Spa Life Science 7 Unit 4 Review

Front 1

Stimulus

Back 1

The changes in a surrounding that create an impulse. Some examples of these are Visual, Aural, and Proprieceptive

Front 2

Response

Back 2

The way your body interprets a stimulus

Front 3

Neuron

Back 3

Nerve Cell

Front 4

Nerve Impulse

Back 4

The way a stimulus travels to the brain.

Front 5

Dendrite

Back 5

The extensions off of the axon in a neuron

Front 6

Axon

Back 6

The head of a neuron

Front 7

Nerve

Back 7

Neuron

Front 8

Sensory Neuron

Back 8

The neuron that picks up a stimulus

Front 9

Inter-Neuron

Back 9

The neuron that interprets information

Front 10

Motor Neuron

Back 10

The neurons that receive the response

Front 11

Synapse

Back 11

A junction between two nerve cells

Front 12

Central Nervous System

Back 12

Consists of Brain and Spinal Cord

Front 13

Peripheral Nervous System

Back 13

Consists of nerves in the body

Front 14

Brain

Back 14

Control Center for Body

Front 15

Spinal Cord

Back 15

Link between Peripheral Nervous System and Brain

Front 16

Cerebrum

Back 16

Largest part of the brain. Controls Movement, the senses, speech, and abstract thought

Front 17

Cerebellum

Back 17

Controls Muscles and helps maintain balance.

Front 18

Brain Stem

Back 18

Controls invoulentary actions such as breathing and heart rate

Front 19

Somatic Nervous System

Back 19

Controls voulentary actions

Front 20

Autonomic Nervous System

Back 20

Controls Invoulentary Actions

Front 21

Reflex

Back 21

Your body's automatic response to certain stimuli

Front 22

Concussion

Back 22

A bruise on your brain

Front 23

Cornea

Back 23

The protective layer over your eye

Front 24

Pupil

Back 24

The black area light enters the eye through

Front 25

Iris

Back 25

The colored muscle the controls the size of the pupil and determines your eye color

Front 26

Lens

Back 26

A flexible structure that focuses light.

Front 27

Retina

Back 27

The layer of receptor cells that lines the back of your eye

Front 28

Nearsightedness

Back 28

Can see nearby objects, but faraway objects are out of focus

Front 29

Farsightedness

Back 29

Oppisite of Nearsightedness

Front 30

Eardrum

Back 30

A membrane that vibrates when sound strikes it

Front 31

Cochlea

Back 31

A snail shaped tube that is lined with receptor cells that respond to sound

Front 32

Semicircular Canals

Back 32

Structures in your ears that are responsible for your sense of balance

Front 33

Cardiovascular System

Back 33

The way blood travels through the body

Front 34

Heart

Back 34

A four chambered muscle that pumps blood through your body

Front 35

Atrium

Back 35

The parts of the heart that receive blood from the body

Front 36

Pacemaker

Back 36

Heart Cells that send out signals that make the heart muscles contract

Front 37

Ventricle

Back 37

Pumps blood out of the heart

Front 38

Valve

Back 38

A flap of tissue that prevents blood from flowing backwards

Front 39

Artery

Back 39

Vessel that carries blood away from the heart

Front 40

Capillary

Back 40

Small Vessel which is where gas exchange occurs

Front 41

Vein

Back 41

A vessels full of valves that carries blood to the heart

Front 42

Aorta

Back 42

Major Artery that carries blood to the body

Front 43

Coronary Artery

Back 43

The first branches of the aorta

Front 44

Pulse

Back 44

Each time your heart contracts

Front 45

Diffusion

Back 45

Process of molecules moving from an area of higher concentration to an area of lower concentration

Front 46

Blood Pressure

Back 46

Blood's force against the walls of blood vessels

Front 47

Plasma

Back 47

the liquid in blood made up of waste, water, and nutrients

Front 48

Red Blood Cell

Back 48

Cells in blood that carry oxygen to the body

Front 49

Hemoglobin

Back 49

An iron containing protein that binds chemically to oxygen molecules

Front 50

White Blood Cells

Back 50

Cells in blood that fight diseases

Front 51

Platelets

Back 51

Cell fragments that weave clots to stop your blood from escaping when you get a cut

Front 52

Lymphatic System

Back 52

Your body's drainage system

Front 53

Lymph

Back 53

The fluid in the lymphatic system

Front 54

Lymph Nodes

Back 54

Filter Lymph

Front 55

Atheroscelosis

Back 55

A condition in which an artery wall thickens as a result of the buildup of fatty materials.

Front 56

Heart Attack

Back 56

When blood flow to a part of the heart is blocked

Front 57

Hypertension

Back 57

High Blood Pressure

Front 58

Respiration

Back 58

The process in which oxygen and glucose undergo a complex series of chemical reactions inside cells

Front 59

Cilia

Back 59

Tiny hairlike extensions that can move together in a sweeping motion

Front 60

Pharynx

Back 60

The throat

Front 61

Trachea

Back 61

the link between the pharynx and the lungs

Front 62

Bronchi

Back 62

the passages that direct air to the lungs

Front 63

Lungs

Back 63

Main organs of respiratory system

Front 64

Alveoli

Back 64

tiny sacs of lung tissue specialized for gas exchange

Front 65

Diaphragm

Back 65

A large dome-shaped muscle

Front 66

Larynx

Back 66

Voice Box

Front 67

Vocal Cords

Back 67

The organ that creates your voice

Front 68

Tar

Back 68

The dark sticky substance that is created when tobacco is burned

Front 69

Carbon Monoxide

Back 69

A colorless, oderless gas

Front 70

Nicotine

Back 70

Drug that increases activity of nervous system and heart

Front 71

Addiction

Back 71

Physical Dependence

Front 72

Bronchitis

Back 72

Breathing passages become smaller

Front 73

Emphysema

Back 73

Disease that destroys lung tissue

Front 74

What are three jobs of the Nevous System

Back 74

To Interpret stimuli, send reactions, and reflexes

Front 75

What are the parts of the Nervous System

Back 75

The brain is the control center of your body and interprets impulses, and your spinal cord is the link between the peripheral nervous system and the brain.