human anatomy
Vessels that carry blood away from the heart are called
arteries
Which of the following is not a function of the digestive system?
excrete liquid wastes
kidneys, bladder, ureters
excretory system
When the diaphragm and rib cage muscles relax
exhalation occurs
Which of the following is not a function of the human cardiovascular system?
filtering wastes out of the blood
brain, nerves, sensory receptors
nervous system
the heart chamber that receives blood from the venae cavae is the
right atrium
pulmonary had to do with
the lungs
what does the epiglottis cover?
the trachea
Urine leaves the body through the
urethra
An artery
usually carries oxygen-rich blood
If a blood vessel has valves, it probably is a(n)
vein
what is the pathway air must follow in the respiratory system?
air enters nose. dust gets trapped by the hairs. the nasal chamber is above the roof of the mouth, the air gets warmed and becomes moistened here. Air goes down the windpipe, which is also called the trachea. This is held open by rings of cartilage. The epiglottis is a flap of tissue over the trachea. It stops the food from going into the lungs. The trachea splits into two tubes called bronchi. each of the tubes goes to a lung. The tubes get smaller and smaller as they go into the lungs. These smaller tubes are called bronchioles. Lungs are the soft tissue where oxygen goes into the body carbon dioxide leaves. The tiny tubes of the lungs end in air sacs (like tiny balloons) called alveoli. These air sacs are covered with capillaries. The capillaries are where the oxygen and carbon dioxide enter and leave the blood.
The actual exchange of gases occurs at the site of the
alveoli
Which of the following would not help prevent bone loss
avoiding uv radiation
arteries carry blood
away from the heart
Which of the following structures enables the skin to receive nutrients, eliminate wastes, and regulate body temperature?
blood vessels
cardiovascular system
blood vessels, heart function; Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).
respiratory system
brings o2 into the body and to the blood removes CO2 from the body
Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called
bronchioles
The smallest and most numerous blood vessels in the body are the
capillaries
Enzymes in saliva begin the chemical digestion of
carbohydrates
The heart and the blood vessels are separate organs that form the
circulatory system
blood vessels, heart
circulatory system
large intestine, esophagus, rectum
digestive system
The last function of the digestive system is
elimination
testis, vas deferens, urethra
endocrine system
thyroid, pituitary and adrenal glands
endocrine system
The iron-containing molecule in red blood cells is called
hemoglobin
The kidneys play a major role in maintaining
homeostasis by removing urea, water, and other wastes from the blood
Which of the following occurs as air rushes into the lungs from the environment to equalize air pressure?
inhalation
Blood entering the right atrium
is deoxygenated
Each alveolus....
is surrounded by capillaries
Urea must be eliminated from the body because it
is toxic
what does the septum do for the heart
it divides the chambers
Oxygenated blood from the lungs is received by the
left atrium
The basic functional unit of the kidney is the
nephron
organs of respiratory system
nose, nasal chambers, larynx, pharynx, epiglottis, trachea, branchi, bronchicoles, alveoli, diaphram, lungs, mouth
pathway of air
nose>nasal chamber>pharynx>larynx>epiglottis>trachea>bronchi>bronchioles>alveoli
Gas exchange occurs when
oxygen diffuses from the alveoli through the capillary walls to the blood.
The wavelike contractions of muscle that move food through the digestive system are called
peristalsis
Pepsin and hydrochloric acid in the stomach begin the digestion of
protein
red blood cells transport
respiratory gasses
nose, vocal chords, lungs
respiratory system
list the four chambers
right, left ventricle right, left atrium
Which of the following is not moved by muscle tissue?
signals in the brain
vertebral column, skull, sternum
skeletal system
excretory system
the Excretory system is responsible for the elimination of wastes produced by homeostasis. There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system.
the ventricles are
the chambers of the heart that pump blood to the lungs and to the rest of the body.
what is peristalsis
the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward
Most of the enzymes and chemicals secreted by the upper end of the small intestine come from
the liver and pancreas.
what is the function of bile
to provide enzymes
veins carry blood
towards the heart
bile is not produced in the gall bladder
true
The filtrate removed from the blood by the kidneys might contain
water, salts, amino acids, glucose, and urea
Defending the body against bacterial infection and invasion by foreign substances is a function of
white blood cells
Infections generally result in an increase in the number of
white blood cells