WorksheetsBiology: Chapter 26, 27, & 28 Test
Total questions: 10
Worksheet time: 5mins
The brain is connected to the spinal cord by the
cerebrum.
brain stem
sensory cortex
vertebrae
Both the nervous and the endocrine systems allow you to
analyze thoughts
respond to stimuli
control growth
react at the same rate
Which of the following carries messages to parts of the body?
targets
sensors
hormones
organs
The body works to maintain homeostasis in response to what conditions?
tissue and cell formation
production of key vitamins
cell differentiation and determination
internal and external changes
What organ in the human body is most like the captain of the ship?
the brain
the heart
the lungs
the skin
A pulmonary artery carries blood from
the right ventricle to the lung.
the lung to the left atrium.
one lung to the other.
the pulmonary vein to the heart.
When your heart and breathing speed up or slow down, your body is trying to
increase lung volume.
bring in more carbon dioxide.
increase its red blood cells.
maintain homeostasis.
Which of the following enables the heart’s chambers to contract and relax after being stimulated?
the mitral valve
the septum
the cardiac muscles
the tricuspid valve
How do respiratory diseases like asthma, emphysema, and cystic fibrosis affect the respiratory system?
They make gas exchange more difficult.
They block all air from entering the lungs.
They prevent the blood from carrying O2
They keep white blood cells from fighting infection.
The heart’s natural pacemaker is the
medulla and pons.
diaphragm.
right ventricle.
sinoatrial node.
