Body Systems
_____ are tiny air sacs through which oxygen and carbon dioxide pass in and out of the bloodstream.
alveoli
The undigested substances are passed out of the body through the
anus
The ________ is the body's main artery.
aorta
A blood vessel that takes oxygen-rich blood away from the heart.
artery
When does a human life begin?
at the moment of conception
The remaining amounts of water, vitamins, and minerals are absorbed in the
bloodstream
Air is passed from the trachea into the lungs through two large tubes called
bronchi
Exhalation removes more ________ from the body than inhalation brought in.
carbon dioxide
Skeletal and smooth muscles move when nerve impulses, sent from the ________, stimulate the muscle fibers, telling them to either contract or relax.
central nervous system
A space or room within the heart.
chamber
The respiratory system works with the ____________ system to add oxygen to the blood and remove carbon dioxide from the body.
circulatory
The beginning of life, the beginning of pregnancy
conception
The _____ is the inner layer of skin, which contains blood vessels, sweat glands, hair follicles, and nerve cells.
dermis
The ___________ system prepares food for absorption into the bloodstream.
digestive
A sudden surge of energy in one direction.
electrical impulse
The _________ system regulates the body's metabolism, growth, and functions of the sexual organs.
endocrine
The _____ is the outer layer of the skin, which makes the body water-proof, gives it color, and helps to maintain hydration levels.
epidermis
The pharynx forms the food substance into balls and then pushes it into the
esophagus
Movements occur when the appendicular skeleton works independently of the muscular system.
false
The only function of the skeletal system is to provide the body with a framework.
false
The appendicular skeleton consists of the skull, spine, ribs, and sternum.
false: arms, hands, pelvis, feet
There are 206 tendons that make up the skeletal system.
false: bones
The human heart is divided into _____ chambers.
four
An organ or group of cells that secretes a chemical substance of the body
gland
The endocrine system consists of ______ that secrete _______ into the bloodstream.
glands hormones
The _______ is the main organ of the circulatory system.
heart
A chemical substance produced by the glands of he endocrine system in order to control specific tissues and organs
hormone
Your _____ defends the body against harm.
immune system
According to the text, what is the function of the male reproductive organs?
initiator
Not controlled by will
involuntary
________ muscles move without conscious control.
involuntary
The __________ remove excess water, salts, uric acids, and chemicals from the blood.
kidneys
The main organs of the excretory system are the
kidneys
The ____________________ prevents food or liquids from getting into the lungs.
larynx
Carbon dioxide is removed from the bloodstream by the _______
lungs
The main organ of the respiratory system is the
lungs
white blood cells that produce antibodies
lymphocytes
The nervous system is made up of the central and ______ nervous systems.
peripheral
After the food has been chewed and lubricated, it is pushed by the tongue into the___________.
pharynx
The ________ gland controls and regulates all other glands, and it secretes growth hormones.
pituitary
Having to do with the lungs.
pulmonary
The _______ circulation brings carbon dioxide-filled blood to the lungs.
pulmonary
The left side of the heart performs the _____ circulation.
pulmonary
______ blood cells bring oxygen to cells and take carbon dioxide away.
red
The ____ channels the waste-filled blood to the excretory system
renal artery
The ___________ secretes salts, acids, and enzymes, which continue the breakdown of proteins, fats, and carbohydrates.
small intestine
Types of involuntary muscles:
smooth and cardiac
While in the _________ , food is broken down by powerful acids and turned into chyme.
stomach
The integumentary system protects the body and internal organs from:
sunlight bacteria injury
The _______ excrete(s) excess salts and water.
sweat glands
Having to do with the entire body.
systemic
The _______ circulation disperses oxygen-rich blood throughout the body.
systemic
The circulatory system is divided into two main parts, the _______ circulation and the pulmonary circulation.
systemic
What is the main purpose of the nervous system?
to gather, store, and respond to information
The axial skeleton protects the body's vital organs.
true
The _______ stores the waste until it is ready to be expelled from the body.
urinary bladder
Nutrients are absorbed into the bloodstream through small finger-like nodules on the wall of the intestines called .
villi
Skeletal muscles are controlled
voluntarily
controlled by will
voluntary
As air passes through the nose, it is _____ and cleaned.
warmed
The union of the male gamete and the female gamete
Fertilization
The muscular system is composed of approximately _____ skeletal muscles.
600
destroys bacterium in the bloodstream
Antibodies
_____ transfer waste-filled blood from tissues into the pulmonary circulation.
Capillaries
Exhalation occurs when the ________________ relaxes, causing the lungs to contract.
Diaphragm
defends your body from any organisms that threaten the destruction of cells
Immune system
glands that filter harmful bacteria from the lymphatic system
Lymph nodes
a system of vessels that are responsible for the removal of bacteria from the bloodstream
Lymphatic system
Describe God's involvement in the creation of every person.
Psalm 139:13-16
What is the function of the female reproductive organs?
Recievers and carriers