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Unit 5 (Digestive system (Nose Which of the following structures is…
Unit 5
Digestive system
Nose
Which of the following structures is part of the human respiratory system?
Rectum
Which is not an organ of the urinary system?
Absorb nutrients
What is an important function of the digestive system?
Nervous system
The brain and spinal cord are both parts of which system?
Absorb oxygen
What is an important function of the respiratory system?
Body
Where does blood go once it is pumped out of the left ventricle?
Organ systems, organs, tissues, cells
Which of the following best describes how the human body is organized, from the largest to the smallest structure?
Arteries
Which blood vessel takes blood away from the heart?
Mechanical breakdown and chemical breakdown
For food to be absorbed by your body, which of the following must occur?
Filter
Which of the following operates in the same way as a kidney?
Oxygen, carbon dioxide, and nutrients
What is transported by blood?
Bladder
Where is urine stored?
Stomach
Which of the following is not a sensory organ?
It increases the speed of chemical breakdown.
During digestion, what is the effect of mechanical breakdown on chemical breakdown?
Pump
A good model of the human heart would show the heart as a
_
.
They are delivered by blood, needed by every cell, and absorbed by the small intestine.
Which of the following are characteristics of nutrients?
The nervous system does not deliver nutrients to your body.
Which of the following is not a characteristic of the nervous system?
Respiratory system
Which of the following statements is true?
A. Your lungs can store several hours' worth of oxygen.
B. Your body can't store oxygen at all.
C. Your body stores oxygen in your bloodstream.
D. Your body needs carbon dioxide to function properly.
ANSWER: B
What can you infer about the function of the ribcage?
A. It protects the lungs.
B. It helps the lungs pump oxygen.
C. It delivers oxygen from the lungs to the bloodstream.
D. It connects the trachea to the lungs
ANSWER: A
Place the following events in sequence: A) Air pressure inside your lungs drops; B) The diaphragm contracts; C) Air from outside rushes into your lungs.
A. A, B, C
B. B, A, C
C. C, A, B
D. B, C, A
ANSWER: B
What word best describes the function of the trachea?
A. Pumping station
B. Entrance point
C. Muscle
D. Passageway
ANSWER: D
Where does the transfer of oxygen into the bloodstream take place?
A. In the heart
B. In the trachea
C. In the alveoli
D. In the nasal passages
ANSWER: C
What do capillaries have in common with veins and arteries?
A. They are all types of breathing passages.
B. They all store oxygen and other nutrients.
C. They are all types of blood vessels.
D. They are all located in the lungs.
ANSWER: C
The walls of the alveoli and capillaries are permeable. What does this mean?
A. Substances can pass through them.
B. They are made of muscle.
C. They are located throughout the body.
D. They are made of bone.
ANSWER: A
What term best describes the role of carbon dioxide in the human body?
A. Beneficial
B. Toxic
C. Harmless
D. Necessary
ANSWER: B
What do lung cancer and emphysema have in common?
A. They both occur among almost everybody as they get older.
B. They are both caused by the buildup of carbon dioxide in the lungs.
C. They are both normal side effects of respiration.
D. They are both caused by smoking.
ANSWER: D
What happens when your diaphragm relaxes and moves upward?
A. Your lungs deflate and you breathe out.
B. Your lungs inflate and you breathe in.
C. Your alveoli transfer oxygen to your bloodstream.
D. Your bloodstream transfers carbon dioxide to your alveoli.
ANSWER: A
Pats of the Heart