Nervous system

Question 1

What is the all-nervous system structure? (3)

Answer 1

1. The brain 2. The spinal cord 3. Neurons

Question 2

What are the two main parts of the nervous system? (2)

Answer 2

1. central nervous system (CNS) 2. The peripheral nervous system (PNS)

Question 3

What are CNS was made for?

Answer 3

made for the brain and spinal cord

Question 4

What are PNS was made for?

Answer 4

made for nerve cells that branch off from the spinal cord and extend to the body

Question 5

The brain is the ___ of the body.

Answer 5

The brain is the control center of the body.

Question 6

How many kg is the brain?

Answer 6

1.4 kg in weight fully developed.

Question 7

what is the brain made of?

Answer 7

The brain is made of soft tissue with billions of neurons inside the skull.

Question 8

How many layers is the brain and what are those?

Answer 8

(2) outer layers are grey matter
inner layers are white matter.

Question 9

Grey matter for the brain contains ____.

Answer 9

Grey matter contains neurons.

Question 10

White matter for the brain contains ____ of ___ (____)

Answer 10

White matter contains the extension of neurons (axons)

Question 11

The brain can be divided into how many parts and what are they

Answer 11

(3) 1. Cerebrum 2. The medulla oblongata 3. cerebellum

Question 12

____ is the largest part of the forebrain.

Answer 12

The cerebrum is the largest part of the forebrain.

Question 13

______ is the lower part of the brainstem and connects with ____

Answer 13

The medulla oblongata is the lower part of the brainstem and connects with the spinal cord.

Question 14

______ is located at the back end of the cerebrum

Answer 14

cerebellum is located at the back end of the cerebrum

Question 15

What does the cerebrum control?

Answer 15

voluntary action (e.g. ability to feel and move, emotion, thinking, and intelligence)

Question 16

What does the medulla oblongata control?

Answer 16

body’s automatic function (e.g. breathing, heart rate, cough, sneeze, hiccup )

Question 17

What does The cerebellum control?

Answer 17

control balance, movement, muscular activity, and coordination

Question 18

______ is a long bundle of nervous tissue

Answer 18

The spinal cord is a long bundle of nervous tissue

Question 19

The spinal cord is located at the ___ part of the brain down through the s___

Answer 19

The spinal cord is located at the lower part of the brain down through the spine.

Question 20

The spinal cord was expanding from the ____; a hole at the base of the skull, through the spinal canal to the first or second lumber vertebrae.

Answer 20

The spinal cord was expanding from the foreman magnum.

Question 21

the brain and spinal cord together form CNS surrounded by ___ layers of connective membranes called ______.

Answer 21

the brain and spinal cord together form the CNS surrounded by 3 layers of connective membranes called meninges.

Question 22

What are the spinal cord’s inner and outer layers?

Answer 22

inner layer; grey matter and
outer layer ; whiten matter

Question 23

What is spinal cord grey matter made up of?

Answer 23

it made up of nerve cell bodies

Question 24

What is the spinal cord white matter made up of?

Answer 24

it is made up of sensory and motor neurons.

Question 25

The spinal cord transmits _____ from ____ (______) to the brain.

Answer 25

The spinal cord transmits nerve impulses from receptors (sense organs) to the brain.

Question 26

(2) The spinal cord transmits nerve impulses from the brain to the ____ (___or____) that produce responses to _____

Answer 26

(2) The spinal cord transmits nerve impulses from the brain to the effectors (muscles or organs) that produce responses to stimuli

Question 27

Neurons can also called ___

Answer 27

nerve cells

Question 28

the neurons branch off from the ___ and connect the ____ and ____ to the rest part of the body.

Answer 28

the neurons branch off from the spinal cord and connect the spinal cord and the brain to the rest part of the body.

Question 29

What are the smallest specialized cells in the system?

Answer 29

neurons

Question 30

A neurons has a cell ____ , cell ____ , special ____ (___) and ______ .

Answer 30

A neuron has a cell body, cell nucleus, special extension (axons), and dendrites.

Question 31

Axon What does it look like? what does it carry?

Answer 31

Axon, -a long threadlike part -carries nerve impulses from the cell body to other cells.

Question 32

dendrite What does it look like? what does it carry and to where

Answer 32

dendrite a short branch that carries nerve impulses from other cells to the cell body

Question 33

each neuron has only one primary ____ with one or more ____.

Answer 33

each neuron has only one primary axon with one or more dendrites.

Question 34

how many types of neurons and what are those?

Answer 34

1. sensory neurons 2. interneurons 3. motor neurons

Question 35

1. sensory neurons carry ______ from _______ or _______ e.g. eyes tongue, ears, and skin to _____ in the form of _____________

Answer 35

1. sensory neurons carry sensory information from receptors or sense organs e.g. eyes tongue, ears, and skin to interneurons in the form of nerve impulses

Question 36

2. interneurons found in the _______ and _________ ____ transmit ______ from sensory neurons to _______

Answer 36

2. interneurons found in the brain and spinal cord transmit nerve impulses from sensory neurons to motor neurons

Question 37

3. motor neurons transmit nerve impulses from the brain and spinal cord to _____, e.g. muscles and glands, which produce a response to a ________

Answer 37

3. motor neurons transmit nerve impulses from the brain and spinal cord to effectors, e.g. muscles and glands, which produce a response to a stimuli