QUIZ 2: (Nervous + Circulatory Systems; Respiratory, Muscular, + Skeletal Systems; Digestive, Excretory, Endocrine, + Integumentary Systems; & Immune, Lymphatic, and Reproductive Systems)
stomach
While in the __________, food is broken down by powerful acids and turned into chyme.
involuntarily
____________ muscles move without conscious control.
Alveoli
______________ are tiny air sacs through which oxygen and carbon dioxide pass in and out of the bloodstream.
Central Nervous System (CNS)
Skeletal and smooth muscles move when nerve impulses, sent from the _________ ___________ __________ , stimulate the muscle fibers, telling them to either contract or relax.
voluntarily
Skeletal muscles are controlled _________.
False
T/F: The appendicular skeleton consists of the skull, spine, ribs, and sternum.
True
T/F: The axial skeleton protects the body's vital organs.
False
T/F: The only function of the skeletal system is to provide the body with a framework.
False
T/F: There are 206 tendons that make up the skeletal system.
glands; hormones
The endocrine system consists of ____________ that secrete __________ into the bloodstream.
sunlight bacteria injury
The integumentary system protects the body and internal organs from:
lungs
The main organ of the respiratory system is the ________.
Kidneys
The main organs of the excretory system are the ____________.
pulmonary
having to do with the lungs
artery
A blood vessel that takes oxygen-rich blood away from the heart.
chamber
A space or room within the heart.
electrical impulse
A sudden surge of energy in one direction.
Pharynx
After the food has been chewed and lubricated, it is pushed by the tongue into the___________.
Bronchi
Air is passed from the trachea into the lungs through two large tubes called ___________.
warmed
As air passes through the nose, it is _________ and cleaned.
Diaphragm
Exhalation occurs when the ________________ relaxes, causing the lungs to contract.
carbon dioxide
Exhalation removes more _______ ___________ from the body than inhalation brought in.
systemic
Having to do with the entire body.
Villi
Nutrients are absorbed into the bloodstream through small finger-like nodules on the wall of the intestines called _______.
Dermis
The _____ is the inner layer of skin, which contains blood vessels, sweat glands, hair follicles, and nerve cells.
Epidermis
The _____ is the outer layer of the skin, which makes the body water-proof, gives it color, and helps to maintain hydration levels.
sweat glands
The _______ _________ excrete(s) excess salts and water.
salivary
The ________ glands in the mouth secrete enzymes which help prepare the food for digestion in the stomach.
small intestine
The _________ ___________ secretes salts, acids, and enzymes, which continue the breakdown of proteins, fats, and carbohydrates.
urinary bladder
The _________ ___________ stores the waste until it is ready to be expelled from the body.
Pituitary
The _________ gland controls and regulates all other glands, and it secretes growth hormones.
renal artery
The __________ ___________channels the waste-filled blood to the excretory system.
Digestive
The ___________ system prepares food for absorption into the bloodstream.
Kidneys
The ____________ remove excess water, salts, uric acids, and chemicals from the blood.
endocrine
The _____________ system regulates the body's metabolism, growth, and functions of the sexual organs.
Larynx
The ____________________ prevents food or liquids from getting into the lungs.
600
The muscular system is composed of approximately _____ skeletal muscles.
Esaphogus
The pharynx forms the food substance into balls and then pushes it into the _______________.
large intestine
The remaining amounts of water, vitamins, and minerals are absorbed in the _______ __________.
circulatory
The respiratory system works with the ____________ system to add oxygen to the blood and remove carbon dioxide from the body.
anus
The undigested substances are passed out of the body through the ______.
smooth cardiac
Types of involuntary muscles: