex is the outer portion of cerebrum and is composed of:

Answer 21

Grey matter(bundles of neuron cell bodies) and bulk of cerebrum is white matter (bundles of myelinated nerve fibers/axons)

Question 22

The thalamus is the major______and important in_______control. It serves as a_______center for preliminary processing of all______input on it’s way to the _____.

Answer 22

Sensory Relay station, motor ,synaptic integrating, sensory ,cortex

Question 23

Give the functions of the hypothalamus. Hint: 5C’s, 2P’s, S

Answer 23

1. Controls body temperature
2. Controls thirst and urine output
3. Controls food intake
4. Controls anterior pituitary hormone secretion
5. Controls uterine contractions and milk ejection
6. Produces posterior pituitary hormones
7. Plays a role in emotional and behavioral patterns
8. Serves as a major autonomic nervous system coordinating center, which in turn affects all smooth muscle, cardiac muscle, and exocrine glands.

Question 24

The brain stem connects the brain to the______.

Answer 24

Spinal cord

Question 25

The nerves in the brain stem control your ______,_______, and _______.

Answer 25

Heart rate, breathing and blood pressure

Question 26

The tectum is the corpora quadrigemina with two pairs sensory nuclei, which are?

Answer 26

1. Superior colliculi | 2. Inferior colliculi

Question 27

What is the function of superior colliculi?

Answer 27

Is a relay station for visual information

Question 28

What is the function for inferior colliculi?

Answer 28

Is a relay station for auditory information

Question 29

Describe what is tegmentum?

Answer 29

Is a red nucleus(many blood vessels) and is substantia nigra( pigmented gray matter) it regulates motor output.

Question 30

What are Cerebral peduncles?

Answer 30

Are ascending and descending tracts to thalamus.

Question 31

Midbrain is the nuclei of origin for which cranial nerves?

Answer 31

CN III and CN IV

Question 32

The pons assist the cerebellum, it acts as its PA,by doing what?

Answer 32

By controlling movement and posture.

Question 33

What does the cerebellum do?

Answer 33

● Your balance and posture ● Helps initiate and control rapid limb movement (kicking and punching) ● Plays a role in eye movement

Question 34

Name five features that describe the medulla oblongata.

Answer 34

1. Has mostly ascending and descending tracts. 2. It is the nuclei for many cranial nerves. 3. It is the location of autonomic nuclei involved respiratory and cardiovascular control. 4. It is the relay station for sensory neurons and motor neurons.

Question 35

How many cranial nerves are there and how are they divided?

Answer 35

There is 12 pairs of cranial nerves 2 attached to forebrain ( telen- and diencephalon) 10 attached to brainstem (mes-, met- and myelencephalon)

Question 36

Which two structural parts is the Peripheral nervous system is composed of ?

Answer 36

Cranial nerves and spinal nerves

Question 37

What are the two functional parts of PNS?

Answer 37

Autonomic system and somatic system