Unit 7E

Question 1

What are the 2 things that the nervous system is divided into?

Answer 1

Peripheral nervous system and central nervous system

Question 2

What is the PNS made of

Answer 2

Made of communication pathways that connect all areas of the body to the cns

Question 3

Nerves

Answer 3

Communication pathways in the body.

Also are axons bundles together with BV and connective tissue

Question 4

Neurons

Answer 4

Specialized cells that transfer messages in the form of fast- moving electrical signals

Question 5

Impulses

Answer 5

Electrical signals

Question 6

What does the neuron structure consist of?

Answer 6

Cell body, dendrites, and axons

Question 7

Cell body

Answer 7

The region in the center that contains a nucleus and cell organelles

Question 8

Dendrites

Answer 8

Where a neuron receives info from other cells through short, branches extensions

Question 9

Axon

Answer 9

Fiber where info is transmitted to other cells

Question 10

What are the 2 types of nerve cells

Answer 10

Sensory neurons, and motor neurons

Question 11

Sensory neurons

Answer 11

Gathers info about what is happening around your body

Question 12

Receptors

Answer 12

Specialized structures that detect changes inside and outside the body

Question 13

Motor neurons

Answer 13

Send impulses from the brain and spinal cord to other systems

Question 14

Where do motor neurons send messages to ?

Answer 14

Sweat glands and muscles

Question 15

CNS connects to the …….

Answer 15

Rest of the body via nerves

Question 16

What does the central nervous recieve?

Answer 16

Information from sensory neurons and responds by sending messages throughout the body through motor neurons in the PNS

Question 17

Parts of CNS include

Answer 17

Brain, spinal cord

Question 18

Three main parts of brain

Answer 18

Cerebrum,
Cerebellum,
Medulla

Question 19

The brain is the ________ organ in the CNS

Answer 19

Largest

Question 20

Many processes controlled by the brain are

Answer 20

Involuntary

Question 21

Left hemisphere

Answer 21

Directs the right side of body: verbal, analytical, logical

Question 22

Right hemisphere

Answer 22

Directs left side of body: nonverbal, artistic, creative

Question 23

The thinking cap of the brain is the

Answer 23

Cerebrum

Question 24

Largest part of brain

Answer 24

Cerebrum

Question 25

What is located in the cerebrum

Answer 25

Thinking, memories, and voluntary motions

Question 26

What part of your brain controls balance

Answer 26

Cerebellum

Question 27

What is the second largest part of your brain?

Answer 27

Cerebellum

Question 28

What part of your brain controls involuntary actions

Answer 28

Medulla

Question 29

What does the medulla connect

Answer 29

Medulla connects to the spinal cord

Question 30

What is the spinal cord surrounded by

Answer 30

Protective bones called vertabrae

Question 31

What type of neurons travel through the spinal cord

Answer 31

Sensory neurons

Question 32

2 basic functions of the nervous system

Answer 32

Gathers and interprets information from the environment surrounding the body and ten responds to that environment

Question 33

What type of neuron is needed to move your leg

Answer 33

Motor because it gets message from cerebrum

Question 34

What are the 3 things that the integumentary system does?

Answer 34

1. Guards body from damage and includes your hair, skin, and nails 2. Gets info about the environment in and around your body 3. This info gets processed by the CNS

Question 35

Reflex

Answer 35

Quick involuntary action

Question 36

What do heat receptors in the skin detect

Answer 36

They detect heat and send impulses to your brain causing u to feel heat. In response, u sweat

Question 37

Why does the brain send messages to BV?

Answer 37

To enlarge so more blood can travel through your skin

Question 38

Sweating and cooling are interactions of......

Answer 38

The integumentary system, nervous system, and the cardiovascular system

Question 39

Main function of endocrine system

Answer 39

Controls body processes using endocrine glands. Examples of body processes are fluid balance, growth, and sexual devolpment

Question 40

Gland

Answer 40

Group of cells that makes special chemicals for your body

Question 41

Chemical messengers are controlled by......

Answer 41

endocrine system

Question 42

Hormones are made by.....

Answer 42

Endocrine gland

Question 43

Adrenal gland

Answer 43

Helps u deal with stress or anger. Make adrenaline( flight or flight response)

Question 44

Pituitary gland

Answer 44

Stimulates skeletal growth, controls water in blood, helps thyroid function, and stimulates birth in pregnet lady's

Question 45

The hypothalamus links the

Answer 45

Nervous and endocrine systems

Question 46

Thyroid gland

Answer 46

Raises the wait at which u use energy

Question 47

Parathyroid gland

Answer 47

Controls calcium levels in blood

Question 48

Thymus

Answer 48

Regulates the immune system which fights diseases

Question 49

Pancreas

Answer 49

Controls blood sugar levels

Question 50

Testes

Answer 50

Make hormones involved in reproduction in males

Question 51

Ovaries

Answer 51

Make hormone involved in reproduction in females

Question 52

Feedback mechanism

Answer 52

Sends message to endocrine glands to start or stop sending a certain hormone

Question 53

Hormone imbalances

Answer 53

When feedback mechanism isn't working

Question 54

Insulin hormone

Answer 54

Made by pancreas. If insulin is out of balance, diabetes happen

Question 55

Growth hormone

Answer 55

Made by pituitary gland; stunted or excess height is this condition if this hormone is out of balance

Question 56

Thyroxine hormone

Answer 56

Made by thyroid; fatigue and weight gain happen if this hormone is out of balance

Question 57

3 problems in endocrine system

Answer 57

Goiters, giantism, dwarfism