Blood and Circulation

Red blood cells have a life span of about

120 Days

Scientists discovered blood vessels and that the heart pumps blood for your body in the _____

1600s

Red blood cells are made at a rate of about _________ to ________ per second in the center of long bones like your femur in your thigh.

2 million, 3 million

A cubic millimeter of blood can contain as many as ________ platelets

400,000

A cubic millimeter of blood has about _____ red blood cells

5 million

Platelets have a life span of about ______

5 to 9 days

A cubic millimeter of blood has about ______ to ______ white blood cells

5,000 to 10,000

Blood makes up about ______ of your body's mass

8%

The life span of white blood cells varies from ______ to _____

A few days to many months

Four types of blood

A, B, AB, O

A, B, and AB have chemical identification tags called _______ on their red blood cells

Antigens

The blood returns to the left side if the heart and pumps oxygen rich blood into the ______, the largest artery in your body

Aorta

The blood vessels that carry blood away from the heart are called _______

Arteries

One leading cause of heart disease_______

Atherosclerosis

White blood cells fight_____,_____, and ______

Bacteria, viruses, and other invaders of your body

Your heart is located ________________________________

Behind your breastbone, called the sternum, and between your lungs

The force of blood on the walls of blood vessels is called ______

Blood Pressure

First of the four important functions of blood

Blood carries oxygen from your lungs to all of your body cells, carbon dioxide diffuses from the body cells into the blood and is carried to your lungs to be exhaled.

Second of the four important functions of blood

Blood carries waste products from your cells to your kidneys to be removed and that is why you urinate.

Third of the four important functions of blood

Blood transports nutrients and other substances to your body cells

The blood vessels that connect arteries and veins are called _____

Capillaries

The walls of ______ are only one cell thick

Capillaries

As blood is pumped out of the heart it travels through ________, ________, and then _______

Capillaries, arteries, veins

The heart is made up of_____ ______ ______

Cardiac muscle tissue

Blood is moved throughout the body by your _______

Cardiovascular system

Fourth of the four important functions of blood

Cells and molecules in blood fight infections and help heal wounds.

Your heart has four compartments called _____

Chambers

Arteries have thick, elastic walls made of ______ ______ and _____ ______ ______

Connective tissue and smooth muscle tissue

The flow of blood to and from the tissues of the heart________

Coronary Circulation

Atherosclerosis is caused when __________ build up on arterial walls

Fatty Deposits

A cubic millimeter of blood is about the same size of a ______

Grain of rice

When the coronary is blocked oxygen and nutrients cannot reach all of the cells of the heart and this could lead to a _____ _____

Heart Attack

Your cardiovascular system includes your ______, ______, and ________

Heart, kilometers of blood, and blood

Instead red blood cells contain ______ which is a molecule which carries oxygen and carbon dioxide

Hemoglobin

_________ is also known as high blood pressure

Hypertension

Systemic circulation is the ________ of the three sections of your circulatory system

Largest

Hemoglobin carries oxygen from your _____ to all your _____ then carries some of the carbon dioxide from your body cells back to your lungs.

Lungs, body cells

After tissue fluid diffuses into the lymphatic capillaries it is called ______

Lymph

Your body's tissue fluid is removed by the _______ _______

Lymphatic system

Type O's blood cells have

No antigens

Red Blood cells have no ______ when the mature

Nuclei

Veins have a _________ valves that keep blood moving toward the heart

One- way

Blood moves _____ and _____ to cells and carry carbon dioxide and other wastes away from the cells

Oxygen, nurtients

The liquid part of blood, which is made up of mostly water is _____

Plasma

Blood is made up of

Plasma, red blood cells, white blood cell, and platelets

Irregularly shaped cell fragments that help clot blood ______

Platelets

The flow of blood through the heart to the lungs and back to the heart is called _____ _____

Pulmonary Circulation

The blood returning from the body through the _______ side of the heart and to the lungs contains celluar wastes

Right

The heart has two upper chambers the _______ and ______

Right atrium, left atrium

The heart has two lower chambers the ______ and ______

Right ventricle, left ventricle

Red blood cells are wear out and are destroyed at the _________

Same rate they are made

When blood pressure is higher or lower than normal, messages are sent to the brain to __________ or __________ your heart rate

Speed up, slow down

Oxygen rich blood moves to all your organs and body tissues, except the heart and lungs, and oxygen poor blood returns to the heart by a process called

Systemic Circulation

Blood is a ____

Tissue

The part that carries blood back to the heart is called ______

Veins

_____ ______ and _____ _____ diffuse into body cells from _______

Waste materials and carbon dioxide, capillaries

Lymphocytes are a type of _____ _____ _____ that help defend your body against disease- causing organisms

White blood cell

When a person has high blood pressure it causes the heart to ________ to keep blood flowing

Work Harder